Port details for the Sparkfun XS1-L164 Development Board (pdf is here)
| Ports for XS1-L1 64 | ||||||
| Pin Name | Pin ID | 1-bit | 4-bit | 8-bit | 16-bit | Description |
| X0D0 | 16 | P1A0 | MISO | |||
| X0D1 | 15 | P1B0 | SS | |||
| X0D2 | 14 | P4A0 | P8A0 | P16A0 | JP15 #25 | |
| X0D3 | 12 | P4A1 | P8A1 | P16A1 | JP15 #24 | |
| X0D4 | 11 | P4B0 | P8A2 | P16A2 | JP15 #23 | |
| X0D5 | 10 | P4B1 | P8A3 | P16A3 | JP15 #22 | |
| X0D6 | 7 | P4B2 | P8A4 | P16A4 | JP15 #21 | |
| X0D7 | 5 | P4B3 | P8A5 | P16A5 | JP15 #20 | |
| X0D8 | 3 | P4A2 | P8A6 | P16A6 | JP15 #19 | |
| X0D9 | 2 | P4A3 | P8A7 | P16A7 | JP15 #18 | |
| X0D10 | 1 | P1C0 | SCK | |||
| X0D11 | 64 | P1D0 | MOSI | |||
| X0D12 | 63 | P1E0 | JP15 #17 | |||
| X0D13 | 62 | P1F0 | JP15 #16 | |||
| X0D14 | 59 | P4C0 | P8B0 | P16A8 | JP15 #15 | |
| X0D15 | 58 | P4C1 | P8B1 | P16A9 | JP15 #14 | |
| X0D16 | 57 | P4D0 | P8B2 | P16A1 | JP15 #13 / TXU1 | |
| X0D17 | 56 | P4D1 | P8B3 | P16A1 | JP15 #12 / TXU0 | |
| X0D18 | 55 | P4D2 | P8B4 | P16A1 | JP15 #11 / TXD0 | |
| X0D19 | 54 | P4D3 | P8B5 | P16A1 | JP15 #10 / TXD1 | |
| X0D20 | 51 | P4C2 | P8B6 | P16A1 | JP15 #9 | |
| X0D21 | 50 | P4C3 | P8B7 | P16A1 | JP15 #8 | |
| X0D22 | 49 | P1G0 | JP15 #7 | |||
| X0D23 | 48 | P1H0 | JP15 #6 / TX-O | |||
| X0D24 | 47 | P1I0 | JP15 #5 / RX-I | |||
| X0D25 | 46 | P1J0 | JP15 #4 | |||
| X0D26 | 45 | P4E0 | JP15 #3 | |||
| X0D27 | 44 | P4E1 | JP15 #2 | |||
| X0D32 | 36 | P4E2 | JP9 #5 | |||
| X0D33 | 35 | P4E3 | JP9 #6 | |||
| X0D34 | 34 | P1K0 | JP9 #7 | |||
| X0D35 | 33 | P1L0 | JP9 #8 | |||
| X0D36 | 42 | P1M0 | JP9 #1 | |||
| X0D37 | 41 | P1N0 | JP9 #2 | |||
| X0D38 | 39 | P1O0 | JP9 #3 | |||
| X0D39 | 38 | P1P0 | JP9 #4 | |||
