The debug module supports up to 16 GPIOs. Some of the GPIOs are used for the internal configuration of the debug module. Others are available as reset, control, or general-purpose I/O pins to the card. The following table provides a summary of 16 GPIO signals. The functionality of these signals might differ between cards. See card specific documentation for GPIO details.
| I2C MUX | ADK2 | Description |
|---|---|---|
| MUX_PIO_00 |
RESERVED
|
Reserved Must be asserted for proper operation. |
| MUX_PIO_01 | SMARTLYNK_FTDI_JTAG_SEL |
0: Selects SmartLynq for AMD device JTAG. 1: Selects FTDI for AMD device JTAG (default). |
| MUX_PIO_02 | IO_EXP_P02_FPGA_SRST |
AMD device soft reset. 0: Device in normal operation. 1: Open-drain reset (default). |
| MUX_PIO_03 | IO_EXP_P03_SOC_RST |
SoC reset 0: 1: Open-drain reset (default). |
| MUX_PIO_04 | IO_EXP_P04_SUC_RST |
SuC reset 0: 1: Open-drain reset (default). |
| MUX_PIO_05 | IO_EXP_P05_DUT_PG_B |
Card power cord Input from the card. Asserted when the card is power good. |
| MUX_PIO_06 | USBA_SEL | Reserved |
| MUX_PIO_07 | R_DB_SUC_JTAG_TDI |
Reserved |
| MUX_PIO_10 | SUC_UART_EN_B |
SuC UART enable 0: SuC UART enabled (default). 1: SuC UART disabled. |
| MUX_PIO_11 | FPGA_UART_EN_B |
AMD device UART enable 0: AMD device UART enabled (default). 1: AMD device UART disabled. |
| MUX_PIO_12 | SOC_UART_EN_B |
SoC UART enable 0: SoC UART enabled (default). 1: SoC UART disabled. |
| MUX_PIO_13 | IO_EXP_P13 | GPIO |
| MUX_PIO_14 | IO_EXP_P14 | GPIO |
| MUX_PIO_15 | IO_EXP_P15 | GPIO |
| MUX_PIO_16 | IO_EXP_P16 |
0: Mask debug module presence. 1: Allows debug module presence to be advertised card. |
| MUX_PIO_17 | IO_EXP_P17 | Reserved |