One vertical 10-pin PicoClasp connectors provide sideband access. The following table lists the ARF6 I2C details along with the respective reset per ARF6.
| Port Name | FPGA Pin | Sideband Connector Pin | Description |
|---|---|---|---|
| ARF_I2C_SCL | M14 | 6 | Expansion port I2C interface. |
| ARF_I2C_SDA | M13 | 5 | Expansion port I2C interface. |
| ARF_IO0_RST | K15 | 3 | Expansion port ARF6-0 reset. |
| ARF_IO1_RST | L15 | 4 | Expansion port ARF6-1 reset. |
| ARF_MUX_INTN | L13 | 8 | MUXed expansion port interrupt. |
| ARF_MUX_RESET | K16 | 7 | MUX expansion port reset. |
| 3.3V | 1 | Power | |
| GND | 10 | Ground |
Note: The RX polarity of the GTs need to be inverted on the ARF
connector when using a loopback cable.