Rev. 1.0, 02/00, page 1084 of 1141
H'D241: Sync Separation Control Register SEPCR: Sync Separator
0
0
1
0
R/W
2
0
R/W
3
0
4
5
6
0
7
R
R/W
HCKSEL
R/W
AFCVIE
R/(W)*
AFCVIF
R/W
VCKSL
R/W
VCMPON
HHKON
—
FLD
0
0
0
HHK forcibly turned on
0
1
Field detection flag
0
1
Internal csync generator clock source select
0
1
V complement function control
0
1
V complement and mask counter clock source select
0
1
:
:
:
External Vsync interrupt flag
0
1
External Vsync interrupt enable
0
1
Bit
Initial value
R/W
Note: *Only 0 can be written to clear the flag
The external Vsync interrupt is disabled (Initial value)
The external Vsync interrupt is enabled
[Clearing condition]
1 is read, then 0 is written
(Initial value)
[Setting condition]
The V complement and mask counter detects the external Vsync signal (AFCV signal)
Double the frequency of the horizontal sync signal (AFCH signal) for the AFC (Initial value)
Double the frequency of the horizontal sync signal (OSCH signal) for the
H complement and mask counter
The V complement function is disabled (Initial value)
The V complement function is enabled
4/2 fsc clock (Initial value)
AFC reference clock
The HHK is not operated when complementary
pulses are interpolated three successive times
(Initial value)
The HHK is forcibly operated when complementary
pulses are interpolated three successive times
Even field (Initial value)
Odd field