NXP Semiconductors S32K3X4EVB-Q257 Instructions for use

S32K3X4EVB-Q257
S32K3X4EVBQ257ND
Customer Evaluation Board for S32K3x4 MCUs
Hardware User Manual

NXP Semiconductors
S32K3X4EVB-Q257 | S32K3X4EVBQ257ND HWUM
Hardware User Manual
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REV B –9/2021
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1 Table of contents
1Table of contents.................................................................................................................................................. 2
2Definitions, Acronyms, and Abbreviations........................................................................................................ 3
3Block Diagram...................................................................................................................................................... 4
4Features................................................................................................................................................................ 4
5Default Configuration........................................................................................................................................... 5
6S32K3X4EVB-Q257 and S32K3X4EVBQ257ND - Startup.................................................................................. 7
7Power supply........................................................................................................................................................ 9
7.1 S32K3X4EVB-Q257 - Main Power Supply....................................................................................................... 9
7.2 S32K3X4EVB-Q257 –FS26/Modes Operation.............................................................................................. 10
7.3 S32K3X4EVB-Q257 –+5.0 Volts Power Supply............................................................................................ 11
7.4 S32K3X4EVB-Q257 –+3.3 Volts Power Supply............................................................................................ 12
7.5 S32K3X4EVB-Q257 –VDD_HV_A................................................................................................................ 12
8Programming and Debug Interface................................................................................................................... 17
8.1 RESET Switch and LED indicator .................................................................................................................. 17
8.2 On-board S32K3 Debugger............................................................................................................................ 17
9USB to Serial Interface....................................................................................................................................... 19
10 LIN Interface ....................................................................................................................................................... 21
11 CAN Interface ..................................................................................................................................................... 23
12 Ethernet Interface............................................................................................................................................... 25
13 Ethernet MII/RMII Connector –Pinout.............................................................................................................. 26
14 QSPI-A Configuration ........................................................................................................................................ 28
15 User Peripherals................................................................................................................................................. 29
15.1 GPIO Matrix ................................................................................................................................................... 29
15.2 User LED Indicators....................................................................................................................................... 30
15.3 User Pushbuttons........................................................................................................................................... 30
15.4 ADC Rotary Potentiometers........................................................................................................................... 32
16 Default Jumpers................................................................................................................................................. 33
17 Revision history ................................................................................................................................................. 35
18 Legal Information............................................................................................................................................... 36
18.1 Definitions ...................................................................................................................................................... 36
18.2 Disclaimers..................................................................................................................................................... 36
18.3 Trademarks.................................................................................................................................................... 36

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2 Definitions, Acronyms, and Abbreviations
The following list defines the abbreviations used in this document.
CD Compact Disk
CMOS Complementary Metal Oxide Semiconductor
CPLD Custom Programmed Logic Devices
CPU Central Processing Unit
CSI Camera Sensor Imaging
CSPI Serial Peripheral Interface
DDR Double Data Rate
DIP Dual In-line Package
EEPROM Electrically Erasable Programmable Read Only Memory
EPROM Erasable Programmable Read Only Memory
GPIO General Purpose Input/output
GPO General Purpose Output
I2C Inter-Integrated Circuit
ICE In-Circuit Emulator
I/O Input/output
JTAG Joint Test Access Group
LAN Local Area Network
LCD Liquid Crystal Display
LED Light Emitting Diode
MB Megabyte
MCU Microcontroller Unit
MMC Multi-Media Card
MCP Multi-chip product
MS Memory Stick
NVRAM Non-volatile Random-Access Memory
PC Personal Computer
PCB Printed Circuit Board
PHY Physical interface
POR Power on Reset
PSRAM Pseudo Random Access Memory
PWR Power
PWM Pulse Width Modulation
QVGA Graphics Adapter
RAM Random Access Memory
SD SanDisk (Smart Media)
SDRAM Synchronous Dynamic Random-Access Memory
SI System International (international system of units and measures)
SIMM Single In-Line Memory Module
SPST Single Pole Single Throw
TFT Thin Film Transistor
UART Universal Asynchronous Receiver/Transmitter
USB Universal Serial Bus.
HW Hardware.
POP Populate –Component placed
DNP Do not populate –Component removed

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3 Block Diagram
Figure 1. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –Block diagram
4 Features
IMPORTANT
•Verify and download the last version of this document in http://www.nxp.com
•Before the S32K344 Customer Evaluation board is used or power is applied, please fully read this
user manual. An incorrect configuration in the board may cause a damage irreparable on the
component, MCU or EVB. Power must be removed from the EVB prior to:
- Removing or placing some component or measurement
- Re-configuring the board jumpers

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Figure 2. S32K3X4EVB-Q257 –Features
5 Default Configuration
Table 1. S32K3X4EVB-Q257 - Default Configuration
Interface
S32K3X4
EVB-
Q257
S32K3X4
EVBQ257
ND
Reference / Signal
Configuration
Description/Comment
MCU
Power
Supply
●
●
VDD_HV_A_MCU
+5.0V
The VDDA_HV_A domain is connected
to +5.0V–Switching Power Supply
●
●
VDD_HV_B_MCU
+3.3V
The VDDA_HV_B domain is connected
to +3.3V–Switching Power Supply
●
●
VDD_REFH_MCU
[VDD_HV_A]
The VDD_REFH domain is connected to
VDD_HV_A_MCU
●
●
V15_MCU
External NPN
Transistor
The V15_MCU domain is routed to the
external NPN Ballast Transistor
Ethernet
●
●
J63
MII/RMII
Enabled
Ethernet MII signals are routed to ENET
SABRE connector.

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Interface
S32K3X4
EVB-
Q257
S32K3X4
EVBQ257
ND
Reference / Signal
Configuration
Description/Comment
QSPI-A
Memory
●
●
Enabled
The MCU signals to the QSPI-A Memory
Interface are enabled
Open SDA
●
PTA15
PTA15/LPUART6_RX is routed to
OpenSDA for serial interface
PTA16
PTA16/LPUART6_TX is routed to
OpenSDA for serial interface
USB to Serial
Interface
●
●
PTC26
PTC26/LPUART3_RX is routed to the
USB2UART Interface
PTC27
PTC27/LPUART3_TX is routed to the
USB2UART Interface
CAN
Interface
TJA1153
TJA1043
/CAN0
PTA6
CAN0_RX is routed to CAN Phy0
PTA7
CAN0_TX is routed to CAN Phy0
PTC23
CAN0_ERRN is routed to PTC23 for
CAN Phy0
PTC21
CAN0_EN is routed to PTC21 for CAN
Phy0
PTC20
CAN0_STB is routed to PTC20 for CAN
Phy0
/CAN1
PTE14
CAN4_RX is routed to PTE14 to CAN
Phy1
PTE3
CAN4_TX is routed to PTE3 to CAN
Phy1
PTE8
CAN1_ERRN is routed to PTE8 for CAN
Phy1
PTD15
CAN1_EN is routed to PTD15 for CAN
Phy1
PTD13
CAN1_STB is routed to PTD13 for CAN
Phy1
LIN
Interface
●
●
LIN1
PTB9
LPUART9_RX is routed to LIN Phy0
PTB10
LPUART9_TX is routed to LIN Phy0
LIN2
PTB28
LPUART5_RX is routed to LIN Phy1
PTB27
LPUART5_TX is routed to LIN Phy1
User Push
Buttons
●
●
SW4
PTB26
Active Low, before PTA0
●
●
SW5
PTB19
Active Low, before PTA1
User LEDs
●
●
D32
PTA29
Red
PTA30
Green
PTA31
Blue
●
●
D33
PTB18
Red
PTB25
Green
PTE12
Blue
ADC
Potentio-
meters
●
●
R672
PTA11
ADCPOT0 [R672] is routed to PTA11 -
ADC1_S10
●
●
R679
PTA17
ADCPOT1 [R679] is routed to PTA17 -
ADC2_S19

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6 S32K3X4EVB-Q257 and S32K3X4EVBQ257ND -
Startup
Follow these steps to connect and power on the board
1. Carefully unpack the S32K3X4EVB-Q257 and observe ESD preventive measures while handling the K3 development board.
2. Connect necessary cables between host PC and EVB board prior to applying power to the EVB.
3. The power-ON sequence for the EVB must be as follows:
a)
- The power switch -SW10 must be in OFF position before to the EVB be connected to an external
power supply.
b)
- Once the power switch -SW10 is in OFF position, then the EVB can be connected to an external power
supply.

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c)
- Now the power switch -SW10 can be changed to ON- position.
4. When power is applied to the EVB, three orange LED’s adjacent to the voltage regulators show the presence of the supply
voltages as follows:
•LED D34 Indicates that the 12.0V is connected to the EVB correctly.
•LED D35 Indicates that the 5.0V linear regulator is enabled and working correctly.
•LED D36 Indicates that the +3.3Vlinear regulator is enabled and working correctly.
Figure 3. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –Power supply Input and LED power indicators
If no LED’s are illuminated when power is applied to the EVB and the regulators are correctly enabled using the appropriate
jumpers, it is possible that either power supply is not connected properly, or the voltage level is lower that the specified [+12.0V
to ≥2Amps].
Note that the fuse will not protect against one of the EVB regulators being shorted. If this happens, damage is likely to occur to
the EVB and / or components.
5. The board is ready to use now.

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7 Power supply
The EVB requires an external power supply voltage of between to +12V/≥2A. This allows the EVB to be easily used in a
vehicle if required. The 12v input is on the EVB is used to supply a FS26/SBC –U1, the power management IC controller
provides +5.0V, +3.3V and +1.5V, for the different power configurations of VDD_HV_A, VDD_HV_B, V15 and other
interfaces.
7.1 S32K3X4EVB-Q257 - Main Power Supply
Figure 4. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –Main power supply input
Table 2. Main power supply connectors
Connector
Description
Ground
V+ (+12Volts).
2.1mm Barrel Connector –J3
This connector should be used to connect the supplied wall-plug mains
adapter. Note –if a replacement or alternative adapter is used, caremust be
taken to ensure the 2.1mm plug uses the correct polarization as shown
Ground
V+ (12Volts).
2-Way Screw Type Connector –J5
This can be used to connect a bare wire lead to the EVB, typically from a
laboratory power supply. The polarization of the connectors is clearly marked
on the EVB. Care must be taken to ensure correct connection.

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7.2 S32K3X4EVB-Q257 –FS26/Modes Operation
Figure 5. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –FS26/Modes Operation
Table 3. S32K3X4EVB-Q257 –FS26/Modes Operation
Reference
Jumper Position
Description
Comments
Flash Mode
[Default
configuration]
J686
1-2
The R1961 resistor to VBATP (VBAT
protected +12.0V) is routed as pull-up to the
VDEBUG Pin. This is a common pull-up
resistor for the 2 voltage divider
configurations, with R1971 or R1963.
J685
1-2
The R1963 is selected for the divider
voltage, +8.0V is applied on VDEBUG pin to
set the FS26-SBC on MCU Flash Mode. In
this mode device power up sequence starts
with debug mode enabled and can be used
during customer production process to flash
MCU without need of WD refresh. After
~80ms once the SW10 is in ON-.position the
VDEBUG pin will be switching to a low
voltage (GND) due to the RC delay circuitry
and Q18
Debug
Mode
J686
1-2
The R1961 resistor to VBATP (VBAT
protected +12.0V) is routed as pull-up to the
VDEBUG Pin. This is a common pull-up
resistor for the 2 voltage divider
configurations, with R1971 or R1963.
J685
2-3
The R1963 is selected for the divider
voltage, +5.0V is applied on VDEBUG pin to
set the FS26-SBC on Debug Mode, voltage
must be removed from debug pin in order to
start power up sequence. In this mode
Watchdog refresh is not needed. After
TP281
TPAD
Q18
BC846B
23
1
VBATP_SW
R2022 5.1K
J685
HDR 1X3
SILK = FS26VDBG_SEL
JUMPER(Default) = 1-2
1
2
3
J686
HDR1X2
SILK = FS26VDBG_PU
JUMPER(Default) = 1-2 1
2
C3851
10uF
R1961
10K
D99
MMSZ8V2T1G
AC
R1971
15K
GND
R1968 0
0402
C3847
0.1uF
0402
R1967
100k
R1969
33K
R1963
33K
FS26_VDEBUG
VBATP
FS26_VDEBUGPage[3]

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Reference
Jumper Position
Description
Comments
~80ms once the SW10 is in ON-.position the
VDEBUG pin will be switching to a low
voltage (GND) due to the RC delay circuitry
and Q18.
Normal Mode
J686
OPEN
In this mode the FS26 can enter Normal
mode by configuring the init fs window and
sending properly serviced watchdog refresh
by SPI. Please review the FS26
documentation.
J685
OPEN
All change of jumpers must be done once the EVB is unpowered from J3 and J5 as MANDATORY
7.3 S32K3X4EVB-Q257 –+5.0 Volts Power Supply
Figure 6. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –General jumper for the P5V0 (+5.0V) reference
Table 4. S32K3X4EVB-Q257 –+5.0 Volts Power Supply
Reference
Jumper Position
Description
Comments
J13
1-2
The +5.0V output of the FS26x SBC [FS26_VLDO1] is routed
to the main P5V0 domain (+5.0V for all board).
Default closed
OPEN
P5V0 domain (+5.0V for all board) is isolated/disconnected
from the FS26x
P5V0
J13
HDR1X2
SILK = P5V0
JUMPER(Default) = 1-2 Closed
1
2
TP9
SILK = P5V0
1
5V0 OUTPUT
FS26_VLDO1

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7.4 S32K3X4EVB-Q257 –+3.3 Volts Power Supply
Figure 7. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –General jumper for the P3V3 (+3.3V) reference
Table 5. S32K3X4EVB-Q257 –+.3.3 Volts Power Supply
Reference
Jumper Position
Description
Comments
J20
1-2
The +3.3V Switching power supply is routed to the
main P3V3 domain (+3.3V for all board).
Default closed
OPEN
The +3.3V output of the FS26x SBC is isolated to the
main P3V3 domain (+3.3V for all board).
7.5 S32K3X4EVB-Q257 –VDD_HV_A
Figure 8. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –VDD_HV_A power supply
VDD_HV_A
SENSE
RESISTOR:
0.2 mOhm
R58 1 VDD_HV_A_MCU
R57
0.2 OHM
J23
HDR 1X3
SILK = VDD_HV_A
JUMPER(Default) = 1-2 Closed
1
2
3VDD_HV_A_MCU
J25
HDR1X2
JUMPER(Default) = 1-2 Closed
1 2
J24
HDR 1X3
JUMPER(Default) = 2-3 Closed
1
2
3
P5V0 P3V3
VDD_HV_A

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Table 6. S32K3X4EVB-Q257 –VDD_HV_A
Reference
Jumper Position
Description
Comments
J23
1-2
P5V0 (+5.0V Switching Power Supply) is selected for the
VDD_HV_A_MCU reference
Default
closed
2-3
P3V3_DC_SW (+3.3V Switching Power Supply) is selected
for the VDD_HV_A_MCU reference
OPEN
VDD_HV_A domain is isolated and unpowered
J24
1-2
The shunt resistor R57 [0.2 Ohms] is selected for current
measurement proposals on the VDD_HV_A_MCU reference
2-3
The shunt resistor R58 [1 Ohms] is selected for current
measurement proposals on the VDD_HV_A_MCU reference
Default
closed
OPEN
The shunt resistors R57 and R58 are disabled for current
measurement proposals on the VDD_HV_A_MCU reference
J25
1-2
VDD_HV_A is routed to VDD_HV_A_MCU reference. A
jumper on this position disables the shunt resistors R57 and
R58 are disabled for current measurement proposals.
Default
closed
OPEN
This jumper allows a differential measurement to the shunt
resistor in series for the VDD_HV_A_MCU domain.

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7.5.1 S32K3X4EVB-Q257 –VDD_HV_B
Figure 9. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –Main power supply
Table 7. S32K3X4EVB-Q257 –VDD_HV_B
Reference
Jumper Position
Description
Comments
J30
1-2
P5V0 (+5.0V Switching Power Supply) is selected for the
VDD_HV_B_MCU reference
3-4
P3V3_DC_SW (+3.3V Switching Power Supply) is
selected for the VDD_HV_B_MCU reference
5-6
VDD_HV_A_MCU is routed to VDD_HV_B_MCU
reference
Default closed
OPEN
VDD_HV_B domain is isolated and unpowered
CAUTION - 2 or more connections/jumpers in this header selector is NOT ALLOWED
J29
1-2
The shunt resistor R74 [0.2 Ohms] is selected for current
measurement proposals on the VDD_HV_B_MCU
reference
J29
HDR TH 1X3
1
2
3
J31
HDR 1X2
1 2
P3V3
Jumper Config:
1-2 -- CLOSED
[Default Position]
VDD_HV_B_MCU
P5V0 VDD_HV_B
Jumper Config:
3-4 -- CLOSED
[Default Position]
Jumper Config:
2-3 -- CLOSED
[Default Position]
VDD_HV_B
SENSE
RESISTOR:
0.2 mOhm
J30
SILK = VDD_HV_B
1 2
3 4
65 TP78
VDD_HV_B_MCU
1
C86 0.1uF
0402
R74
0.2 OHM
VDD_HV_B
S32K2XX Secondary I/Os Supply
Voltage Domain
R75
1
VDD_HV_A_MCU
VDD_HV_B_MCU

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2-3
The shunt resistor R75 [1 Ohms] is selected for current
measurement proposals on the VDD_HV_B_MCU
reference
Default closed
OPEN
The shunt resistors R74 and R75 are disabled for current
measurement proposals on the VDD_HV_B_MCU
reference
J31
1-2
VDD_HV_B is routed to VDD_HV_B_MCU reference. A
jumper on this position disables the shunt resistors R74
and R75 are disabled for current measurement
proposals.
Default closed
OPEN
This jumper allows a differential measurement to the
shunt resistor in series for the VDD_HV_B_MCU domain.
7.5.2 S32K3X4EVB-Q257 –VREFH
Figure 10. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –VREFH power supply
Table 8. S32K3X4EVB-Q257 –VREFH
Reference
Jumper Position
Description
Comments
J410
1-2
The VREFH_MCU reference is routed to
the VDD_HV_A_MCU domain.
Default closed
2-3
The VREFH_MCU reference is routed to
the FS26_VREF output domain [+5.0V].
VREH_MCU should not be
connected to a higher voltage
than VDD_HV_A, therefore
J410[1-2] can be placed only
when J23[1-2]
OPEN
The VREFH_MCU is floated/unpowered
VDD_HV_A_MCU TP264
1
FS26_VREF VDD_REFH
J410
HDR 1X3
SILK = VREFH_MCU
JUMPER(Default) = 1-2 Closed
1
2
3

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7.5.3 S32K3X4EVB-Q257 –V15
Figure 11. S32K3X4EVB-Q257 –V15 power supply
Table 9. S32K3X4EVB-Q257 –V15 Domain
Reference
Jumper Position
Description
Comments
J37
1-2
The VDD_HV_A domain is routed to the collector
terminal in order to supply the NPN external Ballast
transistor for the V15_MCU domain.
2-3
The VDD_HV_B domain is routed to the collector
terminal in order to supply the NPN external Ballast
transistor for the V15_MCU domain.
Default
closed
OPEN
The VDD_HV_A and VDD_HV_B domains are isolated
to supply the NPN external Ballast transistor for V15.
J360
1-2
The VDD_HV_A domain is directlyrouted the V15_MCU
domain.
2-3
The FS26_VCORE domain [+1.5V] is directly routed the
V15_MCU domain.
C129
1UF
DNP
GND
C128
0.22UF
0402
VDD_HV_A_MCU
J37
HDR 1X3
V15_NPN
JUMPER(Default) = 2-3Closed
1
2
3
VDD_HV_A_MCU
R94
2.2K J360
HDR_2X3
SILK = V15_SEL
JUMPER(Default) = 5-6Closed
1 2
3 4
65
C127
1UF
V15_MCU
R93 0
0603
FS26_VCORE
C130
2.2uF
TP114
TPAD
VDD_HV_B_MCU
GND
E
BCQ6
BCP56-16TX
1
32
4
C132
0.22UF
DNP
0402
External NPN Ballast
Transistor V15
V15_MCU
S32K3XX External
Supply for V11
Internal Core Logic
Voltage Supply
TP116
TPAD
TP111
TPAD
VRC_CTRL_MCUPage[6]

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S32K3X4EVB-Q257 | S32K3X4EVBQ257ND HWUM
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5-6
The NPN external Ballast transistor is selected to supply
the V15_MCU domain.
Default
closed
OPEN
The V15_MCU domain is disconnected and isolated
from the local external supplies.
8 Programming and Debug Interface
8.1 RESET Switch and LED indicator
The RESET switch [SW2] provides for manual application of the RESET input signal. The S32K3 MCU will drive the RESET signal to
reset the EVB board peripherals. The RESET LED indicator [D22] will be ON for the duration of the RESET signal. This operation indicates
the S32K344 MCU is in the Reset state.
Figure 12. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –RESET Switch
8.2 On-board S32K3 Debugger
The S32K3X4EVB-Q257 [only] incorporates an On-Board Debugger embedded well as JTAG connectors. It bridges serial and debug
communications between a USB host and an embedded target processor.

NXP Semiconductors
S32K3X4EVB-Q257 | S32K3X4EVBQ257ND HWUM
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Figure 13. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –On-board S32K3 Debugger
Table 10. Programming and Debug Connectors
Connector
S32K3X4EVB-Q257
S32K3X4EVBQ257ND
Description
20-Pin Cortex
Debug + ETM
Connector
J50
This small 20-pin (0.05") connector provides access to
SWD, SWV, JTAG, and ETM (4-bit) signals available on a
Cortex-M3/M4/M7 device.
A 20-pin header (Samtec FTSH-110-01) is specified with
dimensions:
0.50" x 0.188" (12.70 mm x 4.78 mm).
NOTE - JTAG –TRACE Signals
Due that the MCU ports used for the trace signals also are
shared with other interfaces. It is important to isolate these
signals/interfaces for the J4-Cortex Debug D ETM
connector.
SIGNAL NAME
MCU
PORT
COMMENT
TRACE_CLK
PTB9
TRACE_D0
PTB8
TRACE_D1
PTE2
TRACE_D2
PTA14
TRACE_D3
PTA13
10-Pin Cortex
Debug
Connector
J52
The Cortex Debug Connector provides support for Serial
Wire and JTAG interface modes in a very small, low cost
10-pin (0.05") connector. This new style connector provides
access to all SWD, SWV, and JTAG signals available on a
Cortex-Mx device.
A 10-pin header (Samtec FTSH-105-01) is specified with
these dimensions:
0.25" x 0.188" (6.35 mm x 4.78 mm).

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9 USB to Serial Interface
The EVB incorporates an interface providing a serial connectivity via a direct USB connection between the PC and the EVB. The circuit
contains an FTDI FT2232D USB to Serial interface which should automatically install the drivers for 2 additional COM ports on your PC.
Note that only one of these is used so you will need to try both. For more information on the USB drivers and general fault finding, consult
the FTDI website at http://www.ftdichip.com/
Figure 14. S32K3X4EVB-Q257 | S32K3X4EVBQ257ND –USB to Serial Interface
The PTC27 MCU port (LPUART13_TX) and PTC26 MCU port (LPUART13_RX) signals are routed to the FTDI transceiver via zero ohms
resistors allowing the transceiver to be isolated from the MCU pin if desired. The default configuration is with the zero ohms resistors,
routing the TX and RX signals from the MCU to the FTDI transceiver.
38-Pin ARM
ETM Mictor
Connector
P1
The Mictor (Matched Impedance Connector) has been the
standard way to connect a trace probe to an ARM target. It
supports up to 32-bit ETM trace and is really intended for
use with very high-speed ARM processors such as Cortex-
R4 and Cortex-A9. Cortex-M7 supports 16-bit data trace
using the Mictor connector. This is only available with DS-5
using a DSTREAM debug and trace unit.
20-Pin ARM
Standard
JTAG
Connector
J365
The ARM standard JTAG connector has been used for
many years in systems with ARM processors.
It supports the JTAG interface for accessing ARM7 and
ARM9 based devices. For Cortex-Mx devices, it supports
Serial Wire and JTAG interfaces for accessing all SWD,
SWV, and JTAG signals available on a Cortex-Mx device.
The header (e.g. a Samtec: TST-110-01-L-D) is a 20-Pin,
0.10" (2.54 mm)pitch connector with these dimensions: 1.3"
x 0.365" (33 mm x 9.27mm).

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Table 11. USB to serial interface - Control Jumpers
Signal
/Module
MCU
Port
Reference
Description
Comment
1
LPUART13_RX
PTC26
R303
LPUART13_RX signal is routed to FTDI
interface
Default configuración
LPUART13_TX
PTC27
R309
LPUART13_TX signal is routed to FTDI
interface
Default configuración
2
LPUART6_RX
PTA15
R302
LPUART6_RX signal is routed to FTDI
interface
LPUART6_TX
PTA16
R308
LPUART6_TX signal is routed to FTDI
interface
1. If the user want use or change to LPUART6 RX/TX, then:
•R303 and R309 must be removed.
•R302-0603-0ohms and R308-0603-0ohms must be populated
2. If the user wants to use other LPUARTx RX/TX module of the MCU, the user can have access to the
USB to serial interface by the J677 header. For this use case R302, R303, R308 and R309 must be
removed.
•For a LPUARTx RX/TX module under the domain voltage VDD_HV_A, the R293 must be
populated and R294 must be removed.
•For a LPUARTx RX/TX module under the domain voltage VDD_HV_B, the R294 must be
populated and R293 must be removed.
The USB to Serial UART interface in the EVB has two options to configure.
•USB Bus powered configuration.
•USB Self powered Configuration.
USB Bus Powered Configuration (Default Configuration).
The USB Bus Powered device gets its power from the USB bus. Basic rules for USB Bus power devices are as follows:
▪On plug-in, the device must draw no more than 100mA
▪On USB Suspend the device must draw no more than 500μA.
▪A High-Power USB Bus Powered Device (one that draws more than 100mA) should use the PWREN# pin to keep
the current below 100mA on plug-in and 500μA on USB suspend.
▪A device that consumes more than 100mA cannot be plugged into a USB Bus Powered Hub.
▪No device can draw more that 500mA from the USB Bus.
USB Self Powered Configuration.
A USB Self Powered configuration gets its power from its own POWER SUPPLY and does not draw current from the USB bus. The basic
rules for USB Self power devices are as follows.
▪A Self-Powered device should not force current down the USB bus when the USB Host or Hub Controller is powered
down.
▪A Self Powered Device can take as much current as it likes during normal operation and USB suspend as it has its
own POWER SUPPLY.
▪A Self Powered Device can be used with any USB Host and both Bus and Self Powered USB Hubs.