SAM7X256_14 Datasheet, PDF (346/662 Pages) ATMEL Corporation – ARM-based Flash MCU

31.6.7 Data Format
The data framing format of both the transmitter and the receiver are programmable through the Transmitter Frame Mode
Register (SSC_TFMR) and the Receiver Frame Mode Register (SSC_RFMR). In either case, the user can independently
select:
 the event that starts the data transfer (START)
 the delay in number of bit periods between the start event and the first data bit (STTDLY)
 the length of the data (DATLEN)
 the number of data to be transferred for each start event (DATNB).
 the length of synchronization transferred for each start event (FSLEN)
 the bit sense: most or lowest significant bit first (MSBF).
Additionally, the transmitter can be used to transfer synchronization and select the level driven on the TD pin while not in
data transfer operation. This is done respectively by the Frame Sync Data Enable (FSDEN) and by the Data Default
Value (DATDEF) bits in SSC_TFMR.
SAM7X Series [DATASHEET]
6120K–ATARM–11-Feb-14
346