Rev. 1.0, 02/00, page 1085 of 1141
H'D242: Sync Separation AFC Control Register SEPACR: Sync Separator
0
0
1
0
—
2
0
R/W
3
0
4
5
6
0
7
—
—
—
R/W
NDETIE
R/(W)*
NDETIF
R/W
HSEL
—
—
ARST
—
—
0
1
0
AFC reset control
0
1
Reference Hsync signal select
0
1
:
:
:
Noise detection interrupt flag
0
1
Noise detection interrupt enable
0
1
Bit
Initial value
R/W
Note: *Only 0 can be written to clear the flag
The noise detection interrupt is disabled (Initial value)
The noise detection interrupt is enabled
[Clearing condition]
1 is read, then 0 is written (Initial value)
[Setting condition]
The noise detection counter value matches the noise detection level register value
The external Hsync signal is selected (Initial value)
The internally generated Hsync signal is selected
The reset function is disabled (Initial value)
The reset function is enabled
H'D243: Horizontal Sync Signal Threshold Register HVTHR: Sync Separator
0
1
2
HVTH2
3
HVTH3
0
4
HVTH4
W
W
W
W
5
—
—
6
—
—
7
—
—
HVTH1
0
W
HVTH0
1
1
1
0
0
0
Horizontal sync signal threshold
:
:
:
Bit
Initial value
R/W
Note: Refer to section 27.2.4, Horizontal Sync Signal Threshold Register (HVTHR)