FSOS=NONE, FSEDGE=POSITIVE
Receive Frame Mode Register
| DATLEN | Data Length |
| LOOP | Loop Mode |
| MSBF | Most Significant Bit First |
| DATNB | Data Number per Frame |
| FSLEN | Receive Frame Sync Length |
| FSOS | Receive Frame Sync Output Selection 0 (NONE): None, RF pin is an input 1 (NEGATIVE): Negative Pulse, RF pin is an output 2 (POSITIVE): Positive Pulse, RF pin is an output 3 (LOW): Driven Low during data transfer, RF pin is an output 4 (HIGH): Driven High during data transfer, RF pin is an output 5 (TOGGLING): Toggling at each start of data transfer, RF pin is an output |
| FSEDGE | Frame Sync Edge Detection 0 (POSITIVE): Positive Edge Detection 1 (NEGATIVE): Negative Edge Detection |
| FSLEN_EXT | FSLEN Field Extension |