NXP Semiconductors S32K344 User manual

S32K344
White Board
Rev. 1.0 — 11 April 2023 User manual
COMPANY PUBLIC
Revision Number Date Changes
Draft 0.6 Dec 2nd , 2020 Initial Version
Draft 0.7 Jan 6th , 2021 Added J86, J87, J88, J89, J90 and SBC debug
description based on SCH-47478 rev B.
Draft 0.8 Feb 1st , 2021 Updated the new board picture of rev B PCB.
Added power on requirement.
Added a few new jumpers and a power switch.
Draft 0.9 Mar 18th , 2021 Updated some detailed descriptions of key features.
1.0 April 7th , 2023 Updated the new BD, deleted the FS26 power up note.
Table 1. Revision history

NXP Semiconductors S32K344
White Board
1 Introduction
This document introduces the key features of S32K344 White Board, which can be used
for various applications evaluation, including Domain Controller, BCM, Gateway, T-box
and so on. The block diagram for S32K344 White Board is shown in below Figure 1
"S32K344 White Board block diagram".
This document illustrates the power supply architecture of the White Board. It also lists
the jumpers configuration, connectors/interfaces, and some MCU PINs assignment on
the board.
Users can read this manual together with the White Board schematics to better
understand the hardware design.
Figure 1. S32K344 White Board block diagram
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2 Features overview
The following figure shows the features of S32K344 White Board. Key features include
the following:
Figure 2. S32K344 White Board features overview
•S32K344 BGA257 secured sample.
•Safety SBC FS26 supplies MCU with 5V, 3.3V, 1.5V and monitors MCU status.
•Ethernet switch SJA1105 and Ethernet phy TJA1101/TJA1102/DP83848C provide 3
channels of automotive ethernet (100BASE-T1) and 1 channel of industrial ethernet
(100BASE-TX).
•CAN/CANFD transceivers TJA1044 and TJA1145 provide 4 channels CAN/CANFD.
•LIN controller SJA1124 and LIN transceiver TJA1124 provide 8 channels of LIN.
•QSPI Flash 128Mb.
•I2C FRAM (fast EEPROM) 256 Kb.
•LF driver and RF receiver for car access applications.
•4 channels high side driver and 8 channels low side driver outputs.
•2 channels USB-to-UART interfaces.
•4 channels general purpose analog and digital inputs.
•12 channels switch-detection inputs through CD1030.
•HB2001 for H-bridge driver.
•Audio Codec SGTL5000 connected to MCU via I2S.
•Accelerometer sensor MMA8452 with I2C interface.
•10 pin SWD debug interface and 20pin JTAG debug interface with TRACE capability.
•IO Headers for external GD3000 EVB to evaluate motor control use cases.
•7 User LEDs, 2 user buttons and 2 ADC potentiometers.
•Touch sense pads.
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3 Connectors and interfaces
The following figure shows the connectors and interfaces of the White Board:
•Four 20-pin connectors J31, J32, J33 and J36 include most general-purpose inputs/
outputs and CAN/LIN interfaces.
•Three automotive ethernet interfaces (100BASE-T1);
•One RJ45 can be connected to PC;
•Two USB-to-UART interfaces are used for printing some debug information in MCU;
•ARDUINO shield connectors can be used for compatible EVB installation (such as
GD3000 EVB);
•Specific connectors for 4G module communication via UART interface;
Figure 3. S32K344 White Board connectors and interfaces
The signals definitions of J32 are listed in the following table:
PIN Label Function PIN Label Function
J32-10 PEPS_TXN5 PEPS antenna J32-20 PEPS_TXN9 PEPS antenna
J32-9 PEPS_TXP5 PEPS antenna J32-19 PEPS_TXP9 PEPS antenna
J32-8 PEPS_TXN3 PEPS antenna J32-18 PEPS_TXN7 PEPS antenna
J32-7 PEPS_TXP3 PEPS antenna J32-17 PEPS_TXP7 PEPS antenna
J32-6 VBAT2 12V power J32-16 NC NC
J32-5 VBAT2 12V power J32-15 NC NC
J32-4 PEPS_TXN1 PEPS antenna J32-14 GND GND
J32-3 PEPS_TXP1 PEPS antenna J32-13 GND GND
J32-2 D_IN_4 PEPS wake up J32-12 HB_OUT1 HB2001 out
Table 2. Signals definitions of J32
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J32-1 D_IN_3 PEPS wake up J32-11 HB_OUT2 HB2001 out
Table 2. Signals definitions of J32...continued
The signals definitions of J33 are listed in the following table:
PIN Label Function PIN Label Function
J33-10 GND GND J33-20 VBAT1 12V power
J33-9 GND GND J33-19 VBAT1 12V power
J33-8 NC NC J33-18 LS_DRV_OUT_
8
Low side output
J33-7 NC NC J33-17 LS_DRV_OUT_
7
Low side output
J33-6 VBAT3 12V power J33-16 LS_DRV_OUT_
6
Low side output
J33-5 VBAT3 12V power J33-15 LS_DRV_OUT_
5
Low side output
J33-4 HS_DRV_OUT4 High side output J33-14 LS_DRV_OUT_
4
Low side output
J33-3 HS_DRV_OUT3 High side output J33-13 LS_DRV_OUT_
3
Low side output
J33-2 HS_DRV_OUT2 High side output J33-12 LS_DRV_OUT_
2
Low side output
J33-1 HS_DRV_OUT1 High side output J33-11 LS_DRV_OUT_
1
Low side output
Table 3. Signals definitions of J33
The signals definitions of J36 are listed in the following table:
PIN Label Function PIN Label Function
J36-10 GND GND J36-20 +5V_OUT2 +5V power
J36-9 ISELED_P ISELED
Interface J36-19 ISELED_N ISELED Interface
J36-8 MSDI_SP5 Switch input J36-18 MSDI_SG5 Switch input
J36-7 MSDI_SP4 Switch input J36-17 MSDI_SG4 Switch input
J36-6 MSDI_SP3 Switch input J36-16 MSDI_SG3 Switch input
J36-5 MSDI_SP2 Switch input J36-15 MSDI_SG2 Switch input
J36-4 MSDI_SP1 Switch input J36-14 MSDI_SG1 Switch input
J36-3 MSDI_SP0 Switch input J36-13 MSDI_SG0 Switch input
J36-2 A_IN_2 ADC input J36-12 D_IN_2 Digital input
J36-1 A_IN_1 ADC input J36-11 D_IN_1 Digital input
Table 4. Signals definitions of J36
The signals definitions of J31 are listed in the following table:
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PIN Label Function PIN Label Function
J31-10 LIN8 LIN interface J31-20 NC NC
J31-9 LIN7 LIN interface J31-19 NC NC
J31-8 LIN6 LIN interface J31-18 CANL_3 TJA1145 CANL
J31-7 LIN5 LIN interface J31-17 CANH_3 TJA1145 CANH
J31-6 LIN4 LIN interface J31-16 CANL_2 TJA1145 CANL
J31-5 LIN3 LIN interface J31-15 CANH_2 TJA1145 CANH
J31-4 LIN2 LIN interface J31-14 CANL_1 TJA1044 CANL
J31-3 LIN1 LIN interface J31-13 CANH_1 TJA1044 CANH
J31-2 GND GND J31-12 CANL_0 TJA1044 CANL
J31-1 KL15_WAKE SBC wake input J31-11 CANH_0 TJA1044 CANH
Table 5. Signals definitions of J31
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4 MCU pins assignments and board resources mapping
The hardware configurations and MCU PINs assignments are listed in below table.
Interface Reference/
Signals
Configuration Description
Power Input VBAT1/2/3 12V 12V power supply input for this board
VCC1_5V0
(VDD_HV_A)
5.0V Some MCU pins are in VDD_HV_A
domain
VCC1_3V3
(VDD_HV_B)
3.3V Some MCU pins are in VDD_HV_B
domain
VREFH_MCU 5.0V ADC reference voltage
VCC_1V5 1.5V MCU Core is supplied by 1.5V from
SBC
V11_MCU 1.1V MCU generated 1.1V
MCU Power
Supply
V25_MCU 2.5V MCU generated 2.5V
BUCK_5V0 5.0V 5V to supply some circuits on the
board
BUCK_3V3 3.3V 3.3V to supply ethernet related circuits
Other Power
Supplies
LDO_1V2 1.2V 1.2V LDO to supply ethernet switch
core
MCU MAC Enabled MCU MAC is connected to ethernet
switch SJA1105 MII_0 in RMII mode
TJA1101 Enabled SJA1105 MII_1
DP83848C Enabled SJA1105 MII_2
Ethernet
TJA1102 Enabled SJA1105 MII_3 and MII_4
PCS0 NCK2910 (RF Receiver)
PCS2 CD1030(MSDI)
PCS3 XS6500(High Side Driver)
PCS4 MC33879 (Low Side Driver)
LPSPI_0
PCS5 HB2001(H-Bridge Driver)
LPSPI_1 PCS0 FS26 (Safety SBC)
LPSPI_2 (3.3V) PCS0 SJA1105 (Ethernet Switch)
PCS0 SJA1124 (LIN Ctrl and Phy)
PCS1 TJA1145 (CAN Phy)
LPSPI_3
PCS3 TJA1145 (CAN Phy)
PCS0 IO HeaderLPSPI_4
PCS1 NJJ29C2 (LF Driver)
SPI
LPSPI_5 PCS0 IO Header
QSPI QSPI_A Enabled QSPI Flash 128Mb
Table 6. White Board resources mapping
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MMA8452 (Accel Sensor, address
0x1D)
SGTL5000 (Audio Codec, address
0x0A)
CS2100 (Clock Multiplier, address
0x4F)
I2C LPI2C0 (3.3V) Enabled
FRAM (Fast EEPROM, address 0x57)
CAN_0 TJA1044_1 PTA7_CAN0_TX, PTA6_CAN0_RX
CAN_1 TJA1044_2 PTA23_CAN1_TX, PTA22_CAN1_RX
CAN_2 TJA1145_1 PTD18_CAN2_TX, PTD19_CAN2_RX
CAN_3 TJA1145_2 PTE28_CAN3_TX, PTE29_CAN3_RX
CAN
CAN_4 IO Header PTG8_CAN4_TX, PTG9_CAN4_RX
LIN1 SJA1124_LIN1
LIN2 SJA1124_LIN2
LIN3 SJA1124_LIN3
LIN4 SJA1124_LIN4
LIN Controller and Phy controlled by
LPSPI3 with PCS0.
LIN5 TJA1124_LIN1 PTF2_LPUART6_TX,
PTF3_LPUART6_RX
LIN6 TJA1124_LIN2 PTF18_LPUART7_TX,
PTF19_LPUART7_RX
LIN7 TJA1124_LIN3 PTF23_LPUART9_TX,
PTF24_LPUART9_RX
LIN
LIN8 TJA1124_LIN4 PTF16_LPUART12_TX,
PTF17_LPUART12_RX
LPUART0 PTA27_LPUART0_TX,
PTA28_LPUART0_RX
LPUART2
CP2104 USB2
UART
PTE12_LPUART2_TX,
PTD17_LPUART2_RX
UART
LPUART1 Ext 4G Module PTB22_LPUART1_TX,
PTB23_LPUART1_RX
Audio SAI0 Enabled SGTL5000 Audio Codec
SW2 PTC20 (high active)Push Buttons
SW3 PTC21 (high active)
POT1 PTB13 (ADC0_S8)ADC POT
POT2 PTB14 (ADC0_S9)
LED D28 PTF8 (high active)
LED D29 PTF9 (high active)
LED D30 PTF10 (high active)
LED D31 PTF11 (high active)
User
Peripherals
User LEDs
LED D44 PTG0 (low active)
Table 6. White Board resources mapping...continued
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LED D45 PTG1 (low active)
LED D46 PTG2 (low active)
SW4 PTC23, PTE10
SW5 PTC24, PTE15
Touch Sense Pad
Slider PTD23, PTA11, PTD24, PTA14
A_IN_1 (0~12V) PTE21_ADC2_P3Analog Inputs
A_IN_2 (0~12V) PTE22_ADC2_P4
D_IN_1 (0~12V) PTC26_ADC0_S21
General
Purpose Inputs
Digital Inputs
D_IN_2 (0~12V) PTE13_ADC1_S19
HS_D1 PTG18_EMIOS2_CH18
HS_D2 PTG19_EMIOS2_CH19
HS_D3 PTG20_EMIOS2_CH20
High Side Output
HS_D4 PTG21_EMIOS2_CH21
LS_DRV_OUT1 Controlled by LPSPI0 with PCS4
LS_DRV_OUT2 Controlled by LPSPI0 with PCS4
LS_DRV_OUT3 Controlled by LPSPI0 with PCS4
LS_DRV_OUT4 Controlled by LPSPI0 with PCS4
LS_DRV_OUT5 PTE20_EMIOS1_CH0
LS_DRV_OUT6 PTE27_EMIOS1_CH7
LS_DRV_OUT7 Controlled by LPSPI0 with PCS4
General
Purpose
Outputs
Low Side Output
LS_DRV_OUT8 Controlled by LPSPI0 with PCS4
JTAG_TMS PTA4
JTAG_TCLK PTC4
JTAG_TDO PTA10
JTAG_TDI PTC5
JTAG
RESET PTA5
TRACE_CLKOUT PTG6
TRACE_D0 PTG7
TRACE_D1 PTG15
TRACE_D2 PTG16
Debug Interface
TRACE
TRACE_D3 PTF31
Table 6. White Board resources mapping...continued
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5 White Board startup
Make sure the jumper J5 is closed and J87 is open so the SBC FS26 can power up in
debug mode. Apply 12V to the power supply input. Turn on the switch SW10. Connect
debugger to the SWD interface and refer to the White Board quick start guide to start the
software development.
The following figure shows the LED indicators for various power supplies on the board.
Figure 4. S32K344 White Board features
The 12V can be applied either through the power jack J3, connector J88 or the connector
pins J33-9,10(GND)/J33-19,20(VBAT). The LEDs indicate the presence of power supply
as following:
•LED D10 – indicates that the 12V is connected to the board correctly;
•LED D11 – indicates that the 5V supply from SBC is ON;
•LED D12 – indicates that the 5V supply from the standalone DC/DC is ON;
•LED D13 – indicates that the 3.3V supply from SBC is ON;
•LED D14 – indicates that the 3.3V supply from standalone DC/DC is ON;
•LED D15 – indicates that the MCU RESET pin is low (MCU in reset status);
The above figure also shows the basic elements to start the White Board:
•12V power input
•10-pin Cortex Debug Connector (SWD/JTAG debug interface)
•20-pin Debug + ETM connector (Debug with trace capability)
•RESET push button and RESET LED indicator
•USB2UART interface
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6 Power supply
The White Board requires an external power supply of 12V/1A, which is fed to the
following devices on the board.
•SBC FS26 – it powers the MCU with 5V (MCU VDD_HV_A domain), 3.3V (MCU
VDD_HV_B domain) and 1.5V (MCU core). See following figure for SBC power supply
topology.
–SBC generates 5V(Tracker1 and Tracker2) to power the CAN phys (optional). The
CAN phys are powered by VCC1_5V0 by default.
•5V buck circuit – it is used as a backup 5V power supply.
•3.3V buck circuit – it powers the ethernet switch and ethernet phy circuits.
–The 3.3V is supplied to the standalone 1.2V LDO, which powers the ethernet switch
core.
•High side driver (XS6500) – it requires 12V to operate correctly.
•LF driver (NJJ29C2) – it requires 12V to operate correctly.
Power supply topology of this board is shown in the following two figures.
Figure 5. SBC power supply topology
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Figure 6. Power supply topology
The MCU has two power domains - VDD_HV_A and VDD_HV_B. On the white
board, VDD_HV_A is supplied with 5V and VDD_HV_B is supplied with 3.3V and
this configuration is fixed on the board. All 5V signals on the MCU are powered by
VDD_HV_A and all 3.3V signals on MCU are powered by VDD_HV_B, so that the use of
voltage level shifters is unnecessary.
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7 Jumper settings
The following jumpers on the board are used for measuring the current consumption of
the corresponding power supply:
Reference Position Description
J6 1-2 Default Closed 12V power input after reverse protection diode
J7 1-2 Default Closed FS26 LDO1 (5V) output current
J89 1-2 Default Closed MCU VDD_HV_A current consumption
J8 1-2 Default Closed Buck 5V output current
J9 1-2 Default Closed FS26 LDO2 (3.3V) output current
J90 1-2 Default Closed MCU VDD_HV_B current consumption
J10 1-2 Default Closed Buck 3.V output current
J11 1-2 Default Closed 1.5V for MCU core
J12 1-2 Default Closed 1.2V for SJA1105 core
J34 1-2 Default Closed 12V power input for high side driver XS6500
J35 1-2 Default Closed 12V power input for LF driver NJJ29C2
J85 1-2 Default Closed 12V power input for FS5600
Table 7. Jumpers for current measurement
Other jumpers on the board are shown in below table:
Reference Position Description
J5
J87
1-2 Default Closed
1-2 Default Open
Enable SBC debug mode, thus watchdog refreshing from
SPI is not needed. J5 should be closed and J87 should be
open for FS26 entering debug mode.
J4 1-2 Default Closed Allow SBC FS0B to disable high/low side driver outputs.
Table 8. Jumpers for VBAT power supply source
The following figure shows the locations of these jumpers on the White Board.
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Figure 7. Jumpers settings topology
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8 General functional description
8.1 MCU HW configuration
8.1.1 MCU power supply configuration
S32K344 has two power domains – VDD_HV_A and VDD_HV_B. They can be supplied
with either 5V or 3.3V. See below figure for PINs distribution for the two domains. The
white board optimizes the PINs assignment to minimize the usage of voltage level
shifters. VDD_HV_A is supplied with 5V and PINs in VDD_HV_A domain are mostly used
for 5V circuits on the board. VDD_HV_B is supplied with 3.3V and PINs in VDD_HV_B
domain are mostly used for 3.3V circuits on the board.
Figure 8. Pins distribution for different power domains
8.1.2 MCU clock settings
MCU can generate 320MHz PLL clock based on 16MHz external crystal. And in low-
power modes, it can use external 32KHz crystal to minimize the power consumption.
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Figure 9. External crystals for MCU
8.1.3 MCU reset control
The MCU RESET pin is bidirectional. When acting as input, MCU can be reset either by
push button “SW1” on the board or SBC RESET signal. When acting as output, some
MCU internal failures (such as watchdog timeout) will pull RESET pin low and SBC can
sense the MCU reset event and react accordingly.
8.1.4 MCU debug interface
The White Board provides two types of debug interface 10-pin connector (SWD/JTAG)
and 20-pin connector (JTAG with ETM). The pins used are listed in below table. JTAG
pins are necessary for debugging the MCU and the TRACE pins are optional.
JTAG_TMS PTA4
JTAG_TCLK PTC4
JTAG_TDO PTA10
JTAG_TDI PTC5
JTAG
RESET PTA5
TRACE_CLKOUT PTG6
TRACE_D0 PTG7
TRACE_D1 PTG15
TRACE_D2 PTG16
TRACE
TRACE_D3 PTF31
Table 9. Debug interface pins
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Figure 10. Debug interface
8.2 SBC features
8.2.1 SBC and MCU connections
The SBC and MCU on the White Board are shown in below figure.
Figure 11. SBC and MCU on the White Board
Connections between SBC and MCU are listed in below table.
SBC MCU
VLDO1 5V VDD_HV_A
VLDO2 3.3V irrelevant VDD_HV_B
VCORE 1.5V V15
SPI (MOSI, MISO, SCLK, CS) LPSPI_1 (SOUT, SIN, SCK, PCS0)
Table 10. SBC and MCU connections
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VDDIO VDD_HV_A
RST PTA5_MCU_RESETB
INT Interrupt input (PTG3)
FCCU1/FCCU2 FCCU_ERR0 / FCCU_ERR1 (PTF16/PTF14)
MUX-OUT ADC2_P7 input (PTE25)
Table 10. SBC and MCU connections...continued
8.2.2 SBC wakeup function
•Wakeup input by external key-on signal (0V to 12V transition on WAKE1).
–Push button SW7 on the board can generate such transitions.
•Wakeup input by LIN phy.
•Wakeup input by CAN phy or Ethernet phy.
8.2.3 SBC fail-safe outputs
SBC will pull FS0B and FS1B low when it detects certain failures, without MCU intervene.
•FS0B – disable high driver outputs (XS6500).
•FS1B – it’s left float and can be routed to customer desired circuit.
FS0B or FS1B assertion is indicated by LED D8 or LED D9 on the White Board. These
two signals can be released by special sequence of SPI commands. Refer to FS26
datasheet for details.
8.2.4 SBC debug mode
Jumper J5 needs to be closed and J87 to be open for the FS26 debug mode when
powering up. In this way the FS26 doesn’t need the watchdog refreshing from the MCU
by SPI.
Figure 12. SBC debug entry circuit
According to FS26 datasheet, the FS26 debug mode is entered if ~4V is detected on
FS26 DEBUG pin when FS26 is powered up. Then the FS26 starts to supply the MCU
when DEBUG pin back to GND. So a 4V pulse is seen during power-up on FS26 DEBUG
pin to enter debug mode.
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8.3 Communication interfaces
8.3.1 Ethernet interfaces
The ethernet switch SJA1105 is used and 4 ethernet interfaces are available on the
board. One of them is 100BASE-TX which can be connected to PC for diagnostics
and test. The other three interfaces are automotive ethernet (100BASE-T1). To meet
SJA1105 current consumption requirements, a 3.3V buck circuit from FS56 and a 1.2V
LDO is used to supply this device.
Figure 13. Ethernet circuit block diagram
Figure 14. Ethernet circuit on the White Board
8.3.2 CAN and LIN interfaces
There are 4 CAN interfaces on this board. The CAN phy TJA1145 is powered from
VBAT 12V and can work in sleep mode with only VBAT kept on. External specified CAN
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messages can wake up TJA1145. MCU configures TJA1145 operation modes by sending
proper SPI commands.
The device SJA1124 is a LIN controller and transceiver. MCU can use one SPI to access
this device and generate 4 channels LIN interfaces. The other 4 LINs are linked to 4
LPUART modules on MCU.
Figure 15. CAN/LIN circuit block diagram
Figure 16. CAN and LIN transceivers on White Board
8.3.3 USB to UART interface
Two USB2UART devices CP2104 are included on the board so that debug message
can be easily transmitted to PC. LPUART0 and LPUART2 of MCU are connected to the
USB2UART interfaces.
Figure 17. CAN/LIN circuit block diagramUSB to UART circuit on the White Board
8.4 General purpose inputs and outputs
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