Tq-systems Mbls1028a User manual

MBLS1028A

User's Manual

MBLS1028A UM 0100

03.11.2020

TABLE OF CONTENTS

1. ABOUT THIS MANUAL................................................................................................................................................................................1

1.1 Copyright and license expenses.............................................................................................................................................................1

1.2 Registered trademarks...............................................................................................................................................................................1

1.3 Disclaimer......................................................................................................................................................................................................1

1.4 Imprint............................................................................................................................................................................................................1

1.5 Tips on safety................................................................................................................................................................................................2

1.6 Symbols and typographic conventions ...............................................................................................................................................2

1.7 Handling and ESD tips...............................................................................................................................................................................2

1.8 Naming of signals........................................................................................................................................................................................3

1.9 Further applicable documents / presumed knowledge.................................................................................................................3

2. BRIEF DESCRIPTION ....................................................................................................................................................................................4

3. TECHNICAL DATA........................................................................................................................................................................................4

3.1 System architecture and functionality..................................................................................................................................................4

3.1.1 Block diagram MBLS1028A ......................................................................................................................................................................4

4. ELECTRONICS................................................................................................................................................................................................5

4.1 System components...................................................................................................................................................................................5

4.1.1 TQMLS1028A ................................................................................................................................................................................................5

4.1.1.1 TQMLS1028A pinout ..................................................................................................................................................................................6

4.1.1.2 TQMLS1028A connectors .........................................................................................................................................................................6

4.1.1.3 Boot configuration......................................................................................................................................................................................6

4.1.2 Clock generation .........................................................................................................................................................................................7

4.1.3 Reset structure .............................................................................................................................................................................................8

4.1.4 I2C devices......................................................................................................................................................................................................9

4.1.4.1 Temperature sensor ................................................................................................................................................................................ 10

4.1.4.2 GPIO port expander................................................................................................................................................................................. 10

4.2 Power supply............................................................................................................................................................................................. 11

4.2.1 Protective circuitry................................................................................................................................................................................... 11

4.2.2 Battery.......................................................................................................................................................................................................... 11

4.3 Communication interfaces.................................................................................................................................................................... 12

4.3.1 Ethernet....................................................................................................................................................................................................... 12

4.3.1.1 RGMII............................................................................................................................................................................................................ 12

4.3.1.2 SGMII............................................................................................................................................................................................................ 12

4.3.1.3 QSGMII......................................................................................................................................................................................................... 13

4.3.2 USB 3.0 Hub................................................................................................................................................................................................ 14

4.3.3 USB 3.0 OTG ............................................................................................................................................................................................... 15

4.3.4 CAN............................................................................................................................................................................................................... 16

4.3.5 Mini PCIe plus SIM card socket............................................................................................................................................................. 17

4.3.6 M.2 B-Key (SSD SATA).............................................................................................................................................................................. 19

4.3.7 mikroBUS™ ................................................................................................................................................................................................. 21

4.3.8 SD card......................................................................................................................................................................................................... 22

4.3.9 Headers........................................................................................................................................................................................................ 23

4.4 User interfaces........................................................................................................................................................................................... 25

4.4.1 Display port................................................................................................................................................................................................ 25

4.4.2 Status LEDs................................................................................................................................................................................................. 26

4.4.3 Buzzer........................................................................................................................................................................................................... 26

4.4.4 Reset Push button.................................................................................................................................................................................... 26

4.4.5 User push button...................................................................................................................................................................................... 26

4.4.6 DIP switches............................................................................................................................................................................................... 26

4.5 Diagnostic interfaces............................................................................................................................................................................... 27

4.5.1 JTAG®........................................................................................................................................................................................................... 27

4.5.2 OpenSDA / DAPLink ................................................................................................................................................................................ 28

4.5.3 USB Debug................................................................................................................................................................................................. 29

TABLE OF CONTENTS (continued)

5. SOFTWARE.................................................................................................................................................................................................. 29

6. MECHANICS................................................................................................................................................................................................ 30

6.1 TQMLS1028A and MBLS1028A dimensions..................................................................................................................................... 30

6.2 Notes of treatment................................................................................................................................................................................... 31

6.3 Embedding in the overall system........................................................................................................................................................ 31

6.4 Housing ....................................................................................................................................................................................................... 31

6.5 Thermal management............................................................................................................................................................................ 31

6.6 Assembly..................................................................................................................................................................................................... 32

7. SAFETY REQUIREMENTS AND PROTECTIVE REGULATIONS......................................................................................................... 34

7.1 EMC............................................................................................................................................................................................................... 34

7.2 ESD................................................................................................................................................................................................................ 34

7.3 Operational safety and personal security......................................................................................................................................... 34

8. CLIMATIC AND OPERATIONAL CONDITIONS................................................................................................................................... 34

8.1 Protection against external effects..................................................................................................................................................... 34

8.2 Reliability and service life....................................................................................................................................................................... 34

9. ENVIRONMENT PROTECTION................................................................................................................................................................ 35

9.1 RoHS............................................................................................................................................................................................................. 35

9.2 WEEE®.......................................................................................................................................................................................................... 35

9.3 REACH®........................................................................................................................................................................................................ 35

9.4 EuP................................................................................................................................................................................................................ 35

9.5 Packaging ................................................................................................................................................................................................... 35

9.6 Batteries ...................................................................................................................................................................................................... 35

9.6.1 General notes ............................................................................................................................................................................................ 35

9.6.2 Lithium batteries ...................................................................................................................................................................................... 35

9.7 Other entries.............................................................................................................................................................................................. 35

10. APPENDIX ................................................................................................................................................................................................... 36

10.1 Acronyms and definitions...................................................................................................................................................................... 36

10.2 References.................................................................................................................................................................................................. 38

TABLE DIRECTORY

Table 1: Terms and Conventions ............................................................................................................................................................................2

Table 2: Connectors assembled on MBLS1028A................................................................................................................................................6

Table 3: Boot Mode configuration, DIP switch S9 .............................................................................................................................................6

Table 4: I2C devices, address mapping on TQMLS1028A and MBLS1028A ...............................................................................................9

Table 5: Function of Port Expanders................................................................................................................................................................... 10

Table 6: Pinout Ethernet QSGMII, RJ-45 connectors X8, X9......................................................................................................................... 13

Table 7: Pinout USB Host1&2, USB Type A, X10 .............................................................................................................................................. 14

Table 8: Pinout USB Host3, mPCIe connector, X12 ........................................................................................................................................ 14

Table 9: Pinout USB Host4, 40-pin header, X38............................................................................................................................................... 14

Table 10: Pinout USB OTG, X5................................................................................................................................................................................. 15

Table 11: Pinout CAN, X17, X29.............................................................................................................................................................................. 16

Table 12: CAN termination, DIP switch S1........................................................................................................................................................... 16

Table 13: Maximum permitted currents Mini PCIe, X12 ................................................................................................................................. 17

Table 14: Pinout Mini PCIe, X12.............................................................................................................................................................................. 18

Table 15: Pinout SIM card connector, X13........................................................................................................................................................... 18

Table 16: Pinout M.2 B-Key, X35............................................................................................................................................................................. 20

Table 17: Pinout mikroBUS™ connectors X32, X33........................................................................................................................................... 21

Table 18: Pinout SD card, X16 ................................................................................................................................................................................. 22

Table 19: Pinout Header 1, X25............................................................................................................................................................................... 23

Table 20: Pinout Header 2, X38............................................................................................................................................................................... 24

Table 21: Pinout display port, X15......................................................................................................................................................................... 25

Table 22: Supply voltages LEDs.............................................................................................................................................................................. 26

Table 23: Function DIP switch, S10........................................................................................................................................................................ 26

Table 24: Pinout JTAG®header, X34 ..................................................................................................................................................................... 27

Table 25: Pinout OpenSDA, 100 mil header, X22.............................................................................................................................................. 28

Table 26: Pinout OpenSDA, USB Mini-B, X24...................................................................................................................................................... 28

Table 27: Pinout Debug USB, X19.......................................................................................................................................................................... 29

Table 28: Labels on MBLS1028A............................................................................................................................................................................. 32

Table 29: Climatic and operational conditions MBLS1028A.......................................................................................................................... 34

Table 30: Acronyms.................................................................................................................................................................................................... 36

Table 31: Further applicable documents............................................................................................................................................................. 38

FIGURE DIRECTORY

Figure 1: Block diagram MBLS1028A ......................................................................................................................................................................4

Figure 2: Block diagram TQMLS1028A ...................................................................................................................................................................5

Figure 3: Block diagram clock generation on MBLS1028A...............................................................................................................................7

Figure 4: Block diagram Reset structure ................................................................................................................................................................8

Figure 5: Block diagram I2C bus ................................................................................................................................................................................9

Figure 6: Block diagram power supply................................................................................................................................................................ 11

Figure 7: Block diagram protective circuit.......................................................................................................................................................... 11

Figure 8: Block diagram Ethernet RGMII ............................................................................................................................................................. 12

Figure 9: Block diagram Ethernet SGMII.............................................................................................................................................................. 12

Figure 10: Gbit ETH connectors X6, X7................................................................................................................................................................... 12

Figure 11: Block diagram Ethernet QSGMII .......................................................................................................................................................... 13

Figure 12: Gbit ETH connectors X8, X9................................................................................................................................................................... 13

Figure 13: Block diagram USB 3.0 Hub................................................................................................................................................................... 14

Figure 14: Block diagram USB................................................................................................................................................................................... 15

Figure 15: Block diagram CAN.................................................................................................................................................................................. 16

Figure 16: Block diagram Mini PCIe, SIM card...................................................................................................................................................... 17

Figure 17: Block diagram M.2 (SSD SATA)............................................................................................................................................................. 19

Figure 18: Block diagram SD card............................................................................................................................................................................ 22

Figure 19: Block diagram display port.................................................................................................................................................................... 25

Figure 20: Block diagram JTAG®.............................................................................................................................................................................. 27

Figure 21: Block diagram Debug / RS-232 ............................................................................................................................................................ 29

Figure 22: MBLS1028A dimensions......................................................................................................................................................................... 30

Figure 23: MBLS1028A component placement top........................................................................................................................................... 32

Figure 24: MBLS1028A component placement bottom................................................................................................................................... 33

REVISION HISTORY

Rev. Date Name Pos. Modification

0100 03.11.2020 Petz First edition

1. ABOUT THIS MANUAL

1.1 Copyright and license expenses

This User's Manual may not be copied, reproduced, translated, changed or distributed, completely or partially in electronic,

machine readable, or in any other form without the written consent of TQ-Systems GmbH.

The drivers and utilities for the components used as well as the BIOS are subject to the copyrights of the respective

manufacturers. The licence conditions of the respective manufacturer are to be adhered to.

Bootloader-licence expenses are paid by TQ-Systems GmbH and are included in the price.

Licence expenses for the operating system and applications are not taken into consideration and must be calculated / declared

separately.

1.2 Registered trademarks

TQ-Systems GmbH aims to adhere to copyrights of all graphics and texts used in all publications, and strives to use original

or license-free graphics and texts.

All brand names and trademarks mentioned in this User's Manual, including those protected by a third party, unless specified

otherwise in writing, are subjected to the specifications of the current copyright laws and the proprietary laws of the present

registered proprietor without any limitation. One should conclude that brand and trademarks are rightly protected by a third

party.

1.3 Disclaimer

TQ-Systems GmbH does not guarantee that the information in this User's Manual is up-to-date, correct, complete or of good

quality. Nor does TQ-Systems GmbH assume guarantee for further usage of the information. Liability claims against TQ-Systems

GmbH, referring to material or non-material related damages caused, due to usage or non-usage of the information given in this

User's Manual, or due to usage of erroneous or incomplete information, are exempted, as long as there is no proven intentional

or negligent fault of TQ-Systems GmbH.

TQ-Systems GmbH explicitly reserves the rights to change or add to the contents of this User's Manual or parts of it without

special notification.

Important Notice:

Before using the Starterkit MBLS1028A or parts of the MBLS1028A schematics, you must evaluate it and determine if it is suitable

for your intended application. You assume all risks and liability associated with such use. TQ-Systems GmbH makes no other

warranties including, but not limited to, any implied warranty of merchantability or fitness for a particular purpose. Except where

prohibited by law, TQ-Systems GmbH will not be liable for any indirect, special, incidental or consequential loss or damage

arising from the usage of the Starterkit MBLS1028A or schematics used, regardless of the legal theory asserted.

1.4 Imprint

TQ-Systems GmbH

Gut Delling, Mühlstraße 2

D-82229 Seefeld

Tel: +49 8153 9308–0

Fax: +49 8153 9308–4223

E-Mail: Info@TQ-Group

Web: TQ-Group

1.5 Tips on safety

Improper or incorrect handling of the product can substantially reduce its life span.

1.6 Symbols and typographic conventions

Table 1: Terms and Conventions

Symbol Meaning

This symbol represents the handling of electrostatic-sensitive modules and / or components. These

components are often damaged / destroyed by the transmission of a voltage higher than about 50 V.

A human body usually only experiences electrostatic discharges above approximately 3,000 V.

This symbol indicates the possible use of voltages higher than 24 V.

Please note the relevant statutory regulations in this regard.

Non-compliance with these regulations can lead to serious damage to your health and also cause

damage / destruction of the component.

This symbol indicates a possible source of danger. Acting against the procedure described can lead to

possible damage to your health and / or cause damage / destruction of the material used.

This symbol represents important details or aspects for working with TQ-products.

Command

A font with fixed-width is used to denote commands, file names, or menu items.

1.7 Handling and ESD tips

General handling of your TQ-products

The TQ-product may only be used and serviced by certified personnel who have taken note of the

information, the safety regulations in this document and all related rules and regulations.

A general rule is: do not touch the TQ-product during operation. This is especially important when

switching on, changing jumper settings or connecting other devices without ensuring beforehand

that the power supply of the system has been switched off.

Violation of this guideline may result in damage / destruction of the MBLS1028A and be dangerous

to your health.

Improper handling of your TQ-product would render the guarantee invalid.

Proper ESD handling

The electronic components of your TQ-product are sensitive to electrostatic discharge (ESD).

Always wear antistatic clothing, use ESD-safe tools, packing materials etc., and operate your TQ-

product in an ESD-safe environment. Especially when you switch modules on, change jumper settings,

or connect other devices.

1.8 Naming of signals

A hash mark (#) at the end of the signal name indicates a low-active signal.

Example: RESET#

If a signal can switch between two functions and if this is noted in the name of the signal, the low-active function is marked with

a hash mark and shown at the end.

Example: C / D#

If a signal has multiple functions, the individual functions are separated by slashes when they are important for the wiring.

The identification of the individual functions follows the above conventions.

Example: WE2# / OE#

1.9 Further applicable documents / presumed knowledge

•Specifications and manual of the modules used:

These documents describe the service, functionality and special characteristics of the module used (incl. BIOS).

•Specifications of the components used:

The manufacturer’s specifications of the components used, for example CompactFlash cards, are to be taken note of.

They contain, if applicable, additional information that must be taken note of for safe and reliable operation.

These documents are stored at TQ-Systems GmbH.

•Chip errata:

It is the user’s responsibility to make sure all errata published by the manufacturer of each component are taken note of.

The manufacturer’s advice should be followed.

•Software behaviour:

No warranty can be given, nor responsibility taken for any unexpected software behaviour due to deficient components.

•General expertise:

Expertise in electrical engineering / computer engineering is required for the installation and the use of the device.

The following documents are required to fully comprehend the following contents:

•MBLS1028A circuit diagram

•TQMLS1028A User’s Manual

•LS1028A Data Sheet

•U-Boot documentation: www.denx.de/wiki/U-Boot/Documentation

•Yocto documentation: www.yoctoproject.org/docs/

•TQ-Support Wiki: Support-Wiki TQMLS1028A

2. BRIEF DESCRIPTION

This User's Manual describes the hardware of the MBLS1028A revision 0100.

The MBLS1028A is designed as a carrier board for the TQMLS1028A.

All TQMLS1028A interfaces, which can be used, are available on the MBLS1028A, thus the features of the CPU LS1028A

can be evaluated and software development for a TQMLS1028A-based project can be started directly.

The MBLS1028A supports TQMLS1028A modules with an LS1017A, LS1027A, LS1018A or LS1028A CPU.

3. TECHNICAL DATA

3.1 System architecture and functionality

3.1.1 Block diagram MBLS1028A

Figure 1: Block diagram MBLS1028A

4. ELECTRONICS

The TQMLS1028A with its LS1028A CPU is the central system component. It provides DDR4 SDRAM, eMMC, NOR flash and

EEPROM memory. All voltages required by the TQMLS1028A are derived from the supply voltage of 5 V.

The boot behaviour of the TQMLS1028A can be customised. The required boot-mode configuration can be set with DIP switches

on the MBLS1028A, see chapter 4.1.1.3.

4.1 System components

4.1.1 TQMLS1028A

The TQMLS1028A with its LS1028A CPU is the central system component. It provides DDR4 SDRAM, eMMC, NOR flash and an

EEPROM. All TQMLS1028A internal voltages are derived from the 5 V supply voltage. Further information can be found in the

TQMLS1028A User’s Manual. The available signals are routed to the MBLS1028A via two connectors. On the MBLS1028A the

interfaces provided by the TQMLS1028A are routed to industry standard connectors. Furthermore the MBLS1028A provides all

power supplies and configurations required for the operation of the TQMLS1028A. The MBLS1028A supports TQMLS1028A

modules with an LS1017A, LS1027A, LS1018A or LS1028A CPU.

Figure 2: Block diagram TQMLS1028A

4.1.1.1 TQMLS1028A pinout

All available TQMLS1028A signals are routed to two connectors on the MBLS1028A.

More detailed information is to be taken from the TQMLS1028A User’s Manual (4).

Note: Available interfaces

Depending on the TQMLS1028A derivative not all interfaces are available. Refer to the TQMLS1028A

User’s Manual and the TQMLS1028A pinout table to see which interfaces are available.

4.1.1.2 TQMLS1028A connectors

The MBLS1028A is connected to the carrier board with 240 pins on two connectors.

The following table shows details of the connectors assembled on the MBLS1028A:

Table 2: Connectors assembled on MBLS1028A

Manufacturer Part number Remark

TE connectivity 5177986-5

•

120 pin, 0.8 mm pitch

•Plating: Gold 0.2 µm

•

–40 °C to +125 °C

The TQMLS1028A is held in the mating connectors on the TQMLS1028A by 240 pins with a retention force of approximately 24 N.

To avoid damaging the connectors of the MBLS1028A or the TQMLS1028A while removing the TQMLS1028A, the use of the

extraction tool MOZI8XX is strongly recommended.

4.1.1.3 Boot configuration

The boot mode of the TQMLS1028A is determined by the level of the analogue 3.3 V signal RCW_SRC_SEL.

The boot mode defines the boot device and specific configurations. The boot mode is set with DIP switches.

The following table shows the permitted Boot Mode settings:

Table 3: Boot Mode configuration, DIP switch S9

Boot Mode S9-1~2 S9-3~4 S9-5~6 S9-7~8 RCW_SRC_SEL (3.3 V)

SD card, on MBLS1028A OFF OFF OFF OFF 3.3 V (80 % to 100 %)

eMMC, on TQMLS1028A ON OFF OFF OFF 2.33 V (60 % to 80 %)

NOR flash, on TQMLS1028A OFF ON OFF OFF 1.65 V (40 % to 60 %)

Hard Coded RCW, on TQMLS1028A OFF OFF ON OFF 1.05 V (20 % to 40 %)

I2C EEPROM, on TQMLS1028A OFF OFF OFF ON 0 V (0 % to 20 %)

4.1.2 Clock generation

The following figure shows, which clocks are required on the TQMLS1028A and how they are generated.

Figure 3: Block diagram clock generation on MBLS1028A

4.1.3 Reset structure

The reset structure is designed in such a way that the TQMLS1028A and the Reset button on the MBLS1028A are the control

center. This ensures that the Reset is enabled at the right time during power-up. Corresponding reset delays are handled by the

TQMLS1028A. The remaining PHYs, hub and other reset-capable components on the module are controlled by the I2C expander.

Figure 4: Block diagram Reset structure

4.1.4 I2C devices

The TQMLS1028A provides various I2C buses, of which only IIC5 and IIC6 are used on the MBLS1028A.

The following block diagram shows the I2C bus structure.

Figure 5: Block diagram I2C bus

On the TQMLS1028A further I2C devices are used, therefore the already assigned I2C addresses were taken into account.

The voltage (OVDD at IIC6) is fixed at 1.8 V and therefore requires a level shifter to 3.3 V.

The following table shows the I2C address mapping on TQMLS1028A and MBLS1028A.

Table 4: I2C devices, address mapping on TQMLS1028A and MBLS1028A

Location I2C bus Device Function 7-bit address Remark

MBLS1028A

IIC5

SI5338C Clock Generator

0x70 / 111 0000b

Optional, not connected

TUSB8041 USB 3.0 Hub

0x44 / 100 0100b

Optional, not connected

– mPCIe

–

Defined by customer, X12

– mikroBUS™

–

Defined by customer, X32

IIC6 PCA9555 Port expander

0x25 / 010 0101b

Device D43, 3.3 V

PCA9538 Port expander

0x70 / 111 0000b

Device D46, 1.8 V

TQMLS1028A IIC1

MKL04Z16 System Controller

0x11 / 001 0001b

Should not be altered

SE97B

Temp. Sensor

0x18 / 001 1000b

Access to temperature registers

EEPROM

0x50 / 101 0000b

R/W access in Normal Mode

EEPROM

0x30 / 011 0000b

R/W access in Protected Mode

24LC256T EEPROM

0x57 / 101 0111b

–

SA56004EDP Temp. Sensor

0x4C / 100 1100b

–

PCF85063 RTC

0x51 / 101 0001b

–

4.1.4.1 Temperature sensor

There is no temperature sensor on the MBLS1028A, but a temperature sensor SE97BTP is provided on the TQMLS1028A.

4.1.4.2 GPIO port expander

To control several components on the MBLS1028A, a port expander PCA9538 with 8 ports and a port expander PCA9555 with

16 ports are assembled. Both port expanders are controlled via IIC6. The addresses of the port expanders can be changed by

reassembling resistors. When changing the address, care must be taken to avoid address conflicts with existing I2C devices.

The assembly options are documented in the circuit diagram.

In the initial state, after power-up, all ports are set as input and the connected component is thus deactivated.

The following table shows the signals controlled by the port expanders.

Table 5: Function of Port Expanders

Port Signal Dir. Remark

8-port Expander PCA9538, D68, I2C address

0x25 / 010 0101b

IO_0 EC1_INT# I –

IO_1 EC1_RESET# O –

IO_2 SGMII_INT# I –

IO_3 SGMII_RESET# O –

IO_4 QSGMII_INT# I –

IO_5 QSGMII_RESET# O –

IO_6 DCDC_RESET O –

IO_7 – – (not used)

16-port Expander, PCA9538, D69, I2C address

0x70 / 111 0000b

IO0_0 CLK_INT# I –

IO0_1 USB_RST# O –

IO0_2 MPCIE_WAKE# O –

IO0_3 MPCIE_DIS# O –

IO0_4 MPCIE_RST# O –

IO0_5 SIM_CARD_DETECT I –

IO0_6 SATA_PERST# O –

IO0_7 RESET_SDA_3V3# O –

IO1_0 Mikro_Module_RST# O –

IO1_1 Mikro_Module_PWM O –

IO1_2 Mikro_Module_INT I –

IO1_3 USER_BUTTON_1 I –

IO1_4 USER_BUTTON_2 I –

IO1_5 USER_LED_1 O –

IO1_6 USER_LED_2 O –

IO1_7 BUZZER O –

4.2 Power supply

The MBLS1028A has to be supplied with 18 V to 28 V at X3 or X27. The typical supply voltage is 24 V.

The following figure shows all voltages present on the MBLS1028A, which are structured into three main paths consisting of an

LM25119, an LTC3851 and a TPS54335. These supply the biggest loads (TQMLS1028A, USB supply, SATA supply with up to

2500 mA). The power supply structure is designed in such a way that the 5 V voltage is always activated.

Furthermore the design allows power sequencing of all voltage levels used. All voltages are powered up after the boot process of

the TQMLS1028A.

At the two headers X25 and X38 on the MBLS1028A 1.8 V, 3.3 V, 5 V and 12 V are available. Both connectors share the available

total power of the individual voltage rails.

Figure 6: Block diagram power supply

4.2.1 Protective circuitry

The protection circuit (see Figure 7) features the following characteristics:

•Overcurrent protection by fuse 5 A, slow blow

•Overvoltage protection diode

•PI filter

•Reverse polarity protection by MOSFET

Figure 7: Block diagram protective circuit

4.2.2 Battery

In case of power failure a lithium battery type CR2032 on the MBLS1028A supplies the RTC on the TQMLS1028A.

4.3 Communication interfaces

4.3.1 Ethernet

4.3.1.1 RGMII

The LS1028A provides an RGMII Ethernet controller (EC1 – port 1). On the MBLS1028A the interface provides a Gigabit Ethernet

port. The PHY supports IEEE®802.3 10BASE-T, 100BASE-T, and 1000BASE-T.

The 125 MHz reference clock for the MAC of the CPU is generated by a quartz oscillator.

The RGMII interface contains PHY reset and interrupt signals. The PHY signals are routed to RJ-45 connector X6.

Figure 8: Block diagram Ethernet RGMII

4.3.1.2 SGMII

The LS1028A provides an Ethernet controller (SGMII – port 0), which is used as SGMII interface via SerDes Lane 0.

On the MBLS1028A the interface provides a Gigabit Ethernet port.

The SGMII interface contains PHY reset and interrupt signals. The PHY signals are routed to RJ-45 connector X7.

Figure 9: Block diagram Ethernet SGMII

Figure 10: Gbit ETH connectors X6, X7

4.3.1.3 QSGMII

In addition to the Ethernet Controller (ENETC), the LS1028A CPU provides a TSN switch (Time-Sensitive Networking Switch)

that operates four external ports via SerDes.

The TSN switch is not routed via the Ethernet controller but via SerDes and is implemented as QSGMII.

The QSGMII interface includes PHY reset and interrupt signals.

When looking at the MBLS1028A from outside, X8 is on the left, X9 is on the right.

Figure 11: Block diagram Ethernet QSGMII

The following table shows the pinout of the Ethernet connectors X8, and X9.

Table 6: Pinout Ethernet QSGMII, RJ-45 connectors X8, X9

RJ-45 X8 X9

Left Right Left Right

Interface P0_MDI P1_MDI P2_MDI P3_MDI

Figure 12: Gbit ETH connectors X8, X9

4.3.2 USB 3.0 Hub

The TI USB 3.0 Hub TUSB8041 connected to the USB 3.0 OTG port (USB2) of the TQMLS1028A provides four USB HOST ports.

Two ports (USB Host1&2) are routed as USB 3.0 interfaces to a stacked connector (X10), the third port is routed as USB 2.0

interface to the mPCIe connector X12, the fourth port is routed as USB 2.0 interface to header X38.

The USB 3.0 Hub TUSB8041 can be programmed via I2C, the address is 0x44 / 100 0100b, see also Table 4.

A power distribution switch provides 5 V for the USB connectors. The current is monitored and can be switched off in case of an

overload and/or overheating.

Figure 13: Block diagram USB 3.0 Hub

The USB host port of the TQMLS1028A provides a theoretical data rate of 5 Gbit/s. This is divided among the connected ports.

Depending on the software and hardware used, the effective read and write rates of the ports may vary.

The following table shows the pinout of the stacked connector X10.

Table 7: Pinout USB Host1&2, USB Type A, X10

Pin Pin name Signal Remark

VBUS_2

V_VBUS_DN2

100 µF to DGND + EMI filter

D–_2

USB_DN2_D–

Common Mode Choke in series

D+_2

USB_DN2_D+

Common Mode Choke in series

GND_2

DGND

–

SSRX–_2

USB_DN2_RX–

Common Mode Choke in series

SSRX+_2

USB_DN2_RX+

Common Mode Choke in series

GND-DRAIN_2

DGND

–

SSTX–_2

USB_DN2_TX–

Common Mode Choke in series + 100 nF AC coupling capacitor

SSTX+_2

USB_DN2_TX+

Common Mode Choke in series + 100 nF AC coupling capacitor

VBUS_1

V_VBUS_DN1

100 µF to DGND + EMI filter

D–_1

USB_DN1_D–

Common Mode Choke in series

D+_1

USB_DN1_D+

Common Mode Choke in series

GND_1

DGND

–

SSRX–_1

USB_DN1_RX–

Common Mode Choke in series

SSRX+_1

USB_DN1_RX+

Common Mode Choke in series

GND-DRAIN_1

DGND

–

SSTX–_1

USB_DN1_TX–

Common Mode Choke in series + 100 nF AC coupling capacitor

SSTX+_1

USB_DN1_TX+

Common Mode Choke in series + 100 nF AC coupling capacitor

M1 … M4

Shield

DGND

–

Table 8: Pinout USB Host3, mPCIe connector, X12

Pin Pin name Signal Remark

D–

USB_DN3_D–

Common Mode Choke in series

D+

USB_DN3_D+

Common Mode Choke in series

Table 9: Pinout USB Host4, 40-pin header, X38

Pin Pin name Signal Remark

D+

USB_DN4_D+

Common Mode Choke in series

D–

USB_DN4_D–

Common Mode Choke in series

4.3.3 USB 3.0 OTG

The LS1028A has two USB3.0 controllers with integrated PHY. USB1 is used as OTG interface.

A USB 3.0 Micro B connector is assembled on the MBLS1028A.

In order to use the interface as Host/Device, a suitable adapter comes with the MBLS1028A.

Figure 14: Block diagram USB

The USB1 port of the TQMLS1028A provides a theoretical data rate of 5 Gbit/s.

Depending on the software and hardware used, the effective read and write rates of the ports may vary.

The following table shows the pinout of USB OTG connector X5.

Table 10: Pinout USB OTG, X5

Pin Pin name Signal I/O Remark

1 VBUS V_VBUS_USB1 P 100 µF to DGND + EMI filter

2 D– USB1_D_M I/O Common Mode Choke in series

3 D+ USB1_D_P I/O Common Mode Choke in series

4 ID USB1_ID I –

5 GND DGND P –

6 SSTX– USB1_TX_M I/O Common Mode Choke in series

7 SSTX+ USB1_TX_P I/O Common Mode Choke in series

8 GND_DRAIN DGND P –

9 SSRX– USB1_RX_M I/O Common Mode Choke in series + 100 nF AC coupling capacitor

10 SSRX+ USB1_RX_P I/O Common Mode Choke in series + 100 nF AC coupling capacitor

M1 … M6 Shield DGND P –

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