AK4707 Datasheet, PDF (34/42 Pages) Asahi Kasei Microsystems – AV SCART Switch

ASAHI KASEI
[AK4707]
Addr Register Name
D7
08H SB/FB monitor
0
R/W
Default
0
D6
D5
D4
D3
D2
D1
D0
0
0 TVMON VCMON FVCR SVCR1 SVCR0
READ
0
0
0
0
0
0
0
SVCR1-0: VCR Slow blanking status monitor
SVCR1-0 bits reflect the voltage at VCRSB pin only when the VCRSB is in the input mode.
When the VCRSB is in the output mode, SVCR1-0 bits hold previous value.
VCRSB pin input level SVCR1 bit SVCR0 bit
< 2V
0
0
4.5V to 7V
0
1
(Reserved)
1
0
9.5V <
1
1
Table 19. VCR Slow Blanking monitor
FVCR: VCR Fast blanking input level monitor
This bit is enabled when TVFB bit = “1”.
VCRFB pin input level FVCR bit
< 0.4V
0
1V <
1
Table 20. VCR Fast Blanking monitor (Typical threshold is 0.7V)
VCMON:
TVMON:
Refer the Table 16.
Addr Register Name
D7
D6 D5 D4
D3
D2
D1
D0
09H Monitor mask
MCOMN 0
0 MTV MVC MFVCR MSVCR
0
R/W
R/W
Default
0
0
0
0
1
0
0
0
MSVCR: SVCR1-0 bits Monitor mask
0: The INT pin reflects the change of SVCR1-0 bit. (default)
1: The INT pin does not reflect the change of SVCR1-0 bits.
MFVCR: FVCR Monitor mask
0: The INT pin reflects the change of FVCR bit. (default)
1: The INT pin does not reflect the change of FVCR bit.
MVC: VCR input monitor mask
Refer the Table 18.
MTV: TV input monitor mask
Refer the Table 17.
MCOMN: Monitor mask option
Refer the Table 16.
MS0551-E-00
- 34 -
2006/10