RTT4B=B_0x0, RTT1B=B_0x0
PSSI status register
RTT4B | FIFO is ready to transfer four bytes 0 (B_0x0): FIFO is not ready for a four-byte transfer 1 (B_0x1): FIFO is ready for a four-byte (32-bit) transfer. |
RTT1B | FIFO is ready to transfer one byte 0 (B_0x0): FIFO is not ready for a 1-byte transfer 1 (B_0x1): FIFO is ready for a one byte (32-bit) transfer. |