SPRUJ17I March 2022 – August 2025 AM2631 , AM2631-Q1 , AM2632 , AM2632-Q1 , AM2634 , AM2634-Q1
The RX_TRIGx external trigger can be used to initiate FSITX transmission. RX_TRIG0 must be used if TDM mode (multi-node configuration) is required. RX_TRIG0 must be used as the trigger source for start of transmission while the programmable stretch width RX_TRIG0 signal is used as the SEL_TDM_PATH signal (which decides whether the local FSITX is active or put in bypass mode).
Figure 7-307 RX_TRIGx FSI Trigger
The signal source for the RX_TRIGx signal is selected through the RX_TRIG_CTRL_x.TRIG_SEL bits, as listed in Table 7-149.
| RX_TRIG_CTRLx.TRIG_SEL | Selected Signal |
|---|---|
| 0 | Ping Packet Received |
| 1 | Data Packet Received |
| 2 | Error Packet Received |
| 3 | Ping Frame Tag Match Occurred |
| 4 | Data Frame Tag Match Occurred |
| 5 | Error Frame Tag Match Occurred |
| 6 | Frame Done |
| 7 | Reserved |
| 8 to 15 | Reserved |
The RX_TRIGx signals can optionally be delayed (this can be used in TDM scenarios) through the RX_TRIG_CTRL_x.TRIG_DLY.