Uart Interface; Table 4-4. I2C Devices And Addresses - Texas Instruments AM273 Series User Manual

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4.5.1 I2C Connections
The board features temperature sensor for measuring onboard temperature, current sensors for current
measurement for 1.2V, 1.8V, and 3.3V AM273x supply rails, and EEPROM for storing board ID. These are
connected to the AM273x EVM through the I2C bus.
Table 4-4 shows the list of I2C devices available in the AM273x EVM board and the address.
Sensor Type
Temp sensor
Current sensor for 3.3V rail
Current sensor for 1.8V rail
Current sensor for 1.2V Digital rail
Current sensor for 1.2V SRAM rail
EEPROM

4.6 UART Interface

The AM273x is composed of four UART interfaces:
• Two Main Subsystem Modules (MSS_UARTA and MSS_UARTB)
– MSS_UARTA_RX and MSS_UARTA_TX are accessible through the XDS110 USB port (J8) via the XDS
emulator.
– MSS_UARTB_TX is available via the XDS110 USB port (J8) via the XDS emulator while
MSS_UARTB_RX is not accessible by the default pin mux on the AM273x EVM.
• One Radar Controller Subsystem Module (RCSS_UARTA)
– RCSS_UARTA is not available in the standard hardware configuration of the AM273x EVM. However,
this port can be accessed if resistors R160 and R164 are depopulated with resistors R156 and
R159 populated with 0 ohm resistors. This alteration makes RCSS_UARTA_RX and RCSS_UARTA_TX
accessible via the FTDI USB port (J8) as replacements of the DSS_UART interface.
• One DSP Subsystem Module (DSS_UARTA)
– DSS_UARTA_RX and DSS_UARTA_TX are accessible through the FTDI USB port (J10) via the
FT4232HL UART - USB Bridge.
SPRUIY1B – NOVEMBER 2020 – REVISED FEBRUARY 2024
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Table 4-4. I2C Devices and Addresses

Reference Designator
U24 TMP112AIDRLR
U12 INA226AIDGSR
U11 INA226AIDGSR
U9 INA226AIDGSR
U25 INA226AIDGSR
U28 CAV24C02WE-GT3
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Part Number Peripheral Address
AM273x Evaluation Module
Hardware Description
0x49
0x44
0x41
0x40
0x45
0x50
23