Datasheet

SAM9G45 [DATASHEET]
Atmel-6438O-ATARM-SAM9G45-Datasheet_08-Dec-15
664
Figure 33-14. Transmit and Receive Frame Format in Edge/Pulse Start Modes
Note: 1. Example of input on falling edge of TF/RF.
Figure 33-15. Transmit Frame Format in Continuous Mode
Note: 1. STTDLY is set to 0. In this example, SSC_THR is loaded twice. FSDEN value has no effect on the transmission.
SyncData cannot be output in continuous mode.
Figure 33-16. Receive Frame Format in Continuous Mode
Note: 1. STTDLY is set to 0.
33.7.8 Loop Mode
The receiver can be programmed to receive transmissions from the transmitter. This is done by setting the Loop
Mode (LOOP) bit in SSC_RFMR. In this case, RD is connected to TD, RF is connected to TF and RK is connected
to TK.
Sync Data Default
STTDLY
Sync Data
Ignored
RD
Default
Data
DATLEN
Data
Data
Data
DATLEN
Data
Data
Default
Default
Ignored
Sync Data
Sync Data
FSLEN
TF/RF
(1)
Start
Start
From SSC_TSHR From SSC_THR
From SSC_THR
From SSC_THR
From SSC_THR
To SSC_RHR To SSC_RHRTo SSC_RSHR
TD
(If FSDEN = 0)
TD
(If FSDEN = 1)
DATNB
PERIOD
FromDATDEF
FromDATDEF
From DATDEF
From DATDEF
DATLEN
Data
DATLEN
Data
Default
Start
From SSC_THR From SSC_THR
TD
Start: 1. TXEMPTY set to 1
2. Write into the SSC_THR
Data
DATLEN
Data
DATLEN
Start = Enable Receiver
To SSC_RHR
To SSC_RHR
RD