STMicroelectronics L6364W User manual

Introduction
The STEVAL-IOD04KT1 is a reference design kit that exploits the features of the L6364W IO-Link dual-channel device
transceiver.
The kit consists of the STEVAL-IOD004V1 main board (not available for sale), the STLINK-V3MINI programmer and debugger
tool, a 14-pin flat cable, and an M8 to M12 standard industrial connector adapter.
The kit acts as a modern smart industrial sensor to be connected to a master IO-Link hub (or a suitable PLC interface).
The power supply for the MCU, sensors, and other logic devices derives from the DC-DC converter controller embedded in the
L6364W.
The on-board STM32G071EB microcontroller runs an IO-Link demo stack v.1.1, which controls the IO-Link communication, and
the software code that manages the L6364W transceiver and the MEMS industrial sensors.
The tiny dimensions of the main board have been achieved thanks to the small sizes of the CSP package options of L6364W
and STM32G071EB.
Connect the main board to an IO-Link master via the adapter and the M8 connector included in the kit for normal operation.
Connect the same board to the STLINK-V3MINI through the flat cable only if you want to program the STM32G071EB with a
new firmware.
Figure 1. STEVAL-IOD04KT1 evaluation kit
Getting started with the industrial smart sensor kit based on L6364W dual IO-Link
device transceiver
UM2942
User manual
UM2942 - Rev 1 - October 2021
For further information contact your local STMicroelectronics sales office. www.st.com

1Getting started
1.1 Features
• Kit content:
– STEVAL-IOD004V1 (45.8 x 8.3 mm) main board with shape easy to be integrated in industrial sensors
housing (not available for separate sale)
–STLINK-V3MINI programmer and debugger tool
– M8-M12 industrial connector adapter including a 20 cm cable
– 14-pin flat cable
• Main board features:
– Industrial sensor node based on STM32G071EB (mainstream Arm® Cortex®-M0+ RISC core MCU
operating at up to 64 MHz frequency), L6364W (dual channel transceiver IC for SIO and IO-Link
sensor applications), IIS2MDC (high accuracy, ultra-low-power, 3-axis digital output magnetometer)
and ISM330DHCX (iNEMO inertial module with machine learning core, and finite state machine with
digital output for industrial applications)
– Runs an IO-Link v.1.1 demo-stack and MEMS control software, included in the companion package
STSW-IOD04K together with the IODD file
– Operating voltage range 7 to 32 V
– Four-pole M8 industrial standard connector
–L6364W embedded DC-DC converter provides 3.3 V supply for all on-board ICs
– General-purpose LEDs for transmission, programming/debugging, warning, and status
– Jumpers for CQ and DIO selection in independent or joint mode
– Switch for transmission mode selection (transparent, single, or multioctet)
– Reset button
– 10-pin connector for sensor expansion options
– SWD connector for debugging and programming capability
– Protections against surge pulse (up to ± 3APK with 500 Ω coupling) and reverse polarity
– EMC and EMI tested according to standard requirements
– RoHS compliant
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Getting started
UM2942 - Rev 1 page 2/20

1.2 Main board hardware architecture
Figure 2. Main board functional block diagram
The figure above shows the functional block of the main board.
The connection of the blocks results in a robust architecture implementing a smart industrial sensor node
connected as IO-Link device.
The design is centered on the STM32G071EB microcontroller, which manages the IO-Link protocol mini-stack
code embedded to drive the L6364W device transceiver.
The M8 4-way plug connector is strictly related to the L6364W transceiver. This connector allows establishing half
duplex IO-Link communication with an IO-Link master and with a power supply rail (≤ 32 V).
The blocks on the left hand identify the sensors: the ISM330DHCX 6-axis inertial module device with machine
learning core and the IIS2MDC 3-axis digital magnetometer.
1.3 Main board components
1.3.1 STM32G071EB
The STM32G071x8/xB mainstream microcontrollers are based on high-performance Arm® Cortex®-M0+ 32-bit
RISC core operating at up to 64 MHz frequency. Offering a high level of integration, they are suitable for a wide
range of applications in consumer, industrial and appliance domains, as well as Internet of Things (IoT) solutions.
These microcontrollers incorporate a memory protection unit (MPU), high-speed embedded memories (36 kbytes
of SRAM and up to 128 kbytes of Flash program memory with read protection, write protection, proprietary code
protection, and secure area), DMA, an extensive range of system functions, enhanced I/Os, and peripherals.
Optimized dynamic consumption, together with a comprehensive set of power-saving modes, low-power timers
and low-power UART, allows the design of low-power applications.
The devices operate within ambient temperatures from -40 to 125°C and with supply voltages from 1.7 to 3.6 V.
VBAT direct battery input allows keeping RTC and backup registers powered.
For further information, see the STM32G071EB relevant web page.
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Main board hardware architecture
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1.3.2 L6364
The L6364 is a dual-channel transceiver for industrial sensor applications. It has been designed to support the
IO-Link standard and acts as a bridge between a microcontroller with a sensor or actuator function, a supply (up
to 32 V), and a signaling cable.
In normal operation, the microcontroller configures the L6364 via the SPI interface at start-up. Thus, the L6364
operates as a single input/output IO-Link device driving the output lines as configured by the microcontroller. If the
device is connected to an IO-Link master, then the master can initiate communication and exchange data with the
microcontroller while the L6364 acts as a physical layer for the communication.
The main features are:
• supply voltage from 5 to 35 V
• low dissipative (5 Ω) CQ and DIO output stages configurable in high-side, low-side, push/pull
• configurable (0.11 to 0.25 A) current limitation threshold of CQ and DIO lines
• configurable (0.22 to 0.5 A) current limitation threshold of CQ/DIO line (join mode)
• full protections:
– embedded reverse polarization diode (DOUT pin)
– full zero current reverse polarity between Vplus, CQ, DIO, and PGND pins
– configurable (up to 216°C) thermal shutdown threshold
– 7-bit, calibrated, temperature measurement
– configurable (6.0 to 15 V) Vplus undervoltage detection
– CQ and DIO short-circuit current limit and reporting
• -40 to +150°C operating temperature
• suitable to drive L, C, and R loads
• integrated UART peripheral with M-sequence handling (including checksum) for all IO-Link sequences
according to specification v1.1
• single octet UART mode for unlimited M-sequence size and continuous data transfer
• designed to meet the following application requirements:
– ESD IEC 61000-4-2 protection to 4 kV
– EMC surge protection 2A/50 μs (coupling 500 Ω)
• QFN-20L 4x4 mm and CSP 2.5x2.5 mm (used for the design of STEVAL-IOD004V1) packages available
• internal DC-DC buck converter controller with two internal MOS switches. A configurable switching
frequency buck converter can be obtained with an external capacitor and an inductor. The device also
includes linear regulators, which can optionally be used.
1.3.3 ISM330DHCX
The ISM330DHCX is a system-in-package featuring a high-performance 3D digital accelerometer and 3D digital
gyroscope tailored for Industry 4.0 applications.
The various sensing elements have been manufactured using specialized micro-machining processes, while the
IC interfaces have been developed using CMOS technology that allows the design of a dedicated circuit trimmed
to match better the characteristics of the sensing element.
In the ISM330DHCX, the sensing elements of the accelerometer and of the gyroscope are implemented on the
same silicon die, thus guaranteeing superior stability and robustness.
The ISM330DHCX has a full-scale acceleration range of ±2/±4/±8/±16 g and a wide angular rate range of
±125/±250/±500/±1000/±2000/±4000 dps, permitting its usage in a broad range of applications.
All the design aspects and the calibration of the ISM330DHCX have been optimized to reach superior accuracy,
stability, extremely low noise and full data synchronization.
An unmatched set of embedded features (machine learning core, programmable FSM, FIFO, sensor hub, event
decoding and interrupts) enables the implementation of smart and complex sensor nodes for high performance at
very low power.
1.3.4 IIS2MDC
The IIS2MDC is a high-accuracy, ultra-low-power 3-axis digital magnetic sensor, with a magnetic field dynamic
range of up to ±50 gauss.
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Main board components
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The IIS2MDC includes an I²C serial bus interface that supports standard mode, fast mode, fast mode plus, and
high-speed (100 kHz, 400 kHz, 1 MHz, and 3.4 MHz) as well as an SPI serial standard interface.
The device can be configured to generate an interrupt signal for magnetic field detection.
The IIS2MDC is available in a plastic land grid array package (LGA) and is guaranteed to operate over an
extended temperature range (from -40°C to +85°C).
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Main board components
UM2942 - Rev 1 page 5/20

2How to run the STEVAL-IOD004V1 smart industrial sensor
To run the STEVAL-IOD004V1 main board with the STSW-IOD04K preloaded firmware, follow the procedure
below.
Step 1. Connect the board to an IO-Link master embedding a standard M8 4-way socket side connector.
If the IO-Link master and the available cabling are M12, you can use the M8 to M12 connector adapter
provided in the STEVAL-IOD04KT1 reference design kit.
Once the STEVAL-IOD004V1 is connected to a master, it should recognize the sensor node thanks to
the IODD file preloaded in the STSW-IOD04K, assuming that the cable is correctly powering the smart
industrial sensor node at 24 V and below 32 V.
Step 2. Use the STLINK-V3MINI compact in-circuit debugger and programmer for STM32 included in the kit to
debug code for firmware analysis or for code modification.
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How to run the STEVAL-IOD004V1 smart industrial sensor
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3Firmware overview
The STSW-IOD04K is the firmware associated to the STEVAL-IOD04KT1 reference design kit.
This firmware package is available for download at www.st.com.
The package includes freely customizable C-code written examples to speed up the development time.
Note: This IO-Link protocol mini-stack has some limitations regarding event management and ISDU, which are not
included.
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Firmware overview
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4Schematic diagrams
Figure 3. STEVAL-IOD004V1 (main board) circuit schematic (1 of 4)
MCU
MCU STM32G071EB
GND
L6364_UART RX
L6364_UART TX
L6364_INT
L6364_MISO
L6364_MOSI
I2C_SCL
I2C_SDA
L6364_SS
INT2_iNEMO
INT1_iNEMO
IIS2DMC_DRDY
L6364_SCLK
USART2_TX
USART2_RX
3V3
CLTD
L6364
DUAL IO LINK
VCC
DIO
CQ
CTLD
L6364_UART RX
L6364_UART TX
L6364_INT
L6364_MISO
L6364_MOSI
GND
L6364_SS
L6364_SCLK
3V3
Sensors
SENSORS
GND
I2C_SCL
3V3
I2C_SDA
INT1_iNEMO
INT2_iNEMO
IIS2DMC_DRDY
USART2_RX_SN
USART2_TX_SN
L6364_UART RX
I2C_SDA
I2C_SCL
IIS2DMC_DRDY
L6364_MOSI
L6364_INT
L6364_MISO
L6364_SCLK
CTLD
L6364_UART TX
USART2_TX_MCU
USART2_RX_MCU
L6364_SS
a) ISM330DHCX inemo inertial module
b) IIS2MDC - Magnetometer
M8_IOLINK Connectror
UM2942 - Rev 1 page 8/20
UM2942
Schematic diagrams

Figure 4. STEVAL-IOD004V1 (main board) circuit schematic (2 of 4)
DIO
CQ
IO-Link Device supply
voltage Range 7v-32v
default CLOSE 1-2
IO-link 4-position M8 A-coded connector
32V
Male Rear PCB Mount
CQ & DIO independent
(DIO mode) => JP3 open, Jp1 closed
CQ & DIO shorted together
(JOIN mode) => JP3 closed
default open
default closed
default closed
Analog and digital ground connected only at a point
CTLD
L6364_SS
L6364_INT
L6364_MISO
L6364_MOSI
L6364_UART RX
L6364_UART TX
VCC
DIO
CQ
L6364_SCLK
GND
3V3
L6364_UART RX
L6364_UART TX
C7
100nF
TP2
C1
470pF
JP3 0
L1
220uH
12
JP4 0
JP1
TP1
C2
220nF
U1
L6364 (CSP)
VDIG
A5
V3V3
B5
V5V
C4
GND
C5
VDCDC
D4
LED1 C3
LED2 D5
LOUT D3
DOUT D2
CTLD B2
VPLUS D1
DIO C1
CQ B1
A1
PGND
A2
INT
MOSI
A3
MISO
B3
SS
A4
SCK
B4
LD2
LED GREEN
AC
R1 4.7K
C3
470pF
C5
2.2uF
C4
10nF
SW1
1
2
3
C6
4.7uF
CN1
1
4
3
2
JP2
LD1
LED RED
AC
L6364_CTLD
3V3
L6364_MOSI
L6364_INT
L6364_MISO
L6364_SS
L6364_SCLK
L6364_CTLD
L6364_SS
L6364_INT
L6364_MISO
L6364_MOSI
L6364_UART RX
L6364_UART TX
L6364_SCLK
L6364_UART RX
L6364_UART TX
UM2942 - Rev 1 page 9/20
UM2942
Schematic diagrams

Figure 5. STEVAL-IOD004V1 (main board) circuit schematic (3 of 4)
Low Current
DEBUG LED
INT1_iNEMO
GND
L6364_UART TX
L6364_UART RX
L6364_MOSI
L6364_MISO
L6364_INT
I2C_SCL
I2C_SDA
CLTD
L6364_SS
INT2_iNEMO
IIS2DMC_DRDY
L6364_SCLK
USART2_TX
USART2_RX
3V3
3V3
3V3
3V3
3V3
3V3
3V3
3V3
R9
10K
NM
C11
100nF
R5 100
U2
STM32G071EBY
PA15
A1
PA14-BOOT0
A2
PB5
A3
PB7
A4
PC14-ASC32IN
A5
PA12[PA10] B1
PA13 B2
PB6 B3
PB8 B4
PC15-ASC32OUT B5 PA11[PA9]
C1
PA6
C2
PA3
C3
C4
PA0
C5
VDD/VDDA
PA8 D1
PA7 D2
PA4 D3
PA1 D4
VSS/ASSA D5
PB1 E1 PB0 E2 PA5 E3 PA2 E4
PF2-NRST E5
C12
22uF
R2
10K
C9
100nF
R8
10K
NM
R3
2.7K
C8
22uF
R11
680
R10
10K
NM
R6 100
LD3
LED BLUE
AC
R4
2.7K C10
100nF
SW2
miniswitch
J1
SWD connector -Programming
1 2
3 4
5 6
7 8
9 10
R7
10K
NM
L6364_SS
3V3
USART1_TX
GND
L6364_SCLK NRST
L6364_INT
I2C_SCL
L6364_CTLD
USART1_RX
I2C_SDA
SYS_SWDIO
MCU_PB5
L6364_MISO
L6364_MOSI
IIS2DMC_DRDY
L6364_UART RX
USART2_TX
SYS_SWCLK
L6364_UART TX
L6364_MISO
L6364_INT
SYS_SWDIO
SYS_SWCLK
GND
NRST
I2C_SCL
L6364_CTLD
L6364_SS
L6364_MOSI
L6364_UART TX
L6364_UART RX
NRST
GNDGND
I2C_SDA
MCU_PB5
GND
USART2_RX
GND GND GND GND
PA0 PA1 PA3 PA4
PA0
PA3
PA1
PA4
GND
GND
UM2942 - Rev 1 page 10/20
UM2942
Schematic diagrams

Figure 6. STEVAL-IOD004V1 (main board) circuit schematic (4 of 4)
1- select i2C
ISM330DHCX
INT2_iNEMO
3V3
GND
INT1_iNEMO
IIS2DMC_DRDY
USART2_TX_SN
USART2_RX_SN
I2C_SCL
I2C_SDA
3V3
3V3
3V3
3V3
3V3
3V3
3V3
3V3
R13
10K
C16
100nF
C21
220nF
C14
100nF
C13
10uF
C19
10uF
C18
100nF
U4
OCS_Aux 10
SDO/SA0
1
VDDIO 5
INT1
4SCx 3SDx 2
CS
12
INT2 9
GND2 7
VDD 8
GND1 6
SDO_Aux 11
SCL
13
SDA
14
C20
10uF
U3
IIS2MDC
SCL/SPC
1
NC_1
2
CS
3
SDA/SDI/SDO
4
C1
5
GND_1
6
INT/DRDY 7
GND_2 8
VDD 9
VDD_IO 10
NC_2 11
NC_3 12
R15
10K
C15
100nF
J2
Sensor Expansion Connector
1 2
3 4
5 6
7 8
9 10
R12
4.7K
R14
10K NM
GND
I2C_SDA
I2C_SCL
GND
GND
I2C_SDA
I2C_SCL 3V33V3
USART2_TX_MCU USART2_RX_MCU
I2C_SDA
I2C_SCL
IIS2DMC_DRDY
CS
I2C_SCL
GND
I2C_SDA
GND
VDD_IO
GND
GND
GND
UM2942 - Rev 1 page 11/20
UM2942
Schematic diagrams

5Bill of materials
Table 1. STEVAL-IOD04KT1 bill of materials
Item Q.ty Ref. Part/value Description Manufacturer Order code
1 1 Table 2. STEV
AL-IOD004V1 - Main board ST Not available for separate sale
2 1 STLINK-
V3MINI -
In-circuit
debugger
and
programmer
for STM32
ST STLINK-V3MINI
3 1 Cable adapter -
M8 to M12
adapter
including a
20 cm cable
Katlax CDF08S-M12S5-0.2BPVC
Table 2. STEVAL-IOD004V1 (main board) bill of materials
Item Q.ty Ref. Part/value Description Manufacturer Order code
1 2 C1, C3 470 pF, 0603, 50 V Ceramic capacitors Any Any
2 1 C2 220 nF, 0402, 25 V Ceramic capacitor Any Any
3 1 C4 10 nF, 0402, 25 V Ceramic capacitor Any Any
4 1 C5 2.2 µF, 0402, X5R, 25 V ±10% Ceramic capacitor Any Any
5 1 C6 4.7 µF, X5R, 0201, 6.3 V ±20% Ceramic capacitor Any Any
6 8
C7, C9,
C10, C11,
C14, C15,
C16, C18
100 nF X5R, 0201, 10 V ±10% Ceramic capacitors Any Any
7 2 C8, C12 22 µF X5R, 0402, 6.3 V, ±20% Ceramic capacitors Any Any
8 3 C13, C19,
C20 10 µF X5R, 0402, 6.3 V ±20% Ceramic capacitors Any Any
9 1 C21 220 nF X5R, 0402, 6.3 V ±10% Ceramic capacitor Any Any
10 1 CN1 IO LINK M8, PTH 4-pin male
rear PCB mount
IO-Link 4-position M8
A-coded connector Katlax CPM08-RM8BR4-S0
11 1 J1 SWD connector - programming,
SMD Connector header Samtec Inc. FTSH-105-01-L-DV-K- TR
12 1 J2 Sensor expansion connector,
PTH 10-pin
Sensor expansion
connector Harwin M50-3200545
13 4 JP1, JP2,
JP3, JP4 0 Ohm Jumper, drop 0402 Jumpers Any Any
14 1 L1 220 µH, ±10%, SMD Fixed inductor Würth 744032221
15 1 LD1 LED, 20 mA, 0402 Red LED Würth 150040RS73240
16 1 LD3 LED, 20 mA, 2.5 V, 0402 Blue LED Kingbright APHHS1005LQBC/D-V
17 1 LD2 LED, 20 mA, 0402 Green LED Würth 150040VS73240
18 1 R1 4.7 K Ohm, 1/20 W ±1%, 0201 Resistor Any Any
19 2 R2, R15 10 K Ohm, 1/20 W ±1%, 0201 Resistors Any Any
20 2 R3, R4 2.7 K Ohm, 1/20 W ±1%, 0201 Resistors (not
mounted) Any Any
21 2 R5, R6 100 Ohm, 1/20 W ±1%, 0201 Resistors Any Any
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Bill of materials
UM2942 - Rev 1 page 12/20

Item Q.ty Ref. Part/value Description Manufacturer Order code
22 5 R7, R8, R9,
R10, R14 10 K Ohm, 1/20 W ±1%, 0201 Resistors (not mounted) Any Any
23 1 R11 680 Ohm, 1/20 W ±1%, 0201 Resistor Any Any
24 1 R12 4.7 K Ohm, 1/20 W ±1%, 0201 Resistor (not
mounted) Any Any
25 1 R13 10 K Ohm, 1/16 W ±1%, 0402 Resistor Any Any
26 1 SW1 3-pin, drop SMD Switch Any Any
27 1 SW2 Mini switch, SMD Switch E-Switch TL3780AF240QG
28 2 TP1, TP2 Test point, SMD Test points Keystone 5015
29 1 U1 L6364 (CSP), CSP-19
Dual channel
transceiver IC for SIO
and IO-Link sensor
applications
ST L6364W
30 1 U2 STM32G071EBY, WLCSP-25 Mainstream Arm
Cortex-M0+ MCU ST STM32G071EBY6TR
31 1 U3 IIS2MDC, LGA-12
High accuracy,
ultra-low-power, 3-
axis digital output
magnetometer
ST IIS2MDCTR
32 1 U4 ISM330DHCX, LGA-14
IMUs - Inertial
Measurement Units
iNEMO inertial
module: 3D
accelerometer and 3D
gyroscope
ST ISM330DHCXTR
33 1 Cable
Adapter Cable adapter M8-M12 20 cm Cable Katlax CDF08S4- M12S5-02BPVC
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Bill of materials
UM2942 - Rev 1 page 13/20

6Board versions
Table 3. STEVAL-IOD04KT1 versions
Finished good Schematic diagrams Bill of materials
STEVAL$IOD04KT1A (1) STEVAL$IOD04KT1A schematic diagrams STEVAL$IOD04KT1A bill of materials
1. This code identifies the STEVAL-IOD04KT1 evaluation board first version.
UM2942
Board versions
UM2942 - Rev 1 page 14/20

7Regulatory compliance
Formal Notice Required by the U.S. Federal Communications Commission
FCC NOTICE:
This kit is designed to allow:
(1) Product developers to evaluate electronic components, circuitry, or software associated with the kit to
determine whether to incorporate such items in a finished product and
(2) Software developers to write software applications for use with the end product.
This kit is not a finished product and when assembled may not be resold or otherwise marketed unless all
required FCC equipment authorizations are first obtained. Operation is subject to the condition that this product
not cause harmful interference to licensed radio stations and that this product accept harmful interference. Unless
the assembled kit is designed to operate under part 15, part 18 or part 95 of this chapter, the operator of the kit
must operate under the authority of an FCC license holder or must secure an experimental authorization under
part 5 of this chapter 3.1.2.
Formal Product Notice Required by Industry Canada Innovation, Science and Economic Development
Canada compliance:
For evaluation purposes only. This kit generates, uses, and can radiate radio frequency energy and has not been
tested for compliance with the limits of computing devices pursuant to Industry Canada (IC) rules.
À des fins d'évaluation uniquement. Ce kit génère, utilise et peut émettre de l'énergie radiofréquence et n'a pas
été testé pour sa conformité aux limites des appareils informatiques conformément aux règles d'Industrie Canada
(IC).
Formal product notice required by EU
This device is in conformity with the essential requirements of the Directive 2014/30/EU (EMC) and of the
Directive 2015/863/EU (RoHS).
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Regulatory compliance
UM2942 - Rev 1 page 15/20

Revision history
Table 4. Document revision history
Date Revision Changes
27-Oct-2021 1 Initial release.
UM2942
UM2942 - Rev 1 page 16/20

Contents
1Getting started ....................................................................2
1.1 Features ......................................................................2
1.2 Main board hardware architecture ................................................3
1.3 Main board components.........................................................3
1.3.1 STM32G071EB..........................................................3
1.3.2 L6364 .................................................................4
1.3.3 ISM330DHCX ...........................................................4
1.3.4 IIS2MDC ...............................................................4
2How to run the STEVAL-IOD004V1 smart industrial sensor .........................6
3Firmware overview ................................................................7
4Schematic diagrams ...............................................................8
5Bill of materials...................................................................12
6Board versions ...................................................................14
7Regulatory compliance ...........................................................15
Revision history .......................................................................16
List of tables ..........................................................................18
List of figures..........................................................................19
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Contents
UM2942 - Rev 1 page 17/20

List of tables
Table 1. STEVAL-IOD04KT1 bill of materials ......................................................12
Table 2. STEVAL-IOD004V1 (main board) bill of materials............................................. 12
Table 3. STEVAL-IOD04KT1 versions........................................................... 14
Table 4. Document revision history ............................................................. 16
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List of tables
UM2942 - Rev 1 page 18/20

List of figures
Figure 1. STEVAL-IOD04KT1 evaluation kit .......................................................1
Figure 2. Main board functional block diagram .....................................................3
Figure 3. STEVAL-IOD004V1 (main board) circuit schematic (1 of 4)......................................8
Figure 4. STEVAL-IOD004V1 (main board) circuit schematic (2 of 4)......................................9
Figure 5. STEVAL-IOD004V1 (main board) circuit schematic (3 of 4)..................................... 10
Figure 6. STEVAL-IOD004V1 (main board) circuit schematic (4 of 4)..................................... 11
UM2942
List of figures
UM2942 - Rev 1 page 19/20

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