ZHCS762F December 2011 – May 2017 TRF7963A
PRODUCTION DATA.
Table 6-37 describes the bit fields of the FIFO Status register. This register contains the low nibbles of the complete bytes to be transferred through the FIFO and information about a broken byte and the number of bits to be transferred from it.
| BIT NO. | BIT NAME | FUNCTION | DESCRIPTION |
|---|---|---|---|
| B7 | RFU | B7 = 0 | Reserved for future use (RFU) |
| B6 | Fhil | FIFO level high | Indicates that 9 bytes are already in the FIFO (for RX) (also see register 0x0C bit 5) |
| B5 | Flol | FIFO level low | Indicates that only 3 bytes are in the FIFO (for TX) (also see register 0x0C bit 5) |
| B4 | Fove | FIFO overflow error | Too many bytes were written to the FIFO |
| B3 | Fb3 | FIFO bytes fb[3] | Bits B0:B3 indicate how many bytes that are loaded in FIFO were not read out yet (displays N – 1 number of bytes). If 8 bytes are in the FIFO, this number is 7 (also see register 0x0C bit 6). |
| B2 | Fb2 | FIFO bytes fb[2] | |
| B1 | Fb1 | FIFO bytes fb[1] | |
| B0 | Fb0 | FIFO bytes fb[0] |