AT572D940HF_14 Datasheet, PDF (471/745 Pages) ATMEL Corporation – High Performance MagicV VLIW DSP

AT572D940HF Preliminary
A start can be programmed in the same manner on either side of the Transmit/Receive Clock
Register (RCMR/TCMR). Thus, the start could be on TF (Transmit) or RF (Receive).
Moreover, the Receiver can start when data is detected in the bit stream with the Compare
Functions.
Detection on TF/RF input/output is done by the field FSOS of the Transmit/Receive Frame Mode
Register (TFMR/RFMR).
Figure 27-10. Transmit Start Mode
TK
TF
(Input)
Start = Low Level on TF
TD
(Output)
Start = Falling Edge on TF
TD
(Output)
Start = High Level on TF
TD
(Output)
Start = Rising Edge on TF
TD
(Output)
Start = Level Change on TF
TD
(Output)
Start = Any Edge on TF
TD
(Output)
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
BO
B1
STTDLY
X
BO
B1
BO
B1
STTDLY
Figure 27-11. Receive Pulse/Edge Start Modes
RK
RF
(Input)
Start = Low Level on RF
RD
(Input)
Start = Falling Edge on RF
RD
(Input)
Start = High Level on RF
Start = Rising Edge on RF
RD
(Input)
RD
(Input)
Start = Level Change on RF
RD
(Input)
Start = Any Edge on RF
RD
(Input)
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
STTDLY
X
BO
B1
BO
B1
STTDLY
X
BO
B1
BO
B1
STTDLY
7010A–DSP–07/08
471