SPRUHZ7K August 2015 – April 2024 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
Some of the capture inputs and compare registers are mapped to specific industrial ethernet functions in hardware, shown in Table 30-360. All capture inputs are mapped to industrial ethernet functions, and these inputs are not available for any other application. The cmp1 and cmp2 compare registers also function as the start time triggers for SYNC0 and SYNC1, respectively.
| Capture Input | PRU-ICSS IEP line/function |
|---|---|
| CAP[0], rise only | PRU0_RX_SOF |
| CAP[1], rise only | PRU0_RX_SFD |
| CAP[2], rise only | PRU1_RX_SOF |
| CAP[3], rise only | PRU1_RX_SFD |
| CAP[4], rise only | PORT0_TX_SOF |
| CAP[5], rise only | PORT1_TX_SOF |
| CAP[6], rise and fall | pr1/2_edc_latch0_in (device input pin) |
| CAP[7], rise and fall | p1/2_edc_latch1_in (device input pin) |
| cmp[1] | For Sync0 trigger of start time |
| cmp[2] | For Sync1 trigger of start time; only valid in the independent mode |
| cmp[3] | For MII TX start trigger, if PRUSS_MII_RT_TXCFG0[0] TX_EN_MODE is enabled |
| cmp[4] | For MII TX start trigger, if PRUSS_MII_RT_TXCFG1[0] TX_EN_MODE is enabled |