Datasheet

SAM9G20
DS60001516A-page 516  2017 Microchip Technology Inc.
32.8.5 SSC Transmit Clock Mode Register
Name:SSC_TCMR
Access:Read/Write
CKS: Transmit Clock Selection
CKO: Transmit Clock Output Mode Selection
CKI: Transmit Clock Inversion
0: The data outputs (Data and Frame Sync signals) are shifted out on Transmit Clock falling edge. The Frame sync signal input is sampled
on Transmit clock rising edge.
1: The data outputs (Data and Frame Sync signals) are shifted out on Transmit Clock rising edge. The Frame sync signal input is sampled
on Transmit clock falling edge.
CKI affects only the Transmit Clock and not the output clock signal.
CKG: Transmit Clock Gating Selection
31 30 29 28 27 26 25 24
PERIOD
23 22 21 20 19 18 17 16
STTDLY
15 14 13 12 11 10 9 8
–––– START
76543210
CKG CKI CKO CKS
CKS Selected Transmit Clock
0x0 Divided Clock
0x1 RK Clock signal
0x2 TK Pin
0x3 Reserved
CKO Transmit Clock Output Mode TK pin
0x0 None Input-only
0x1 Continuous Transmit Clock Output
0x2 Transmit Clock only during data transfers Output
0x3–0x7 Reserved
CKG Transmit Clock Gating
0x0 None, continuous clock
0x1 Transmit Clock enabled only if TF Low
0x2 Transmit Clock enabled only if TF High
0x3 Reserved