ch7012a Chrontel, ch7012a Datasheet - Page 37

• Manufacturer Part Number: ch7012a
• Description: Ch7012 Tv Output Device
• Manufacturer: Chrontel

CHRONTEL
Version ID Register
Register VID is a read only register containing the version ID number of the CH7012.
Device ID Register
Register DID is a read only register containing the device ID number of the CH7012.
201-0000-042 Rev 2.1, 10/20/2004
Table 22. Power Management
TV
1
1
1
0
X
DEFAULT:
DEFAULT:
SYMBOL:
SYMBOL:
TYPE:
TYPE:
BIT:
BIT:
DACPD[3:0]
1001
0111or
1110
0000
XXXX
XXXX
VID7
DID7
R
R
7
0
7
0
FPD
0
0
0
0
1
VID6
DID6
R
R
6
0
6
0
Operating State
Composite Off, S-video on
Composite On/S-video off
Normal (On)
VGA to TV Encoder Off
Full Power Down
VID5
DID5
R
R
5
0
5
0
VID4
DID4
R
R
4
0
4
1
Functional Description
Composite DACs are off
S-Video DACs are off
Either pin 39 CVBS/B or pin 36
CVBS can be used for composite out
Both composite and s-video are on
TV off
All circuitry is powered down except serial port
VID3
DID3
R
R
3
0
3
0
VID2
DID2
Symbol:
Address:
Bits:
Symbol:
Address:
Bits:
R
R
2
0
2
1
VID1
DID1
CH7012A
R
R
1
1
1
1
VID
4Ah
8
DID
4Bh
8
VID0
DID0
37
R
R
0
1
0
0