Fibocom L610 MiniPCIe Series Installation instructions

Draft
FIBOCOM L610 Series
Hardware Guide
Version: V1.2.0
Date: 2021-08-31

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FIBOCOM L610 Series Hardware Guide Page 2 of 59
Applicability Type
No.
Product Model
Description
1
L610-CN-00
MAIN_ANT, FDD/TDD/GSM, NO WIFI-Scan, BT
2
L610-CN-01
MAIN_ANT, FDD/GSM, NO WIFI-Scan, BT
3
L610-CN-02
MAIN_ANT, FDD/TDD/GSM, Optional support WIFI-Scan, BT,
Optional support WIFI_ANT
4
L610-CN-03
MAIN_ANT, FDD/TDD/GSM, Support WIFI-Scan, BT, WIFI_ANT
5
L610-CN-21
MAIN_ANT, FDD/GSM, NO WIFI-Scan, BT
6
L610-CN-05
MAIN_ANT, FDD/TDD/GSM, NO WIFI-Scan, BT, For electric power
project, note that the two firmware supports UART1 and UART3,
respectively
7
L610-EU-00
MAIN_ANT, FDD/TDD/GSM, WIFI-Scan, BT
8
L610-EU-01
MAIN_ANT, FDD/TDD/GSM, WIFI-Scan, BT
9
L610-LA-00
MAIN_ANT, FDD/TDD/GSM, WIFI-Scan, BT
10
L610-CN-10
MAIN_ANT, FDD/TDD, NO WIFI-Scan, BT
11
L610-CN-31
MAIN_ANT, FDD/TDD, GNSS, NO WIFI-Scan, BT
12
L610-CN-32
MAIN_ANT, FDD/TDD, GNSS, Optional support WIFI-Scan, BT
13
L610-CN-20
MAIN_ANT, TDD, NO GNSS, WIFI-Scan, BT
14
L610-CN-12
MAIN_ANT, FDD/TDD, Optional support WIFI-Scan, BT
15
L610-CN-13
MAIN_ANT, FDD/TDD, WIFI-Scan, BT
16
L610-CN-60
MAIN_ANT, FDD/TDD/GSM, NO WIFI-Scan, BT
17
L610-CN-62
MAIN_ANT, FDD/TDD/GSM, Optional support WIFI-Scan, BT

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FIBOCOM L610 Series Hardware Guide Page 3 of 59
Copyright
Copyright ©2021 Fibocom Wireless Inc. All rights reserved.
Without the prior written permission of the copyright holder, any company or individual is prohibited to
excerpt, copy any part of or the entire document, or transmit the document in any form.
Notice
The document is subject to update from time to time owing to the product version upgrade or other
reasons. Unless otherwise specified, the document only serves as the user guide.All the statements,
information and suggestions contained in the document do not constitute any explicit or implicit
guarantee.
Trademark
The trademark is registered and owned by Fibocom Wireless Inc.

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FIBOCOM L610 Series Hardware Guide Page 4 of 59
Change History
Version
Author
Assessor
Approver
Update
date
Description
V1.2.0
Zhao
Meiqing
Wang Liuxia
Jin Haibo
2021-08-31
Added NEW models, Modify
operating voltage range.
V1.1.9
Zhao
Meiqing
Wang Liuxia
Wang Bo
Chen
Guojiang
2021-06-22
Modify operating voltage range;
add USB_BOOT interface
description; modify data transfer
rate
V1.1.8
Zhao
Meiqing
Wang Bo
Wang
Yuanguang
Liu Ke
2021-04-22
Added NEW models,
RF related index modification,
Modified Pin Distribution
Diagram
V1.1.7
Ma
Menghan
Ma
Menghan
Luo Qin
2020-12-30
Standardized the document
format, corrected errors found in
the document, including
grammar, spelling, etc., and
optimized the sentence
structure.
V1.1.6
Wang
Yuanguang
Wang Bo
Jin Haibo
Liu Ke
2020-11-25
Added GNSS indicator
V1.1.5
Wang
Yuanguang
Wang Bo
Jin Haibo
Liu Ke
2020-09-22
Added NEW models
Modified some issues
V1.1.4
Wang
Yuanguang
Wang
Hailiang Ma
Menghan
Liu Ke
2020-07-30
Added NEW models
Modified some issues
V1.1.3
Wang
Yuanguang
Wang
Hailiang Ma
Menghan
Liu Ke
2020-06-28
Modified Pin Description
Added chapter 2.4
V1.1.2
Wang
Yuanguang
Wang
Hailiang Ma
Menghan
Liu Ke
2020-06-16
Standardized format
V1.1.1
Wang
Yuanguang
Wang Bo
Liu Ke
2020-05-29
Add ADC accuracy, Added NEW
models

Draft
Version
Author
Assessor
Approver
Update
date
Description
V1.0.0
Wang
Yuanguang
Wang Bo
Liu Ke
2019-11-21
Initial version

Draft
Contents
1Foreword....................................................................................................................... 9
1.1 Introduction...................................................................................................................9
1.2 Safety Instructions........................................................................................................9
1.3 Reference Standards..................................................................................................10
1.4 Related Documents....................................................................................................10
2Product Overview....................................................................................................... 10
2.1 Product Introduction ...................................................................................................10
2.2 Product Specifications ................................................................................................12
2.3 Hardware Diagram .....................................................................................................13
2.4 Working Mode ............................................................................................................14
Mode............................................................................................................................................14
3Application Interface.................................................................................................. 15
3.1 LCC+LGA Interface ....................................................................................................15
3.1.1 Pin Distribution..............................................................................................................15
3.1.2 Pin Definition.................................................................................................................16
3.1.3 Pin Multiplexing.............................................................................................................27
3.2 Power Supply.............................................................................................................27
3.2.1 Power Supply................................................................................................................27
3.2.2 1.8V Output...................................................................................................................29
3.2.3 Power Consumption......................................................................................................29
3.3 Control Signal.............................................................................................................30
3.3.1 Module Power-on..........................................................................................................31
3.3.1.1 Power-on Circuit Reference.......................................................................................................31
3.3.1.2 Power-on Timing........................................................................................................................32
3.3.1.3 Auto Power-on...........................................................................................................................32
3.3.2 Module Shutdown .........................................................................................................32
3.3.2.1 Shutdown Timing.......................................................................................................................33
3.3.3 Module Reset................................................................................................................33
3.3.3.1 Reset Circuit..............................................................................................................................33
3.3.3.2 RESET_N Control Timing..........................................................................................................34
3.4 USB Interface.............................................................................................................35
3.4.1 USB Interface Definition................................................................................................35

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FIBOCOM L610 Series Hardware Guide Page 7 of 59
3.5 USIM Interface ...........................................................................................................36
3.5.1 USIM Pin.......................................................................................................................36
3.5.2 USIM Interface Circuit................................................................................................... 36
3.5.2.1 SIM Card Slot with Detection Signal..........................................................................................36
3.5.2.2 SIM Card Slot Without Detection Signal....................................................................................38
3.5.3 USIM Hot Plug ..............................................................................................................38
3.5.4 USIM Design Requirements .........................................................................................39
3.6 UART Interface...........................................................................................................39
3.6.1 UART Interface Definition .............................................................................................39
3.6.2 UART Interface Application...........................................................................................40
3.7 Status Indicator...........................................................................................................41
3.7.1 NET_MODE Signal.......................................................................................................41
3.8 Low Power Consumption Mode..................................................................................42
3.8.1 Flight Mode....................................................................................................................42
3.8.2 Sleep Mode...................................................................................................................43
3.9 ADC Function.............................................................................................................43
3.10 Analog Audio Interface ...............................................................................................43
3.10.1 Support model...............................................................................................................43
3.10.2 Analog Audio Interface Define......................................................................................44
3.10.3 Preventing TDD and Other Noises ...............................................................................44
3.10.4 Microphone Interface Circuit......................................................................................... 45
3.10.5 Receiver Interface Circuit..............................................................................................46
3.11 USB_BOOT Interface.................................................................................................47
4RF Interface................................................................................................................. 48
4.1 L610 Operating Band .................................................................................................48
4.2 L610 RF Output Power...............................................................................................48
4.3 L610 RF Receiving Sensitivity....................................................................................49
4.4 RF PCB Design..........................................................................................................50
4.4.1 Antenna RF Connector .................................................................................................50
4.5 WIFI/BT......................................................................................................................52
4.6 GNSS.........................................................................................................................52
4.7 Antenna Design..........................................................................................................53
5Electrical Characteristics .......................................................................................... 55
5.1 Limiting Voltage Range...............................................................................................55

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FIBOCOM L610 Series Hardware Guide Page 8 of 59
5.2 Ambient Temperature Range......................................................................................55
5.3 Electrical Characteristics of the Interface in Operating Status.....................................55
5.4 Environmental Reliability Requirements......................................................................56
5.5 ESD Characteristics ...................................................................................................56
6Structure Specification.............................................................................................. 57
6.1 Product Appearance...................................................................................................57
6.2 Structural Dimensions.................................................................................................58
6.3 SMT Patch..................................................................................................................59

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FIBOCOM L610 Series Hardware Guide Page 9 of 59
1 Foreword
1.1 Introduction
The document describes the electrical characteristics, RF performance, dimensions and application
environment, etc. of L610 wireless modules. With the assistance of the document and other instructions,
the developers can quickly understand the hardware functions of L610 modules and develop product
hardware.
1.2 Safety Instructions
By following the safety guidelines below, you can ensure your personal safety and help protect the
product and work environment from potential damage. Product manufacturers need to communicate the
following safety instructions to end users. In case of failure to comply with these safety rules, Fibocom will
not be responsible for the consequences caused by the user’s misuse.
Road safety first! When you drive, do not use the handheld devices even if it has a
hand-free feature. Please stop and call.
Please turn off the mobile device before boarding. The wireless feature of the
mobile device is not allowed on the aircraft to prevent interference with the aircraft
communication system. Ignoring this note may result in flight safety issue or even
violate the law.
When in a hospital or health care facility, please be aware of restrictions on the use
of mobile devices. Radio frequency interference may cause medical equipment to
malfunction, so it may be necessary to turn off the mobile device.
The mobile device does not guarantee that an effective connection can be made
under any circumstances, for example, when there is no prepayment for the mobile
device or the (U)SIM is invalid. When you encounter the above situation in an
emergency, remember to use an emergency call, while keeping your device turned
on and in areas where signal is strong.
Your mobile device receives and transmits RF signals when it is powered on.
Radio interference occurs when it is near televisions, radios, computers, or other
electronic devices.

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FIBOCOM L610 Series Hardware Guide Page 10 of 59
Keep the mobile device away from flammable gases. Turn off the mobile device
when you get near to gas stations, oil depots, chemical plants or explosive
workplaces. There are potential safety hazards when operating electronic
equipment in any potentially explosive area.
1.3 Reference Standards
This design of the product complies with the following standards:
3GPPTS 51.010-1 V10.5.0: Mobile Station (MS) conformance specification; Part 1: Conformance
specification
3GPPTS 36.521-1 V10.6.0: User Equipment (UE) conformance specification; Radio transmission
and reception; Part 1: Conformance testing
3GPPTS 21.111 V10.0.0: USIM and IC card requirements
3GPPTS 51.011 V4.15.0: Specification of the Subscriber Identity Module -Mobile Equipment
(SIM-ME) interface
3GPPTS 31.102 V10.11.0: Characteristics of the Universal Subscriber Identity Module (USIM)
application
3GPPTS 31.11 V10.16.0: Universal Subscriber Identity Module (USIM) Application Toolkit (USAT)
3GPPTS 36.124 V10.3.0: Electro Magnetic Compatibility (EMC) requirements for mobile terminals
and ancillary equipment
3GPPTS 27.007 V10.0.8:AT command set for User Equipment (UE)
3GPPTS 27.005 V10.0.1: Use of Data Terminal Equipment - Data Circuit terminating Equipment
(DTE - DCE) interface for Short Message Service (SMS) and Cell Broadcast Service (CBS)
1.4 Related Documents
FIBOCOM EVK-GT8230-NL User Guide
FIBOCOM ADP-L610 User Guide
FIBOCOM L610 Series SMT Design Guide
FIBOCOM Design Guide_RF Antenna
FIBOCOM L610 Series AT Commands
2 Product Overview
2.1 Product Introduction
L610 modules are wideband wireless terminal products applicable to various network formats and
multi-bands including TDD-LTE/FDD-LTE/GSM.
The frequency band division of L610 series products is as follows:

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FIBOCOM L610 Series Hardware Guide Page 11 of 59
Item
L610-CN-00
L610-CN-01
L610-CN-02
L610-CN-03
L610-CN-21
LTE
FDD
Band 1, 3, 5, 8
Band 1, 3, 5, 8
Band 1, 3, 5, 8
Band 1, 3, 5, 7, 8
Band 1, 3, 5, 8
LTE
TDD
Band 34, 38,
39, 40, 41
Not support
Band 34, 38, 39,
40, 41
Band 38, 40, 41
Not support
GSM
900/1800
MHz
900/1800 MHz
900/1800 MHz
900/1800 MHz
900/1800
MHz
ANT
Main
Main
Main, optional
support for WIFI
Main+WIFI
Main
Built-in
ESIM
Not support
Not support
Not support
Not support
Support
Item
L610-CN-05
L610-EU-00
L610-EU-01
L610-LA-00
L610-CN-10
LTE
FDD
Band 1, 3, 5, 8
Band 1, 3, 7, 8,
20, 28
Band 1, 3, 7, 8, 20
Band 1, 2, 3, 4, 5,
7, 8, 28, 66
Band 1, 3, 5, 8
LTE
TDD
Band 34, 38,
39, 40, 41
Not support
Not support
Not support
Band 34, 39,
40, 41
GSM
900/1800
900/1800
900/1800
850/900/1800/1900
Not support
ANT
Main
Main+WIFI
Main+WIFI
Main+WIFI
Main
Built-in
ESIM
Not support
Not support
Not support
Not support
Not support
Item
L610-CN-20
L610-CN-31
L610-CN-32
L610-CN-12
L610-CN-13
LTE
FDD
No support
Band 1, 3, 5, 8
Band 1, 3, 5, 8
Band 1, 3, 5, 8
Band 1, 3, 5, 8
LTE
TDD
Band 34, 38,
39, 40, 41
Band 34, 38,
39, 40, 41
Band 34, 38, 39,
40, 41
Band 34, 38, 39,
40, 41
Band 34, 38,
39, 40, 41
GSM
Not Support
Not Support
Not Support
Not Support
Not Support
ANT
Main
Main+GNSS
Main+GNSS,
optional support
for WIFI
Main, optional
support for WIFI
Main+WIFI
Built-in
ESIM
Not support
Not support
Not support
Not support
Not support

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FIBOCOM L610 Series Hardware Guide Page 12 of 59
Item
L610-CN-60
L610-CN-62
LTE
FDD
Band 1, 3, 5, 8
Band 1, 3, 5, 8
LTE
TDD
Band 34, 38,
39, 40, 41
Band 34, 38,
39, 40, 41
GSM
900/1800
900/1800
ANT
Main
Main, optional
support for
WIFI
Built-in
ESIM
Not support
Not support
Band 41 of L610-CN-10/12/13/20/31/32/60/62 is 2496 to 2690 MHz;
Band 41(100M) of other models is 2555 to 2655 MHz.
2.2 Product Specifications
Specifications
Operating band
Please refer chapter 2.1
Data
transmission
LTE FDD Rel.13
10.3Mbps DL/5.1Mbps UL
LTE TDD Rel.13
9.1Mbps DL/3.1Mbps UL
GPRS
GPRS: 85.6Kbps DL/85.6Kbps UL (multi-slot class 12)
Power supply
3.4V to 4.3V (3.8V is recommended)
Temperature
Normal operation: -30°C to +75°C
Extended operation: -40°C to +85°C
Storage: -40°C to +90°C
Power
consumption
Sleep mode: 2.2 mA
Physical
characteristics
Package: LCC 80PIN+LGA 64PIN
Size: 31×28×2.35 mm
Weight: about 5.5g
Interface
Antenna
Antenna: MAIN Antenna, WIFI-Scan & BT Antenna (Partial model support),
GNSS Antenna (Partial model support)

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FIBOCOM L610 Series Hardware Guide Page 13 of 59
Function
interface
USIM 3.0V/1.8V
UART: 3 ports for standard module, and 4 ports for OpenCPU module
USB 2.0 x 1
System status indication
ADC x 3, I2C, SPI, SDIO x 2, I2S, PWM, MIC/SPK
Software
Protocol stack
Embedded TCP/IP and UDP/IP protocol stack
AT command
3GPP TS 27.007 and 27.005, and proprietary FIBOCOM AT
Firmware update
USB
Voice service
AMR, caller ID, call forwarding, call hold, call waiting and multi-party call, etc.
SMS service
Point-to-point MO, MT, cell broadcast, Text and PDU modes
Note:
Working temperature: when the module works in this temperature range, each function of the
module is normal, and the relevant performance meets the requirements of 3GPP standard.
Extended temperature: when the module works in this temperature range, all functions of the
module are normal and unrecoverable faults will not occur. The relevant performance of the
module may exceed the requirements of the 3GPP standard.When the temperature returns to the
normal operating temperature range, the module performance can still meet the 3GPP standard.
2.3 Hardware Diagram
Figure 2-2 hardware diagram shows the main hardware features of L610 module, including baseband and
RF features.
Baseband includes:
UART, SIM, PCM, I2C, SPI, SDIO,ADC, KEY
RF includes:
Antenna

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FIBOCOM L610 Series Hardware Guide Page 14 of 59
Module
SIM USB
Power
Supply
VIO_1V8
ON/OFF#
RESET#
Control
EINT Indicator
Host application
UART
Main ANT
Main ANT
SIM
Card
WIFI ANT
WIFI ANT
SPI
SPI
I2C
I2C
GPIO
GPIO
PCM
PCM
Figure 2-2 Hardware diagram
2.4 Working Mode
Mode
Description
Idle
The module is registered on the network and in standby mode without data transmission.
Talk/Data
The module is connected to the network and is in working state with voice calling or data
transmission.
Airplane
The RF part of the module does not work, and only the baseband part works, which is
equivalent to the function of ordinary MCU.

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FIBOCOM L610 Series Hardware Guide Page 15 of 59
3 Application Interface
3.1 LCC+LGA Interface
L610 modules adopt LCC 80PIN+LGA 64PIN packaging, with a total of 144 pins.
3.1.1 Pin Distribution
Figure 3-1 Pin Distribution diagram (TOP plan perspective view)
Note:
“85-->112” is the thermal pin, and the module is grounded internally. It is recommended that the

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FIBOCOM L610 Series Hardware Guide Page 16 of 59
heat sink pad is reserved for PCB packaging and welded.
3.1.2 Pin Definition
The pins are defined as follows:
Pin
Pin Name
I/O
Level
Reset
Value
Description
1
WAKEUP_IN
I
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
L
External device wake-up module
Left floating when not in use
2
AP_READY
I
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
H
The module detects whether the host
is sleeping
Left floating when not in use
3
SLEEP_IND
O
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
SLEEP_IND
Sleep mode indication
Left floating when not in use
4
W_DISABLE#
I
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
L
Module flight mode control
Left floating when not in use
5
NET_MODE
O
VOHmin=1.35V
VOLmax=0.45V
L
Module network status indication
(Default)
Left floating when not in use
6
NET_STATUS
O
VOHmin=1.35V
VOLmax=0.45V
L
Module network status indication
Left floating when not in use
7
VDD_EXT
PO
1.8V
-
Module digital level, 1.8V output
Left floating when not in use
8
GND
G
-
-
Ground
9
GND
G
-
-
Ground
10
USIM_GND
G
-
-
Ground
11
DBG_RXD
I
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
-
DEBUG serial port Receive
Left floating when not in use

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FIBOCOM L610 Series Hardware Guide Page 17 of 59
Pin
Pin Name
I/O
Level
Reset
Value
Description
12
DBG_TXD
O
VOLmax=0.45V
VOHmin=1.35V
-
DEBUG serial port Transmit
Left floating when not in use
13
USIM_PRESENCE
I
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
USIM hot plug detection; no need to
connect 10k resistance to Ground in
series; software shutdown detection
function
14
USIM_VDD
PO
For 1.8V USIM:
Vmax=1.9V
Vmin=1.7V
For 3.0V USIM:
Vmax=3.05V
Vmin=2.7V
I/Omax=50mA
-
USIM power supply
15
USIM_DATA
I/O
For 1.8V USIM:
VILmax=0.6V
VIHmin=1.2V
VOLmax=0.45V
VOHmin=1.35V
For 3.0V USIM:
VILmax=1.0V
VIHmin=1.95V
VOLmax=0.45V
VOHmin=2.55V
-
USIM data signal cable
16
USIM_CLK
O
For 1.8V USIM:
VOLmax=0.45V
VOHmin=1.35V
For3.0V USIM:
VOLmax=0.45V
VOHmin=2.55V
-
USIM clock signal cable
17
USIM_RST
O
For 1.8V USIM:
VOLmax=0.45V
-
USIM reset signal cable

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FIBOCOM L610 Series Hardware Guide Page 18 of 59
Pin
Pin Name
I/O
Level
Reset
Value
Description
VOHmin=1.35V
For 3.0V USIM:
VOLmax=0.45V
VOHmin=2.55V
18
NC
-
-
-
NC
19
GND
G
-
-
Ground
20
RESET_N
I
VIHmax=VBAT
VILmax=0.5V
-
Module reset signal, active low
21
PWRKEY
I
VIHmax=VBAT
VILmax=0.5V
-
Module power-on/power-off, active
low
22
GND
G
-
-
Ground
23
SD_DET
I
-
-
SD detection
Left floating when not in use
24
PCM_IN
I
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
PCM data input
Left floating when not in use
25
PCM_OUT
O
VOLmax=0.45V
VOHmin=1.35V
L
PCM data output
Left floating when not in use
26
PCM_SYNC
I/O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
PCM data synchronization signal
Left floating when not in use
27
PCM_CLK
I/O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
L
PCM clock
Left floating when not in use

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FIBOCOM L610 Series Hardware Guide Page 19 of 59
Pin
Pin Name
I/O
Level
Reset
Value
Description
VIHmin=1.2V
VIHmax=2.0V
28
SDC2_DATA_3
I/O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
H
SDC2_DATA_3
Left floating when not in use
29
SDC2_DATA_2
I/O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
H
SDC2_DATA_2
Left floating when not in use
30
SDC2_DATA_1
I/O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
H
SDC2_DATA_1
Left floating when not in use
31
SDC2_DATA_0
I/O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
H
SDC2_DATA_0
Left floating when not in use
32
SDC2_CLK
O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V
-
SDC2_CLK
Left floating when not in use
33
SDC2_CMD
O
VILmin=-0.3V
VILmax=0.63V
VIHmin=1.2/2.2V
VIHmax=2.0/3.2V*
H
SDC2_CMD
Left floating when not in use
34
VDD_SDIO
PO
-
-
VDD_SDIO
35
ANT_WIFI
I
-
-
WIFI antenna, Sharing with Bluetooth
antenna,
Left floating when not in use, cannot
use simultaneously
36
GND
G
-
-
Ground
37
SPI_CS_N
O
VOLmax=0.45V
VOHmin=1.35V
-
SPI_CS_N
Left floating when not in use

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FIBOCOM L610 Series Hardware Guide Page 20 of 59
Pin
Pin Name
I/O
Level
Reset
Value
Description
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
38
SPI_MOSI
O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
SPI_MOSI
Left floating when not in use
39
SPI_MISO
I
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
SPI_MISO
Left floating when not in use
40
SPI_CLK
O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
L
SPI_CLK
Left floating when not in use
41
I2C_SCL
I/O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
VILmax=0.6V
VIHmin=1.2V
VIHmax=2.0V
H
I2C interface clock signal
Left floating when not in use
42
I2C_SDA
I/O
VOLmax=0.45V
VOHmin=1.35V
VILmin=-0.3V
H
I2C interface data signal
Left floating when not in use