14.7.6 CxTXREQ Register

The CxTXREQ register contains the TXREQ[31:0] bits of the TXQ and of all the TX FIFOs. They have the following purposes:

• The user application can request transmission of the TXQ and/or one or more TX FIFOs by setting the corresponding bits in the CxTXREQ register. Clearing a bit does NOT abort any transmissions.
• Reading the CxTXREQ register gives information about which transmit FIFOs have transmissions pending.

CxTXREQ[0] is mapped to the TXQ, CxTXREQ[1] is mapped to TX FIFO 1, CxTXREQ[2] is mapped to TX FIFO 2 and so on. CxTXREQ[31] is mapped to TX FIFO 31.