Table 8. register 07h: tv video output control, Table 9. register 08h: vcr video input control – Rainbow Electronics MAX9595 User Manual
Page 21
MAX9595
Audio/Video Switch for Dual SCART Connector
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21
BIT
DESCRIPTION
7
6
5
4
3
2
1
0
COMMENTS
0
0
Low (< 2V), internal source (power-on default)
0
1
Medium (4.5V to 7V), external SCART source
with 16:9 aspect ratio
1
0
High impedance
Set TV Function Switching
1
1
High (> 9.5V), external SCART source with 4:3
aspect ratio
0
Normal operation, pulldown on TV_R/C_OUT
is off (power-on default)
TV_R/C_OUT Ground
1
Ground, pulldown on TV_R/C_OUT is on, the
output amplifier driving TV_R/C_OUT is turned
off
0
0
0V (power-on default)
0
1
Same level as ENC_FB_IN
1
0
Same level as VCR_FB_IN
Fast Blank (Fast Switching)
1
1
V
VID
0
Composite video from the Y/C mixer is output
TV_Y/CVBS_OUT Switch
1
The TV_Y/CVBS_OUT signal selected in
register 06h is output (power-on default)
0
Composite video from the Y/C mixer is output
(power-on default)
RF_CVBS_OUT Switch
1
The TV_Y/CVBS_OUT signal selected in
register 06h is output
Table 8. Register 07h: TV Video Output Control
BIT
DESCRIPTION
7
6
5
4
3
2
1
0
COMMENTS
VCR_Y/CVBS_OUT
VCR_R/C_OUT
0
0
0
ENC_Y/CVBS_IN
ENC_R/C_IN
0
0
1
ENC_Y_IN
ENC_C_IN
0
1
0
VCR_Y/CVBS_IN
VCR_R/C_IN
0
1
1
TV_Y/CVBS_IN
TV_R/C_IN
1
0
0
Not used
Not used
1
0
1
Mute
Mute
1
1
0
Mute
Mute
Input Sources for VCR
Video
1
1
1
Mute (power-on default)
Mute (power-on default)
0
DC restore clamp active at input (power-on default)
VCR_R/C_IN Clamp/Bias
1
Chrominance bias applied at input
0
DC restore clamp active at input (power-on default)
ENC_R/C_IN Clamp/Bias
1
Chrominance bias applied at input
Table 9. Register 08h: VCR Video Input Control