gs9023-cfy ETC-unknow, gs9023-cfy Datasheet - Page 26

• Manufacturer Part Number: gs9023-cfy
• Description: Embedded Audio Codec
• Manufacturer: ETC-unknow

TABLE 15: Demultiplex Mode Host Interface Registers
GENNUM CORPORATION
ADDRESS
0h
1h
2h
3h
BIT
2-0
3-0
7-0
3-0
7-4
3
4
5
6
7
4
5
6
7
AD20ID[3:0]
CHACT(4-1)
VMOD[2:0]
AD4ID[3:0]
D2_TRS
EDHON
NAME
ACON
LOCK
A4ON
ADEL
VXST
VSEL
RSV
RSV
Video standard selection. See Table 1 . Valid when “VSEL” is HIGH.
Used in conjunction with “D2_TRS”. “VMOD[2]” is the MSB and
“VMOD[0]” is the LSB.
Lock indicator. Same functionality as the LOCK pin. When set HIGH,
the video standard has been identified, the ‘lock’ process selected by
“ACTSEL” has been validated and the device is ready to demultiplex
audio. See “ACTSEL” description .
Ancillary data delete. Same functionality as the ANCI pin. When set
HIGH, each ancillary data packet with a DID corresponding to either
the audio packet DID, the extended audio packet DID or the arbitrary
packet DID is removed from the video signal. When the “ADEL” bit is
LOW, all ancillary data packets remain in the video signal. Valid only
when “VSEL” is HIGH.
Video signal detection flag. Set HIGH when the video signal
corresponds to standard selected on the VM[2:0] and TRS pins or with
the “VMOD[2:0]” and “D2_TRS” bits.
TRS select. Same functionality as the TRS pin. Used to select video
standard format. When set HIGH, TRS is removed from a composite
video signal. Valid only when “VSEL” is HIGH. Used in conjunction with
“VMOD[2:0]”.
Video input format (external pin/internal register) configuration select.
When set LOW, the video input format is configured via the VM[2:0]
and TRS pins. When set HIGH, the video input format is configured via
the “VMOD[2:0]” and “D2_TRS” bits.
Active audio channel flags. When set HIGH, the corresponding audio
packets have been detected on the active video line. When set LOW,
no corresponding audio packets have been detected on the active
video line. The flags are updated on every video line.
Audio Control packet flag. When set HIGH, the audio control packet
has been detected in the video signal.
EDH flag. When set HIGH, EDH data has been detected in the video
signal.
Extended audio packet flag. When set HIGH, the extended audio
packet has been detected on the active video line (24 bit audio).
When set LOW, no extended audio packet has been detected on the
active video line (24 bit audio).
Not used.
Not used.
Designates the 4 LSBs of the audio data packet DID word. The 6
MSBs are internally generated. “AD20ID[3]” is the MSB and
“AD20ID[0]” is the LSB.
Designates the 4 LSBs of the extended audio data packet DID word.
The 6 MSBs are internally generated. “AD4ID[3]” is the MSB and
“AD4ID[0]” is the LSB.
26
FUNCTION
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
R
R
R
-
-
DEFAULT
522 - 45 - 05
Eh
Fh
0
0
0
0
0
0
0
0
0
0