SPRUJA1 October 2023
The AM62x SIP 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.
Following interfaces and IOs shall be included on to the 40 pin User Expansion connector.
Each of the power supplies 5 V and 3.3V are current limited to 155 mA and 500 mA, respectively. This is achieved by using two individual load switch TPS22902YFPR and TPS22946YZPR. Enable for the load switches is driven by I2C based GPIO Port expander.
Signals routed from User Expansion connector are listed in the table below.
Pin Number | SoCBall | Net Name | Pin Multiplexed Signals |
---|---|---|---|
1 | - | VCC3V3_EXP | |
2 | - | VCC5V0_EXP | |
3 | K24 | SoC_I2C2_SDA | GPMC0_CSN3/ GPMC0_A20/ UART4_TXD/MCASP1_AXR5/ TRC_DATA18/ GPIO0_44/ MCASP1_ACLKR |
4 | - | VCC5V0_EXP | |
5 | K22 |
SoC_I2C2_SCL |
GPMC0_CSN2/MCASP1_AXR4/ UART4_RXD/ PR0_PRU0_GPO19/ PR0_PRU0_GPI19/ TRC_DATA17/ GPIO0_43/ MCASP1_AFSR |
6 | - | DGND | |
7 | A18 |
EXP_CLKOUT0 |
EXT_REFCLK1/ SYNC1_OUT/ SPI2_CS3/SYSCLKOUT0/ TIMER_IO4/ CLKOUT0/ CP_GEMAC_CPTS0_RFT_CLK/ GPIO1_30/ ECAP0_IN_APWM_OUT |
8 | E15 |
EXP_UART5_TXD |
UART5_TXD/ TIMER_IO3/ SYNC3_OUT/UART1_RIn/ EQEP2_S/ PR0_UART0_TXD/ GPIO1_25/ MCASP2_AXR1/ EHRPWM_TZn_IN4 |
9 | - | DGND | |
10 | C15 |
EXP_UART5_RXD |
UART5_RXD/ TIMER_IO2/ SYNC2_OUT/UART1_DTRn/ EQEP2_I/ PR0_UART0_RXD/ GPIO1_24/ MCASP2_AXR0/ EHRPWM_TZn_IN3 |
11 | B20 | EXP_SPI2_CS1 | MCASP0_ACLKX/ SPI2_CS1/ECAP2_IN_APWM_OUT/ GPIO1_11/ EQEP1_A |
12 | E19 | EXP_SPI2_CS0/EHRPWM0_A | MCASP0_AFSR/SPI2_CS0/ UART1_RXD/ EHRPWM0_A/ GPIO1_13/ EQEP1_S |
13 | L21 |
EXP_GPIO0_42 |
GPMC0_CSn1/ PR0_PRU1_GPO16/PR0_PRU1_GPI16/ MCASP2_AXR15/ PR0_PRU0_GPO18/ PR0_PRU0_GPI18/ TRC_DATA16/ GPIO0_42 |
14 | - | DGND | |
15 | L23 |
EXP_GPIO0_32 |
GPMC0_ADVn_ALE/ MCASP1_AXR2/PR0_PRU0_GPO9/ PR0_PRU0_GPI9/ TRC_DATA7/ GPIO0_32 |
16 | V25 | EXP_GPIO0_38 | GPMC0_WAIT1/ VOUT0_EXTPCLKIN/GPMC0_A21/ UART6_RXD/ GPIO0_38/ EQEP2_I |
17 | - | VCC3V3_EXP | |
18 | K25 |
EXP_GPIO0_39 |
GPMC0_WPn/ AUDIO_EXT_REFCLK1/GPMC0_A22/ UART6_TXD/ PR0_PRU0_GPO15/ PR0_PRU0_GPI15/ TRC_DATA13/ GPIO0_39 |
19 | B13 | EXP_SPI0_D0 | SPI0_D0/ CP_GEMAC_CPTS0_HW1TSPUSH/ EHRPWM1_B/ GPIO1_18 |
20 | - | DGND | |
21 | B14 | EXP_SPI0_D1 | SPI0_D1/ CP_GEMAC_CPTS0_HW2TSPUSH/ HRPWM_TZn_IN0/GPIO1_19 |
22 |
E24 |
EXP_GPIO0_14 |
OSPI0_CSn3/ OSPI0_RESET_OUT0/OSPI0_ECC_FAIL/ MCASP1_ACLKR/ MCASP1_AXR3/ UART5_TXD/ GPIO0_14 |
23 | A14 | EXP_SPI0_CLK | SPI0_CLK/ CP_GEMAC_CPTS0_TS_SYNC/EHRPWM1_A/ GPIO1_17 |
24 | A13 | EXP_SPI0_CS0 | SPI0_CS0/ EHRPWM0_A/ PR0_ECAP0_SYNC_IN/GPIO1_15 |
25 | - | DGND | |
26 |
C13 |
EXP_SPI0_CS1 |
SPI0_CS1/ CP_GEMAC_CPTS0_TS_COMP/EHRPWM0_B/ ECAP0_IN_APWM_OUT/ GPIO1_16/ EHRPWM_TZn_IN5 |
27 |
A16 |
SoC_I2C0_SDA |
I2C0_SDA/ PR0_IEP0_EDIO_DATA_IN_OUT31/ SPI2_CS2/ TIMER_IO5/ UART1_DSRn/EQEP2_B/ EHRPWM_SOCB/ GPIO1_27/ ECAP2_IN_APWM_OUT |
28 |
B16 |
SoC_I2C0_SCL |
I2C0_SCL/ PR0_IEP0_EDIO_DATA_IN_OUT30/ SYNC0_OUT/ OBSCLK0/ UART1_DCDn/EQEP2_A EHRPWM_SOCA/ GPIO1_26/ ECAP1_IN_APWM_OUT / SPI2_CS0 |
29 |
N20 |
EXP_GPIO0_36 |
GPMC0_BE1n/ MCASP2_AXR12/PR0_PRU0_GPO13/ PR0_PRU0_GPI13/ TRC_DATA11/ GPIO0_36 |
30 | - | DGND | |
31 |
L24 |
EXP_GPIO0_33 |
GPMC0_OEn_REn/ MCASP1_AXR1/PR0_PRU0_GPO10/ PR0_PRU0_GPI10/ TRC_DATA8/ GPIO0_33 |
32 |
M22 |
EXP_GPIO0_40/PR0_ECAP0_IN_APWM_OUT |
GPMC0_DIR/ PR0_ECAP0_IN_APWM_OUT/MCASP2_AXR13/ PR0_PRU0_GPO16/ PR0_PRU0_GPI16/ TRC_DATA14/ GPIO0_40/ EQEP2_S |
33 |
E18 |
EXP_EHRPWM1_B |
MCASP0_AXR0/ PR0_ECAP0_IN_APWM_OUT/AUDIO_EXT_REFCLK0/ PR0_UART0_TXD/ EHRPWM1_B/ GPIO1_10/ EQEP0_I |
34 | - | DGND | |
35 |
A19 |
EXP_SPI2_D1/ECAP2_IN_APWM_OUT |
MCASP0_AXR2/ SPI2_D1/ UART1_RTSn/UART6_TXD/ PR0_IEP0_EDIO_DATA_IN_OUT29/ ECAP2_IN_APWM_OUT/ PR0_UART0_TXD/ GPIO1_8/ EQEP0_B |
36 |
B18 |
EXP_SPI2_CS2 |
MCASP0_AXR1/ SPI2_CS2/ECAP1_IN_APWM_OUT/ PR0_UART0_RXD/ EHRPWM1_A/ GPIO1_9/ EQEP0_S |
37 |
M21 |
EXP_GPIO0_41 |
GPMC0_CSn0/ MCASP2_AXR14/PR0_PRU0_GPO17/ PR0_PRU0_GPI17/ TRC_DATA15/ GPIO0_41 |
38 |
B19 |
EXP_SPI2_D0 |
MCASP0_AXR3/ SPI2_D0/ UART1_CTSn/UART6_RXD/ PR0_IEP0_EDIO_DATA_IN_OUT28/ ECAP1_IN_APWM_OUT/ PR0_UART0_RXDGPIO1_7 EQEP0_A |
39 | - | EXP_HAT_DETECT | |
40 | A20 | EXP_SPI2_CLK | MCASP0_ACLKR/SPI2_CLK/ UART1_TXD/ EHRPWM0_B/ GPIO1_14/ EQEP1_I |