AK4707 Datasheet, PDF (29/42 Pages) Asahi Kasei Microsystems – AV SCART Switch

ASAHI KASEI
[AK4707]
„ Register Map
Addr
00H
01H
02H
03H
04H
05H
06H
07H
08H
09H
Register Name
Control
Switch
Main Volume
Zerocross
Video switch
Video output enable
Video clamp
S/F Blanking control
S/F Blanking monitor
Monitor mask
D7
0
MUTE
0
0
0
0
0
SBIO1
0
MCOMN
D6
0
0
0
VMONO
0
TVFB
VCLP1
SBIO0
0
0
D5
0
VCR1
L2
0
VVCR2
0
VCLP0
SBV1
0
0
D4
0
VCR0
L1
0
VVCR1
VCRV
0
SBV0
TVMON
MTV
D3
AUTO
MONO
L0
0
VVCR0
TVB
CLAMP1
SBT1
VCMON
MVC
D2
0
0
1
ZERO
VTV2
TVG
CLAMP0
SBT0
FVCR
MFVCR
D1
BIAS
TV1
1
ZTM1
VTV1
TVR
0
FB1
SVCR1
MSVCR
D0
STBY
TV0
1
ZTM0
VTV0
TVV
0
FB0
SVCR0
0
When the PDN pin goes “L”, the registers are initialized to their default values.
While the PDN pin = “H”, all registers can be accessed.
Do not write any data to the register over 09H.
„ Register Definitions
Addr Register Name D7
D6
D5
D4
D3
D2
D1
D0
00H Control
0
0
0
0
AUTO
0
BIAS STBY
R/W
R/W
Default
0
0
0
0
1
0
1
1
STBY: Standby control
0: Normal Operation
1: Standby Mode (default). All registers are not initialized.
Source of TVOUT
: fixed to VCRIN,
Source of VCROUT : fixed to TVIN
Source of TVVOUT : fixed to VCRVIN (or Hi-Z),
Source of TVRC
: fixed to VCRRC (or Hi-Z),
Source of TVG
: fixed to VCRG (or Hi-Z),
Source of TVB
: fixed to VCRB (or Hi-Z),
Source of VCRVOUT : fixed to TVVIN (or Hi-Z),
Source of TVFB
: fixed to VCRFB (or Hi-Z),
Source of TVSB
: fixed to VCRSB.
BIAS: Audio output control
0: Normal operation
1: ALL Audio outputs to GND (default)
AUTO: Auto startup bit
0: Auto startup disable (Manual startup).
1: Auto startup enable (default).
Note 23. When the SBIO1 bit = “1”(default = “0”), the change of AUTO bit may cause a “L” pulse on INT pin.
MS0551-E-00
- 29 -
2006/10