SPRUJ51 june 2023
The AM62x-Low Power SK EVM supports RPi expansion interface using a 40-pin User expansion connector Mfr. Part# PEC20DAAN. Four mounting holes must be oriented with the connector to allow for connection of these boards.
The following interfaces and IOs are included on to the 40 pin User Expansion connector.
Each of the power supplies 5V and 3.3V are current limited to 155mA and 500mA respectively. This is achieved by using two individual load switches TPS22902YFPR and TPS22946YZPR. The Enable signals for the load switches is driven via I2C based GPIO Port expander.
Pin No. | SoC Ball | Net name | Comments |
---|---|---|---|
1 | - | VCC3V3_EXP | |
2 | - | VCC5V0_EXP | |
3 | H19 | EXP_I2C2_SDA | I2C SW |
4 | - | VCC5V0_EXP | |
5 | H18 | EXP_I2C2_SCL | I2C SW |
6 | - | DGND | |
7 | C14 | EXP_CLKOUT0 | |
8 | A15 | EXP_UART5_TXD | |
9 | - | DGND | |
10 | B13 | EXP_UART5_RXD | |
11 | C17 | EXP_SPI2_CS1 | |
12 | D15 | EXP_SPI2_CS0/EHRPWM0_A | MUX |
13 | H17 | EXP_GPIO0_42 | |
14 | - | DGND | |
15 | - | EXP_GPIO0_22 | |
16 | P17 | EXP_GPIO0_38 | |
17 | - | VCC3V3_EXP | |
18 | J20 | EXP_GPIO0_39 | |
19 | C12 | EXP_SPI0_D0 | |
20 | - | DGND | |
21 | A14 | EXP_SPI0_D1 | |
22 | E18 | EXP_GPIO0_14 | |
23 | D12 | EXP_SPI0_CLK | |
24 | C11 | EXP_SPI0_CS0 | |
25 | - | DGND | |
26 | D13 | EXP_SPI0_CS1 | |
27 | D14 | SoC_I2C0_SDA | |
28 | E12 | SoC_I2C0_SCL | |
29 | K18 | EXP_GPIO0_36 | |
30 | K20 | EXP_GPIO0_32 | |
31 | K21 | EXP_GPIO0_33 | |
32 | J19 | EXP_GPIO0_40/ PR0_ECAP0_IN_APWM_OUT | |
33 | D18 | EXP_EHRPWM1_B | |
34 | - | DGND | |
35 | B17 | EXP_SPI2_D1/ ECAP2_IN_APWM_OUT | MUX |
36 | A18 | EXP_SPI2_CS2 | |
37 | J18 | EXP_GPIO0_41 | |
38 | B18 | EXP_SPI2_D0 | MUX |
39 | - | EXP_HAT_DETECT | |
40 | D16 | EXP_SPI2_CLK | MUX |