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| R1000AX Signal Name | Description | Polarity | Type | Photon | Electron | C.H.I.P. Pro |
|---|---|---|---|---|---|---|
| !RESET | LPC1769 reset pin | Active Low | Open Drain | A5 | A5 | PB2/SPDIF-DO/PWM0 |
| ISP/Module Reset | LPC1769 boot pin AND module reset | Active Low | Open Drain | A4 | A4 | PG13/EINT13/PWM1 |
| SWDCLK | LPC1769 SWD clock | - | Push-Pull, tie low or leave floating for normal operation | A3 | A3 | PD4/UART2-CTS |
| SWDIO | LPC1769 SWD data | - | Push-Pull, leave floating for normal operation | A2 | A2 | PD5/UART2-RTS |
| RXD0 | LPC1769 UART0 RX pin | - | Input to LPC1769, output from compute module | TX | TX | PD2/UART2-TX |
| TXD0 | LPC1769 UART0 TX pin | - | Output from LPC1769, input to compute module | RX | RX | PD3/UART2-RX |
| COMPUTE_USB+/- | Host USB from compute module (C.H.I.P. Pro) | Differential Pair | USB 2.0 | - | - | USB0-UDM0/UDP0 |
| +5V | 5V supply from R1000AX to power compute module | - | Power pin | VIN | VIN | CHG-IN |
This is the footprint for the compute module
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