2. MAIN_I2C1: This is interfaced to 16 bit GPIO expanders that is being used for all control signals and LED
controls, 8bit LED Driver with part number
TPIC2810,
Current Monitors with part number
INA226
to monitor
current of VDD_CORE, VDDAR_CORE, SoC_DVDD3V3, SoC_DVDD1V8, VDDA_1V8, VDD_DDR4 ,
Temperature sensor with part number
TMP100
, Display Interface with part number
OSD9616P0992-10
,
Test automation connector via voltage isolation. This I2C is also connected to a test header J4 for AM64x
processor slave operation. Pin outs of I2C test header is given in
.
Table 3-29. I2C Test Header (J4) Pin-out
Pin No.
Signal
1
SoC_I2C1_SCL
2
SoC_I2C0_SDA
3
DGND
4
INA_ALERT
5
NC
3. MAIN_I2C3: This is connected to the expansion board connector from a mux. I2C3 is muxed with the MCAN
signals. The default state of the mux is MCAN.
4. MCU_I2C0: This is connected to the safety connector.
5. MCU_I2C1: This is connected to the safety connector.
System Description
50
AM64x GP EVM User's Guide
SPRUIX0B – FEBRUARY 2021 – REVISED MARCH 2021
Copyright © 2021 Texas Instruments Incorporated