AT91SAM9261_14 Datasheet, PDF (479/749 Pages) ATMEL Corporation – DSP Instruction Extensions

AT91SAM9261
Table 33-3. Data Frame Registers
Transmitter
Receiver
Field
SSC_TFMR
SSC_RFMR
DATLEN
SSC_TFMR
SSC_RFMR
DATNB
SSC_TFMR
SSC_RFMR
MSBF
SSC_TFMR
SSC_RFMR
FSLEN
SSC_TFMR
DATDEF
SSC_TFMR
FSDEN
SSC_TCMR
SSC_RCMR
PERIOD
SSC_TCMR
SSC_RCMR
STTDLY
Length
Up to 32
Up to 16
Up to 16
0 or 1
Up to 512
Up to 255
Comment
Size of word
Number of words transmitted in frame
Most significant bit first
Size of Synchro data register
Data default value ended
Enable send SSC_TSHR
Frame size
Size of transmit start delay
Figure 33-13. Transmit and Receive Frame Format in Edge/Pulse Start Modes
Start
PERIOD
TF/RF⁽¹⁾
FSLEN
TD
(If FSDEN = 1)
Sync Data
Default
From SSC_TSHR FromDATDEF
Data
From SSC_THR
TD
(If FSDEN = 0)
RD
Default
From DATDEF
Sync Data
To SSC_RSHR
Ignored
Data
From SSC_THR
Data
To SSC_RHR
Start
Data
From SSC_THR
Default
Sync Data
FromDATDEF
Data
From SSC_THR
Default
From DATDEF
Data
To SSC_RHR
Ignored
Sync Data
STTDLY
DATLEN
DATLEN
DATNB
Note: 1. Example of input on falling edge of TF/RF.
Figure 33-14. Transmit Frame Format in Continuous Mode
Start
6062N–ATARM–3-Oct-11
TD
Data
Data
From SSC_THR
From SSC_THR
DATLEN
DATLEN
Start: 1. TXEMPTY set to 1
2. Write into the SSC_THR
Default
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