Texas Instruments AM437x GP User Manual

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AM437x GP EVM Hardware User's Guide

Verified Design

Literature Number: SPRUHW7

June 2014

Lawrence Ronk

An IMPORTANT NOTICE at the end of this TI reference design addresses authorized use, intellectual property matters and other important disclaimers and information.

1 Introduction

This document describes the hardware architecture of the AM437x Evaluation Module (EVM) (part number TMDXEVM437X), which is based on the Texas Instruments (TI) AM437x processor. This EVM is also commonly known as the AM437x General Purpose (GP) EVM.

1.1 Description

The AM437x GP EVM is a standalone test, development, and evaluation module system that enables developers to write software and develop hardware around an AM437x processor subsystem. The main elements of the AM437x subsystem are already available on the base board of the EVM, which gives developers the basic resources needed for most general purpose type projects that encompass the AM437x as the main processor. Furthermore, additional, "typical-type" peripherals are built into the EVM, such as memory, sensors, LCD, Ethernet physical layer (PHY), and so on, so that prospective systems can be modeled quickly without significant additional hardware resources.

The following sections give more details regarding the EVM.

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AM437x GP EVM Hardware User's Guide

1.2 System View

The system view of the AM437x GP EVM consists of the main board and the camera board. See Figure 1 and Figure 2 of the EVM.

Figure 1. AM437x GP EVM Top View Figure 2. AM437x GP EVM Bottom View

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2 Functional Blocks Description

The complete AM437x GP EVM is contained mostly within a single board. The GP EVM can also have a camera and wireless board.

Functional Blocks Description

2.1 Processor

The AM437x processor is the central processor to this EVM. All the resources on the board surround the AM437x processor to provide development capabilities for hardware and software. See the AM437x data

sheet and TRM for the details about the processor.

System configuration signals (sysboot0 to 18) can be set on the EVM using resistors and switches to define some startup parameters on the AM437x processor. See Section 4 for more details.

2.2 Clocks

The EVM has several clocks to support the AM437x processor. The main clock for the processor is derived from a 24-MHz crystal. AM437x generates the base clock and subsequent module clocks as needed within the AM437x processor. A 32-kHz clock for the RTC on the AM437x is derived from a

32.768-kHz crystal on the board.

2.3 Reset Signals

SYS_RESETn is a reset signal running to several peripherals and AM437x which performs a reset on those peripherals. SYS_RESETn is asserted by the push-button and is used to force a reset of the AM437x and the other peripherals. AM437x can also pull down the RESET_INOUTn signal to cause the SYS_RESETn line to activate. The power-on reset to the processor is driven from the power good signal of the power manager. Also, a reset push-button is provided for the power on reset of the board.

Figure 3. AM437x EVM System Block Diagram

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Functional Blocks Description

2.4 DDR3 SDRAM

The AM437x GP EVM contains four 4-Gb (512Mb × 8) of DDR3L SDRAM memories from Micron. The part number for the DDR3L SDRAM memory used is MT41K512M8RH. The package used is a 78-ball FBGA package. See the AM437x TRM for memory locations for this memory.

2.5 NAND Flash

The GP EVM has a NAND-type of flash. The part number of the memory used is MT29F4G08AB, which is a 4-Gb (512M x 8) flash memory. The GPMC signals are used to communicate with this memory.

2.6 Board Identity Memory

Each of the board has a serial EEPROM that contains board specific data that allow the processor to automatically detect which board is connected and the version of that board. This memory device can store other hardware specific data as well. The part number of the memory device is CAT24C256WI-G. See Section 4 for details on the data in this memory.

2.7 SDMMC0

The SDMMC0 connector on the GP EVM is a microSD socket with part number SCHA5B0200. This connector is a standard SD/MMC card type of connector. The connector links to the MMC0 port of the AM437x processor. Check the AM437x data sheet and TRM for supported card types and densities.

2.8 10/100/1000 Ethernet

The AM437x GP EVM has a 10/100/1000 Ethernet transceiver from Micrel (KSZ9031RN) that is connected to an RJ45 (J18) connector.

The reset on the transceiver is driven by the board system reset signal SYS_RESETn. A 25-MHz crystal drives the clock input of the KSZ9031RN Ethernet PHY.

The PHY address is set to 0x00h.

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2.9 USB

The AM437x GP EVM supports 2 USB ports. The USB ports are connected to a microUSB AB connector and a standard A-type connector. The ESD device TPD4S012 and common choke filter ACM2012 (TDK) are used on the USB signals before they are connected to the AM437x pins.

2.10 Connectivity

The AM437x GP EVM supports MCS COM8 form factor wireless boards from TI through the J20 COM connector, which is a Samtec card edge type connector MEC6-150-02-S-D-RA1. Therefore, this connector supports COM8 types of boards. More details about this connector can be found in the MCS COM8 board documents.

The COM connector requires 3.6 V, 442 mA on the power supply. Thus, a TPS79501 LDO regulator is used to provide this voltage supply from the base 5.0V supply.

The signals on the COM board are all 1.8-V voltage levels. Thus, voltage translators are placed to convert to/from 3.3V of the AM437x rail for a particular signal which is running at 3.3V.

2.11 UART

This EVM supports one RS232 port connector. A MAX3243 RS-232 transceiver is used in between UART0 signals from the processor and the DB9 connector.

2.12 ADC

The analog inputs to the AM437x are terminated on the connector J22, where a magnetic swipe assembly can be connected.

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2.13 Dual Cameras

The two camera interfaces from the AM437x processor are terminated on the 12×2 headers, J2 and J3. The custom-made camera module from TI with part number 4P0041 interfaces with the header J3. This camera module is a separate camera board that attaches at a right angle so that the camera can face horizontally when the GP EVM is lying on a test bench. The OmniVision OV2659 SOC-based 2-MP camera module from SunnyOptics with part number P212A interfaces with the header J2. The OV2659 delivers a high-definition video and excellent low-light sensitivity for cost-sensitive applications.

2.14 Audio

The headphone output and line input signals from the two 3.5-mm SJ3524 jacks are connected to the audio codec with part number TLV320AIC3106. These signals connect through the McASP1 and I2C interfaces of the AM437x.

3 Power Supplies

This section describes how the power supplies required for the design are generated.

3.1 Power Source

AM437x GP EVM uses an external AC for a 5-V-DC (rated 2.5 A minimum) power adapter. The slide switch SW2 is used to switch the main power to the board on and off. The main power is off when the power switch is in the position away from the power supply jack. The main power is on when the power switch is in the position closest to the power supply jack.

Functional Blocks Description

3.2 Power Sequencing

The power sequencing requirements of the AM437X processor (see the AM437x data sheet) are handled automatically by the TPS65218 PMIC.

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Power Supplies

3.3 Power Management IC Power Supplies

The AM437x GP EVM uses the TPS65218 power management IC. The I2C0 on AM437x is used to control the Smart Reflex port and control port on the TPS65218. Table 1 and Table 2 detail the power supplies used.

Table 1. AM437x Power Supplies from TPS65218

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TPS65218

POWER SUPPLY

VDCDC1 VDD_CORE, VDD_TPM 1.1 V VDCDC2 VDD_MPU 1.1 V VDCDC3 VDDS_DDR 1.35 V VLS1 VDD_DDR 1.35 V

VDDS_CLKOUT, VDDS_OSC, VDDS_SRAM_CORE_BG, VDDS_SRAM_MPU_BB,

V1_8D_AM437X 1.8 V

V1_0BAT CAP_VDD_RTC 1.0 V V1_8BAT VDDS_RTC 1.8 V V3_3D_AM438X VDDA_3P3V_USB0, VDDA_3P3V_USB1, VDDSHV1, 2, 3, 4, 5, 6, 7, 8, and 10 3.3 V V5_0D HDMI circuitry, USB0 power 5.0 V

VDDS_PLL_CORE_LCD, VDDS_PLL_DDR, VDDS_PLL_MPU, VDDA1P8V_USB0, VDDA1P8V_USB1, VDDS_CTM, VDDS_TPM, VPP, VDDA_MC_ADC, VDDA_TS_ADC, VDDS, COM8, VDDSHV9, VDDSHV11, tamper, ADC input sections

NOTE: The TPS65218 power management IC that is used on the AM437x GP EVM rev. 1.2 has

several issues that can affect operation. See the errata for the TPS65218 for more details.

3.3.1 Other Power Supplies Used

POWER SUPPLY POWER RAIL VOLTAGE

NAND memory, QPSI flash, Ethernet PHY, SDMMC0, board ID memory, ARM JTAG,

V3_3D 3.3 V

V3_3FTDI FT2232 section from TPS79333 3.3 V VBAT 5.0 V V1_2D HDMI section power 1.2 V

buffers of FTDI section, LCD buffer, touch screen, camera module, HDMI buffer, audio codec, RS-232 sections, COM8 sections, smart card sections, tamper header, platform test section, GPIO header, printer

LCD power generation, camera module, VCOM_BAT generation for COM8 module, USB1 power generation, platform test section, LEDs, GPIO header, buzzer, printer

AM437X POWER RAIL VOLTAGE

Table 2. Other Power Supplies

3.4 APM Sense Resistors

The AM437x GP EVM has the following subsystems with current sense resistors. These resistors allow the power to be measured on each power rail to check AM437x power requirements during real-time software execution. The value of the resistors is selected to provide the best dynamic range when using a TI INA226 converter. An INA226 converter is installed on the EVM for both the VDD_CORE and VDD_MPU power supply rails of the AM437x. The other power rails have sense resistors but have their measurement connections attached to 2-pin standard headers so they can be read easily by a multimeter or connected to an INA226-converter EVM. The value of the sense resistors for the VDD_CORE and VDD_MPU were selected to give better dynamic range for active power modes rather than sleep or low power modes. If power is to be measured for VDD_CORE or VDD_MPU for sleep or low power modes, then this sense resistor value must be changed to give better shunt voltage values.

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Table 3. AM437x GP EVM APM Sense Resistors

VOLTAGE NET SENSE RESISTOR VALUE

VDD_CORE 0.05 ohm

VDD_MPU 0.05 ohm

VAM437X_DDR 0.05 ohm

VDDS_DDR 0.05 ohm V1_8D_AM437X 0.1 ohm V3_3D_AM437X 0.1 ohm

4 Configuration and Setup

4.1 Boot Configuration

The AM437x has sysboot pins that can be configured using two 5-bit DIP switches on the EVM. These sysboot switches will configure the AM437x to different boot settings. The SW12 switch can be used to set sysboot bits 0 to 4, and the SW11 switch can set sysboot bits 5, 6, 9, 12, and 13. Other sysboot pin settings are done through resistors either pulled high or low. See the AM437x TRM and data sheet for the definitions of each of the sysboot signals. See the GP EVM schematic for more details.

4.2 I2C Address Assignments

In the AM437x GP EVM boards, each separate board has an I2C ID memory that contains the details of the identity of that board, such as its configuration. See the following sections for more details on the memories' contents.

Configuration and Setup

AM437X FUNCTION AM437X I2C PORT ADDRESS

Board ID memory I2C0 0x50 PMIC control I2C0 0x2D Touch screen control I2C1 0x5C Camera module 0 I2C0 0xxx Camera module 1 I2C1 0xxx Audio codec I2C0 0x18 HDMI transmitter I2C2 0x76 HDMI companion chip I2C2 0xxx Multiple smart card slot interface IC I2C2 0xxx

4.3 I2C ID Memory

The GP EVM has a dedicated I2C EEPROM, which contains specific identity and configuration information for that board. In addition, the dedicated I2C EEPROM has available space in each memory for userspecific configuration information.

The part number of the memory device is CAT24C256WI-G.

Table 4. AM437x I2C Bus Addresses

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Configuration and Setup

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Table 5. AM437x GP EVM EEPROM Data

Header 4 MSB 0xEE3355AA LSB Board Name 8 Name for board in ASCII "XXXXXXX" = AM437x GP EVM Version 4 Hardware version code for board in ASCII "1.4A" = rev. 01.4A

Serial Number 12

Configuration 32

Ethernet MAC address 0 6 MAC address for AM437x Ethernet MAC 1 Ethernet MAC address 1 6 MAC address for AM437x Ethernet MAC 2 or PRU 0 Ethernet MAC address 2 6 MAC address for AM437x PRU 1 (if used) Available 32702 Available space for other non-volatile codes and data

4.4 JTAG

The AM437x GP EVM supports embedded XDS100V2 USB Emulation through the micro-USB AB connector. The EVM also has an optional 20-pin TI CJTAG connector to support the emulation. This CJTAG connector is not installed by default. Other JTAG adaptors are available on TI's e-store.

NAME CONTENTS

SIZE

(BYTES)

Serial number of the board. This is a 12-character string: WWYY4P16nnnn where:

• WW = 2 digit week of the year of production

• YY = 2 digit year of production

• nnnn = incrementing board number

Codes to show the configuration setup on this board. For the available EVM's supported, the following codes are used:

• ASCII "SKU#01" = base board for general purpose EVM

• ASCII "SKU#02" = base board for industrial motor control EVM

• Remaining 26 bytes are reserved

5 User Interfaces

5.1 Keypad

The keypad has six push button switches (SW4, SW5, SW6, SW7, SW8, and SW9) with Omron part number B3SL-1022P on the component side of the board. This keypad uses two power and three scan lines to enable six buttons to be monitored.

5.2 LEDs

There are eight status LEDs (three green LEDs, one yellow LED, one red LED, one blue LED, and one orange LED) on the top side of the EVM. The EVM also has a green LED (D2) to indicate power-on available.

5.3 Audio Buzzer

An audio buzzer is installed on the board to provide auditory cues to the user. This audio buzzer PUI audio AI-1027-TWT-3V-R is driven from a GPIO.

5.4 Capacitive Touch LCD

The LCD is a 7-inch WVGA (800×480) RGB LCD panel part number OSD070T1718-19TS. The LCD is a 24-bit RGB TFT LCD with 21 white LEDs for backlight (controlled by the TPS61081DRC power regulator). The connector used is an FPC-type, 50-pin connector with part number FH12S-50S-0.5SH. The LED backlight on the LCD is controlled by a PWM-controlled LED driver (TPS61081). The LCD has a capacitive touch screen, which is connected to the I2C0 port of the processor. The power required for the LCD is generated using the linear regulator supply (TPS65105).

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6 Pin Use Description

6.1 Functional Interface Mapping

Some signals of the AM437x are connected to a fixed device on the EVM where it cannot be changed. However, some of the signals of the AM437x are connected to devices on the EVM based on the profile setting.

6.2 GPIO Definitions

The developer can select and enable pins based on the selective peripheral pins as output or input.

7 Board Connectors

The pinout details of all the connectors used in the GP EVM are provided in Table 6 through Table 23.

7.1 Battery Board Connector - J1

PIN NUMBER SIGNAL NAME

1 VPWR_IN 2 VBAT 3 VPWR_IN 4 VBAT 5 PGOODBU 6 NC 7 NC 8 NC

9 DGND 10 NC 11 AM437X_AIN7 12 NC 13 BAT_HDQ 14 PMIC_AC_DET 15 DGND 16 DGND

Pin Use Description

Table 6. Battery Board Connector

7.2 HEADPHONE OUT - J16

PIN NUMBER SIGNAL NAME

1 AGND_AUD

2 AUD_HPLOUT_JCK

3 AUD_HPROUT_JCK 10 NC

7.3 LINE IN - J14

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Table 7. Audio Out Connector

Board Connectors

7.4 SDMMC0 - J7

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Table 8. Audio Line-in Connector

PIN NUMBER SIGNAL NAME

1 AGND_AUD

2 AUD_HPLOUT_JCK

3 AUD_HPROUT_JCK 10 NC

Table 9. SDMMC0 Connector

PIN NUMBER MEMORY CARD PIN NO

1 MMC_D2

2 MMC_D3

3 MMC_CMD

4 VDD

5 MMC_CLK

6 DGND

7 MMC_D0

8 MMC_D1

9 DGND 10 MMC_CD 11 DGND 12 DGND 13 DGND 14 DGND 15 DGND 16 DGND

7.5 LCD Connector - J15

PIN NUMBER SIGNAL DESCRIPTION

1 VLED+ Backlight Power + 2 VLED+ Backlight Power + 3 VLED- Backlight Power – 4 VLED- Backlight Power – 5 GND Ground 6 VLCD_VCOM Voltage 7 VLCD_DVDD Voltage 8 GND Ground

9 LCD_EN LCD Enable 10 LCD_VSYNC LCD vertical sync 11 LCD_HSYNC LCD horizontal sync 12 LCD_BLUE7 LCD blue data 7 13 LCD_BLUE6 LCD blue data 6 14 LCD_BLUE5 LCD blue data 5 15 LCD_BLUE4 LCD blue data 4 16 LCD_BLUE3 LCD blue data 3

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Table 10. LCD Connector

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Board Connectors

Table 10. LCD Connector (continued)

PIN NUMBER SIGNAL DESCRIPTION

17 LCD_BLUE2 LCD blue data 2 18 LCD_BLUE1 LCD blue data 1 19 LCD_BLUE0 LCD blue data 0 20 LCD_GREEN7 LCD green data 7 21 LCD_GREEN6 LCD green data 6 22 LCD_GREEN5 LCD green data 5 23 LCD_GREEN4 LCD green data 4 24 LCD_GREEN3 LCD green data 3 25 LCD_GREEN2 LCD green data 2 26 LCD_GREEN1 LCD green data 1 27 LCD_GREEN0 LCD green data 0 28 LCD_RED7 LCD red data 7 29 LCD_RED6 LCD red data 6 30 LCD_RED5 LCD red data 5 31 LCD_RED4 LCD red data 4 32 LCD_RED3 LCD red data 3 33 LCD_RED2 LCD red data 2 34 LCD_RED1 LCD red data 1 35 LCD_RED0 LCD red data 0 36 GND Ground 37 LCD_PCLK Clock 38 GND Ground 39 LCD_LEFTRIGHT Left and right scan direction select 40 LCD_UPDOWN Up and down scan direction select 41 VLCD_VGH Voltage high 42 VLCD_VGL Voltage low 43 VLCD_AVDD Voltage analog 44 LCD_RESETn Reset 45 NC No connect 46 VLCD_VCOM Voltage 47 LCD_DITHER Dither 48 GND Ground 49 NC No connect 50 NC No connect

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Board Connectors

7.6 Touch Screen Connector - J17

Table 11. LCD Capacitive Touch Screen Pin Details

PIN NUMBER DIRECTION DESCRIPTION

1 NC No connect 2 NC No connect 3 TOUCH_INTn Touch screen interrupt 4 GP_I2C_SDA I2C data 5 GP_I2C_SCL I2C clock 6 SYS_RESETn Reset 7 GND Ground 8 VCC Power

7.7 Ethernet - J18

Table 12. 10/100/1000 Ethernet Connector

PIN NUMBER SIGNAL NAME DESCRIPTION

1 DGND Ground 2 NC No connect 3 ETHER1_D3P Data 3 ve 4 ETHER1_D3N Data 3 –ve 5 ETHER1_D2P Data 2 ve 6 ETHER1_D2N Data 2 –ve 7 ETHER1_D1P Data 1 ve 8 ETHER1_D1N Data 1 –ve

9 ETHER1_D0P Data 0 ve 10 ETHER1_D0N Data 0 –ve 11 ACT LED ANODE Anode of ACT LED 12 ACT LED CATHODE Cathode of ACT LED 13 LINK LED CATHODE Cathode of LINK LED 14 LINK LED ANODE Anode of LINK LED

SHLD1 DGND Ground SHLD2 DGND Ground

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7.8 USB - J11

PIN NUMBER SIGNAL NAME DESCRIPTION

1 VUSB_VBUS0 USB0 bus voltage

2 USB0_CONN_DM USB0 data –

3 USB0_CONN_DP USB0 data +

4 USB0_ID USB0 identification

5 DGND Ground

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Table 13. Micro AB Connector - USB 0

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7.9 USB - J13

PIN NUMBER SIGNAL NAME DESCRIPTION

1 VUSB_VBUS1 USB1 bus voltage

2 USB1_CONN_DM USB1 data –

3 USB1_CONN_DP USB1 data +

4 DGND Ground

7.10 Camera Interface Header

7.10.1 Camera Interface 0 - J2

PIN NUMBER SIGNAL NAME DESCRIPTION

1 AGND_CAM0 Analog ground

2 SENSOR_SIO_D Sensor serial I/O data

3 V2_8A 2.8-V Supply

4 SENSOR_SIO_C Sensor serial I/O clock

5 DGND Ground

6 SENSOR_VSYNC Sensor VSYNC

7 DGND Ground

8 SENSOR_HREF Sensor HREF

9 V1_5D 1.5-V Supply 10 SENSOR_XCLK Sensor clock 11 SENSOR_PWRDN Sensor power down 12 V2_8D 2.8-V Supply 13 SENSOR_PCLK Sensor clock 14 NC No connect 15 SENSOR_RESET Sensor reset 16 NC No connect 17 SENSOR_Y9 Sensor data 9 18 SENSOR_Y8 Sensor data 8 19 SENSOR_Y7 Sensor data 7 20 SENSOR_Y6 Sensor data 6 21 SENSOR_Y5 Sensor data 5 22 SENSOR_Y4 Sensor data 4 23 SENSOR_Y3 Sensor data 3 24 SENSOR_Y2 Sensor data 2

Board Connectors

Table 14. Type A - USB Port 1

Table 15. Camera Header 0

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Board Connectors

7.10.2 Camera Interface 1 - J3

PIN NUMBER SIGNAL NAME DESCRIPTION

1 VBAT VBAT

2 CAM1_VSYNC Vertical sync

3 CAM1_DATA0 Data 0

4 CAM1_HSYNC Horizontal sync

5 CAM1_DATA1 Data 1

6 CAM1_DATA6 Data 6

7 CAM1_DATA2 Data 2

8 CAM1_DATA7 Data 7

9 CAM1_PCLK Clock 10 CAM1_DATA8 Data 8 11 GND Ground 12 GND Ground 13 CAM1_DATA3 Data 3 14 CAM1_DATA9 Data 9 15 CAM1_DATA4 Data 4 16 CAM1_GIO0 GPIO 0 17 CAM1_DATA5 Data 5 18 CAM1_GIO1 GPIO 1 19 CAM1_WEN Write enable 20 CAM1_FIELD Field 21 GND Ground 22 GP_I2C_SCL I2C clock 23 CAM1_SRCCLK Clock 24 GP_I2C_SDA I2C data

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Table 16. Camera Header 1

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7.11 HDMI Connector - J19

PIN NUMBER SIGNAL NAME DESCRIPTION

1 HDMI_TX2+ Data Transmit2 +ve 2 DAT2_S Data 2 GND 3 HDMI_TX2- Data Transmit2 –ve 4 HDMI_TX1+ Data Transmit1 +ve 5 DAT1_S Data 1 GND 6 HDMI_TX1- Data Transmit1 –ve 7 HDMI_TX0+ Data Transmit0 +ve 8 DAT0_S Data 0 GND

9 HDMI_TX0- Data Transmit0 –ve 10 CLK+ Clock +ve 11 Clock_S Clock GND 12 Clock- Clock –ve 13 HDMICONN_CEC CEC 14 NC No Connect 15 HDMICONN_I2CSCL I2C Clock 16 HDMICONN_I2CSDA I2C Data 17 GND Ground

Board Connectors

Table 17. HDMI Header

7.12 RS232 Connector - J9

PIN NUMBER SIGNAL NAME DESCRIPTION

1 NC No connect

2 RS232_0RXD Receive

3 RS232_0TXD Transmit

4 NC No connect

5 GND Ground

6 NC No connect

7 RRS232_0RTS Request to send

8 RS232_0CTS Clear to send

9 NC No connect

Table 18. RS-232 Connector

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Board Connectors

7.13 CAN INTERFACE

7.13.1 CAN INTERFACE 0 - J4

PIN NUMBER SIGNAL NAME DESCRIPTION

B1 NC No connect B2 CAN0_L Can diff signal low B3 GND_CAN0 Ground B4 NC No connect B5 GND_CAN0 Ground B6 GND_CAN0 Ground B7 CAN0_H Can diff signal high B8 NC No connect B9 VCAN0 VCC

7.13.2 CAN INTERFACE 1 - J37

PIN NUMBER SIGNAL NAME DESCRIPTION

B1 NC No connect B2 CAN1_L Can diff signal low B3 GND_CAN1 Ground B4 NC No connect B5 GND_CAN1 Ground B6 GND_CAN1 Ground B7 CAN1_H Can diff signal high B8 NC No connect B9 VCAN1 VCC

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Table 19. CAN 0 Connector

Table 20. CAN 1 Connector

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7.14 ADC Input Header - J22

PIN NUMBER SIGNAL NAME DESCRIPTION

1 V1_8D 1.8-V Supply

2 VBAT VBAT

3 MON_AIN0 Monitoring analog input 0

4 MON_AIN4 Monitoring analog input 4

5 MON_AIN1 Monitoring analog input 1

6 MON_AIN5 Monitoring analog input 5

7 MON_AIN2 Monitoring analog input 2

8 MON_AIN6 Monitoring analog input 6

9 MON_AIN3 Monitoring analog input 3 10 MON_AIN7 Monitoring analog input 7 11 GND_ADC Analog ground 12 GND_ADC Analog ground 13 AM437X_MAG_ADC0 ADC input 0 14 AM437X_MAG_ADC4 ADC input 4 15 AM437X_MAG_ADC1 ADC input 1 16 AM437X_MAG_ADC5 ADC input 5 17 AM437X_MAG_ADC2 ADC input 2 18 AM437X_MAG_ADC6 ADC input 6 19 AM437X_MAG_ADC3 ADC input 3

Board Connectors

Table 21. ADC Input Header

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Board Connectors

7.15 GPIO Header - J30

PIN NUMBER SIGNAL NAME DESCRIPTION

1 V3_3D Voltage 3.3 V

2 VBAT Voltage VBAT

3 GPIO0 General Purpose I/O 0

4 NC No connect

5 GPIO1 General Purpose I/O 1

6 NC No connect

7 GPIO2 General Purpose I/O 2

8 NC No connect

9 GPIO3 General purpose I/O 3 10 NC No connect 11 GPIO4 General purpose I/O 4 12 DGND Ground 13 GPIO5 General purpose I/O 5 14 SPI1_SCLK SPI1 clock 15 GPIO6 General purpose I/O 6 16 SPI1_D0 SPI1 DO 17 GPIO7 General purpose I/O 7 18 SPI1_D1 SPI1 D1 19 GPIO8 General purpose I/O 8 20 SPI1_CS0 SPI1 chip select 21 GPIO9 General purpose I/O 9 22 GPIO18 General purpose I/O 18 23 GPIO10 General purpose I/O 10 24 GP_I2C_SCL I2C clock 25 GPIO11 General purpose I/O 11 26 GP_I2C_SDA I2C data 27 GPIO12 General purpose I/O 12 28 GPIO19 General purpose I/O 19 29 GPIO13 General purpose I/O 13 30 GPIO20 General purpose I/O 20 31 GPIO14 General purpose I/O 14 32 GPIO21 General purpose I/O 21 33 GPIO15 General purpose I/O 15

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Table 22. GPIO Header

7.15.1 I2C Header - J6

PIN NUMBER SIGNAL NAME DESCRIPTION

1 PWRMON_I2CSCL I2C clock

2 PWRMON_I2CSDA I2C data

3 DGND Ground

4 PM_ALERT Alert

5 NC No connect

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Table 23. I2C Header

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EVM Important Notices

8 EVM Important Notices

8.1 ADDITIONAL TERMS AND CONDITIONS, WARNINGS, RESTRICTIONS, AND DISCLAIMERS FOR EVALUATION MODULES

NOTE: These EVM terms and conditions can be downloaded in PDF format.

Texas Instruments Incorporated (TI) markets, sells, and loans all evaluation boards, kits, and/or modules (EVMs) pursuant to, and user expressly acknowledges, represents, agrees, and takes sole responsibility and risk with respect to the following:

1. User agrees and acknowledges that EVMs are intended to be handled and used for feasibility

evaluation only in laboratory and/or development environments. Notwithstanding the foregoing, in certain instances, TI makes certain EVMs available to users that do not handle and use EVMs solely for feasibility evaluation only in laboratory and/or development environments, but may use EVMs in a hobbyist environment. All EVMs made available to hobbyist users are FCC certified, as applicable. Hobbyist users acknowledge, agree, and shall comply with all applicable terms, conditions, warnings, and restrictions in this document and are subject to the disclaimer and indemnity provisions included in this document.

2. Unless otherwise indicated, EVMs are not finished products and not intended for consumer use. EVMs

are intended solely for use by technically qualified electronics experts who are familiar with the dangers and application risks associated with handling electrical mechanical components, systems, and subsystems.

3. User agrees that EVMs shall not be used as, or incorporated into, all or any part of a finished product.

4. User agrees and acknowledges that certain EVMs may not be designed or manufactured by TI.

5. User must read the user's guide and all other documentation accompanying EVMs, including without

limitation any warning or restriction notices, prior to handling and/or using EVMs. Such notices contain important safety information related to, for example, temperatures and voltages. For additional information on TI's environmental and/or safety programs, please visit www.ti.com/esh [4] or contact TI.

6. User assumes all responsibility, obligation, and any corresponding liability for proper and safe handling

and use of EVMs.

7. Should any EVM not meet the specifications indicated in the user’s guide or other documentation

accompanying such EVM, the EVM may be returned to TI within 30 days from the date of delivery for a full refund. THE FOREGOING LIMITED WARRANTY IS THE EXCLUSIVE WARRANTY MADE BY TI TO USER AND IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR PURPOSE. TI SHALL NOT BE LIABLE TO USER FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES RELATED TO THE HANDLING OR USE OF ANY EVM.

8. No license is granted under any patent right or other intellectual property right of TI covering or relating

to any machine, process, or combination in which EVMs might be or are used. TI currently deals with a variety of customers, and therefore TI’s arrangement with the user is not exclusive. TI assumes no liability for applications assistance, customer product design, software performance, or infringement of patents or services with respect to the handling or use of EVMs.

9. User assumes sole responsibility to determine whether EVMs may be subject to any applicable federal,

state, or local laws and regulatory requirements (including but not limited to U.S. Food and Drug Administration regulations, if applicable) related to its handling and use of EVMs and, if applicable, compliance in all respects with such laws and regulations.

10. User has sole responsibility to ensure the safety of any activities to be conducted by it and its

employees, affiliates, contractors or designees, with respect to handling and using EVMs. Further, user is responsible to ensure that any interfaces (electronic and/or mechanical) between EVMs and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electrical shock hazard.

11. User shall employ reasonable safeguards to ensure that user’s use of EVMs will not result in any

property damage, injury or death, even if EVMs should fail to perform as described or expected.

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EVM Important Notices

12. User shall be solely responsible for proper disposal and recycling of EVMs consistent with all

applicable federal, state, and local requirements

Certain Instructions

User shall operate EVMs within TI’s recommended specifications and environmental considerations per the user’s guide, accompanying documentation, and any other applicable requirements. Exceeding the specified ratings (including but not limited to input and output voltage, current, power, and environmental ranges) for EVMs may cause property damage, personal injury or death. If there are questions concerning these ratings, user should contact a TI field representative prior to connecting interface electronics including input power and intended loads. Any loads applied outside of the specified output range may result in unintended and/or inaccurate operation and/or possible permanent damage to the EVM and/or interface electronics. Please consult the applicable EVM user's guide prior to connecting any load to the EVM output. If there is uncertainty as to the load specification, please contact a TI field representative. During normal operation, some circuit components may have case temperatures greater than 60°C as long as the input and output are maintained at a normal ambient operating temperature. These components include but are not limited to linear regulators, switching transistors, pass transistors, and current sense resistors which can be identified using EVMs’ schematics located in the applicable EVM user's guide. When placing measurement probes near EVMs during normal operation, please be aware that EVMs may become very warm. As with all electronic evaluation tools, only qualified personnel knowledgeable in electronic measurement and diagnostics normally found in development environments should use EVMs.

Agreement to Defend, Indemnify and Hold Harmless

User agrees to defend, indemnify, and hold TI, its directors, officers, employees, agents, representatives, affiliates, licensors and their representatives harmless from and against any and all claims, damages, losses, expenses, costs and liabilities (collectively, "Claims") arising out of, or in connection with, any handling and/or use of EVMs. User’s indemnity shall apply whether Claims arise under law of tort or contract or any other legal theory, and even if EVMs fail to perform as described or expected.

Safety-Critical or Life-Critical Applications

If user intends to use EVMs in evaluations of safety critical applications (such as life support), and a failure of a TI product considered for purchase by user for use in user’s product would reasonably be expected to cause severe personal injury or death such as devices which are classified as FDA Class III or similar classification, then user must specifically notify TI of such intent and enter into a separate Assurance and Indemnity Agreement.

www.ti.com

8.2 RADIO FREQUENCY REGULATORY COMPLIANCE INFORMATION FOR EVALUATION MODULES

NOTE: These EVM terms and conditions can be downloaded in PDF format.

Texas Instruments Incorporated (TI) evaluation boards, kits, and/or modules (EVMs) and/or accompanying hardware that is marketed, sold, or loaned to users may or may not be subject to radio frequency regulations in specific countries.

General Statement for EVMs Not Including a Radio

For EVMs not including a radio and not subject to the U.S. Federal Communications Commission (FCC) or Industry Canada (IC) regulations, TI intends EVMs to be used only for engineering development, demonstration, or evaluation purposes. EVMs are not finished products typically fit for general consumer use. EVMs may nonetheless generate, use, or radiate radio frequency energy, but have not been tested for compliance with the limits of computing devices pursuant to part 15 of FCC or the ICES-003 rules. Operation of such EVMs may cause interference with radio communications, in which case the user at his own expense will be required to take whatever measures may be required to correct this interference.

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General Statement for EVMs Including a Radio

User Power/Frequency Use Obligations: For EVMs including a radio, the radio included in such EVMs is intended for development and/or professional use only in legally allocated frequency and power limits. Any use of radio frequencies and/or power availability in such EVMs and their development application(s) must comply with local laws governing radio spectrum allocation and power limits for such EVMs. It is the user’s sole responsibility to only operate this radio in legally acceptable frequency space and within legally mandated power limitations. Any exceptions to this are strictly prohibited and unauthorized by TI unless user has obtained appropriate experimental and/or development licenses from local regulatory authorities, which is the sole responsibility of the user, including its acceptable authorization.

U.S. Federal Communications Commission Compliance For EVMs annotated as FCC – FEDERAL COMMUNICATIONS COMMISSION Part 15 Compliant

Caution

This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. Changes or modifications could void the user's authority to operate the equipment.

FCC Interference Statement for Class A EVM devices

This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at its own expense.

FCC Interference Statement for Class B EVM devices

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:

• Reorient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

Industry Canada Compliance (English) For EVMs annotated as IC – INDUSTRY CANADA Compliant

This Class A or B digital apparatus complies with Canadian ICES-003. Changes or modifications not expressly approved by the party responsible for compliance could void the

user’s authority to operate the equipment.

Concerning EVMs Including Radio Transmitters

This device complies with Industry Canada licence-exempt RSS standard(s). Operation is subject to the following two conditions: (1) this device may not cause interference, and (2) this device must accept any interference, including interference that may cause undesired operation of the device.

EVM Important Notices

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Concerning EVMs Including Detachable Antennas

Under Industry Canada regulations, this radio transmitter may only operate using an antenna of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To reduce potential radio interference to other users, the antenna type and its gain should be so chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that necessary for successful communication.

This radio transmitter has been approved by Industry Canada to operate with the antenna types listed in the user guide with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this device.

Canada Industry Canada Compliance (French)

Cet appareil numérique de la classe A ou B est conforme à la norme NMB-003 du Canada Les changements ou les modifications pas expressément approuvés par la partie responsable de la

conformité ont pu vider l’autorité de l'utilisateur pour actionner l'équipement.

Concernant les EVMs avec appareils radio

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1) l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en compromettre le fonctionnement.

Concernant les EVMs avec antennes détachables

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas l'intensité nécessaire à l'établissement d'une communication satisfaisante.

Le présent émetteur radio a été approuvé par Industrie Canada pour fonctionner avec les types d'antenne énumérés dans le manuel d’usage et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour l'exploitation de l'émetteur.

www.ti.com

8.3 Important Notice for Users of EVMs Considered “Radio Frequency Products” in Japan

NOTE: These EVM terms and conditions can ber downloaded in PDF format.

EVMs entering Japan are NOT certified by TI as conforming to Technical Regulations of Radio Law of Japan.

If user uses EVMs in Japan, user is required by Radio Law of Japan to follow the instructions below with respect to EVMs:

1. Use EVMs in a shielded room or any other test facility as defined in the notification #173 issued by

Ministry of Internal Affairs and Communications on March 28, 2006, based on Sub-section 1.1 of Article 6 of the Ministry’s Rule for Enforcement of Radio Law of Japan,

2. Use EVMs only after user obtains the license of Test Radio Station as provided in Radio Law of Japan

with respect to EVMs, or

3. Use of EVMs only after user obtains the Technical Regulations Conformity Certification as provided in

Radio Law of Japan with respect to EVMs. Also, do not transfer EVMs, unless user gives the same notice above to the transferee. Please note that if user does not follow the instructions above, user will be subject to penalties of Radio Law of Japan.

http://www.tij.co.jp

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【無線電波を送信する製品の開発キットをお使いになる際の注意事項】本開発キットは技術基準適合証明を受けておりまご使用に際しては、電波法遵守のため、以下のいずれかの措置を取っていただく必要がありますのでご注意ください。

1. 電波法施行規則第6条第1項第1号に基づく平成18年3月28日総務省告示第173号で定められた電波暗室

2. 実験局の免許を取得後ご使用いただく。

3. 技術基準適合証明を取得後ご使用いただく。。

なお、本製品は、上記の「ご使用にあたっての注意」を譲渡先、移転先に通知しない限り、譲渡、移転できないものとし

上記を遵守頂けない場合は、電波法の罰則が適用される可能性があることをご留意ください。日本テキサス・インスツルメンツ株式会社東京都新宿区西新宿６丁目２４番１号西新宿三井ビル

http://www.tij.co.jp Texas Instruments Japan Limited (address) 24-1, Nishi-Shinjuku 6 chome, Shinjuku-ku, Tokyo, Japan

EVM Important Notices

等の試験設備でご

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IMPORTANT NOTICE FOR TI REFERENCE DESIGNS

Texas Instruments Incorporated ("TI") reference designs are solely intended to assist designers (“Buyers”) who are developing systems that incorporate TI semiconductor products (also referred to herein as “components”). Buyer understands and agrees that Buyer remains responsible for using its independent analysis, evaluation and judgment in designing Buyer’s systems and products.

TI reference designs have been created using standard laboratory conditions and engineering practices. TI has not conducted any testing other than that specifically described in the published documentation for a particular reference design. TI may make corrections, enhancements, improvements and other changes to its reference designs.

Buyers are authorized to use TI reference designs with the TI component(s) identified in each particular reference design and to modify the reference design in the development of their end products. HOWEVER, NO OTHER LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE TO ANY OTHER TI INTELLECTUAL PROPERTY RIGHT, AND NO LICENSE TO ANY THIRD PARTY TECHNOLOGY OR INTELLECTUAL PROPERTY RIGHT, IS GRANTED HEREIN, including but not limited to any patent right, copyright, mask work right, or other intellectual property right relating to any combination, machine, or process in which TI components or services are used. Information published by TI regarding third-party products or services does not constitute a license to use such products or services, or a warranty or endorsement thereof. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.

TI REFERENCE DESIGNS ARE PROVIDED "AS IS". TI MAKES NO WARRANTIES OR REPRESENTATIONS WITH REGARD TO THE REFERENCE DESIGNS OR USE OF THE REFERENCE DESIGNS, EXPRESS, IMPLIED OR STATUTORY, INCLUDING ACCURACY OR COMPLETENESS. TI DISCLAIMS ANY WARRANTY OF TITLE AND ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT, QUIET POSSESSION, AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHTS WITH REGARD TO TI REFERENCE DESIGNS OR USE THEREOF. TI SHALL NOT BE LIABLE FOR AND SHALL NOT DEFEND OR INDEMNIFY BUYERS AGAINST ANY THIRD PARTY INFRINGEMENT CLAIM THAT RELATES TO OR IS BASED ON A COMBINATION OF COMPONENTS PROVIDED IN A TI REFERENCE DESIGN. IN NO EVENT SHALL TI BE LIABLE FOR ANY ACTUAL, SPECIAL, INCIDENTAL, CONSEQUENTIAL OR INDIRECT DAMAGES, HOWEVER CAUSED, ON ANY THEORY OF LIABILITY AND WHETHER OR NOT TI HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES, ARISING IN ANY WAY OUT OF TI REFERENCE DESIGNS OR BUYER’S USE OF TI REFERENCE DESIGNS.

TI reserves the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete. All semiconductor products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment.

TI warrants performance of its components to the specifications applicable at the time of sale, in accordance with the warranty in TI’s terms and conditions of sale of semiconductor products. Testing and other quality control techniques for TI components are used to the extent TI deems necessary to support this warranty. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed.

TI assumes no liability for applications assistance or the design of Buyers’ products. Buyers are responsible for their products and applications using TI components. To minimize the risks associated with Buyers’ products and applications, Buyers should provide adequate design and operating safeguards.

Reproduction of significant portions of TI information in TI data books, data sheets or reference designs is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. TI is not responsible or liable for such altered documentation. Information of third parties may be subject to additional restrictions.

Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of TI components in its applications, notwithstanding any applications-related information or support that may be provided by TI. Buyer represents and agrees that it has all the necessary expertise to create and implement safeguards that anticipate dangerous failures, monitor failures and their consequences, lessen the likelihood of dangerous failures and take appropriate remedial actions. Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in Buyer’s safety-critical applications.

In some cases, TI components may be promoted specifically to facilitate safety-related applications. With such components, TI’s goal is to help enable customers to design and create their own end-product solutions that meet applicable functional safety standards and requirements. Nonetheless, such components are subject to these terms.

No TI components are authorized for use in FDA Class III (or similar life-critical medical equipment) unless authorized officers of the parties have executed an agreement specifically governing such use.

Only those TI components that TI has specifically designated as military grade or “enhanced plastic” are designed and intended for use in military/aerospace applications or environments. Buyer acknowledges and agrees that any military or aerospace use of TI components that have not been so designated is solely at Buyer's risk, and Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use.

TI has specifically designated certain components as meeting ISO/TS16949 requirements, mainly for automotive use. In any case of use of non-designated products, TI will not be responsible for any failure to meet ISO/TS16949.IMPORTANT NOTICE

Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265

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