The following table lists the bidirectional PMC multiplexed I/Os (MIOs) and their functions used in the SelectMAP boot mode setup.
| PMC_MIO Pin | Signal Name | Description |
|---|---|---|
| 18 | SMAP_CLK | SelectMAP clock output |
| 14 | SMAP_IO[0] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 15 | SMAP_IO[1] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 16 | SMAP_IO[2] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 17 | SMAP_IO[3] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 22 | SMAP_IO[4] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 23 | SMAP_IO[5] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 24 | SMAP_IO[6] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 25 | SMAP_IO[7] | Data pin used in SelectMAP boot mode (8-bit, 16-bit, 32-bit) |
| 28 | SMAP_IO[8] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 29 | SMAP_IO[9] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 30 | SMAP_IO[10] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 31 | SMAP_IO[11] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 32 | SMAP_IO[12] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 33 | SMAP_IO[13] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 34 | SMAP_IO[14] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 35 | SMAP_IO[15] | Data pin used in SelectMAP boot mode (16-bit, 32-bit) |
| 36 | SMAP_IO[16] | Data pin used in SelectMAP boot mode (32-bit) |
| 37 | SMAP_IO[17] | Data pin used in SelectMAP boot mode (32-bit) |
| 38 | SMAP_IO[18] | Data pin used in SelectMAP boot mode (32-bit) |
| 39 | SMAP_IO[19] | Data pin used in SelectMAP boot mode (32-bit) |
| 40 | SMAP_IO[20] | Data pin used in SelectMAP boot mode (32-bit) |
| 41 | SMAP_IO[21] | Data pin used in SelectMAP boot mode (32-bit) |
| 42 | SMAP_IO[22] | Data pin used in SelectMAP boot mode (32-bit) |
| 43 | SMAP_IO[23] | Data pin used in SelectMAP boot mode (32-bit) |
| 44 | SMAP_IO[24] | Data pin used in SelectMAP boot mode (32-bit) |
| 45 | SMAP_IO[25] | Data pin used in SelectMAP boot mode (32-bit) |
| 46 | SMAP_IO[26] | Data pin used in SelectMAP boot mode (32-bit) |
| 47 | SMAP_IO[27] | Data pin used in SelectMAP boot mode (32-bit) |
| 48 | SMAP_IO[28] | Data pin used in SelectMAP boot mode (32-bit) |
| 49 | SMAP_IO[29] | Data pin used in SelectMAP boot mode (32-bit) |
| 50 | SMAP_IO[30] | Data pin used in SelectMAP boot mode (32-bit) |
| 51 | SMAP_IO[31] | Data pin used in SelectMAP boot mode (32-bit) |
| 19 | SMAP_CS_b | Chip select input enables the
SelectMAP bus When CS_b is Low, the SelectMAP interface is enabled When CS_b is High, the SelectMAP interface is disabled |
| 20 | SMAP_RDWR_b | Read/Write input that controls
whether the data pins are inputs or outputs When RDWR_b is High, data is output or read onto the SelectMAP data bus When RDWR_b is Low, an external controller can write data or boot and configure the device through the SelectMAP data bus interface |
| 21 | SMAP_BUSY | Busy output is High when there are 24 clock cycles left before the SBI FIFO data buffer overflows |
In addition to the SelectMAP MIO interface pins, dedicated pins are also required for all boot modes including SelectMAP. For more information, see Power and PMC Dedicated Pins. MODE[3:0], REF_CLK, POR_B are critical inputs and DONE, ERROR_OUT are key status monitoring signals.