TABLE 15 DEMULTIPLEX MODE HOST INTERFACE REGISTERS (CONTINUED)
ADDRESS BIT
NAME
FUNCTION
R/W
3h
3-0
AD20ID[3:0] Designates the 4 LSBs of the audio data packet DID word. The 6
R/W
MSBs are internally generated. “AD20ID[3]” is the MSB and
“AD20ID[0]” is the LSB.
7-4
AD4ID[3:0] Designates the 4 LSBs of the extended audio data packet DID word. R/W
The 6 MSBs are internally generated. “AD4ID[3]” is the MSB and
“AD4ID[0]” is the LSB.
4h
3-0
ACID[3:0]
Designates the 4 LSBs of the audio control packet DID word. The 6
R/W
MSBs are internally generated. “ACID[3]” is the MSB and “ACID[0]” is
the LSB.
4
RSV
Not used.
-
5
MUTE
Audio mute enable. Same functionality as the MUTE pin. When set
R/W
HIGH, the demultiplexed audio and extended packet data are forced
to zero.
6
ACTSEL
Audio lock process select. When set HIGH, the GS9023A ‘locks’ by
R/W
detecting the presence of an audio control packet corresponding to
the DID configured in “ACID[3:0]” and occurring at the expected line
and position as listed in Table 6. When set LOW, the GS9023A ‘locks’
by counting the number of audio samples in a frame or multiple frames
and validating the number of samples detected based on the video
standard.
7
RSV
Not used.
-
5h
7-0
PKTID[7:0] Designates the 8 LSBs of the arbitrary data packet DID word. The 2
R/W
MSBs are internally generated. “PKTID[7]” is the MSB and “PKTID[0]”
is the LSB.
6h
1-0
BUFSEL[1:0] Video/audio delay mode. “BUFSEL[1]” is the MSB and “BUFSEL[0]” is R/W
the LSB. See Table 13.
2
CRCADD
AES/EBU CRC select. When set HIGH, the C bit (channel status
R/W
information) of each audio sample contains CRC information as
defined in the AES3-1992 standard.
7-3
RSV
Not used.
-
7h
4-0
RSV
Not used.
-
5
SAMPERR
Sample error. Incorrect number of audio samples detected. 8008
R
audio samples (48kHz) in 5 video frames for a 525 line video format.
1920 audio samples (48kHz) in 1 video frame for a 625 line video
format.
6
ACRCERR1/2 Audio channel 1/2 CRC error.
R
7
ACRCERR3/4 Audio channel 3/4 CRC error.
R
8h
0
A20DBNERR Audio packet DBN error. A DBN discontinuity was detected.
R
1
A20DCERR Audio packet DC error. The number of UDW indicated does not match R
the number of words found in the data packet.
2
RSV
Not used.
-
3
A20B9ERR Audio packet inversion bit error. An incorrect bit 9 inversion of bit 8
R
was detected in the audio packet.
7-4
RSV
Not used.
-
DEFAULT
Fh
Eh
Fh
0
0
0
1h
0
0
0
0
0
0
0
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