GS1503-CFZ Gennum Corp., GS1503-CFZ Datasheet - Page 54

• Manufacturer Part Number: GS1503-CFZ
• Description: HD EMBEDDED AUDIO CODEC
• Manufacturer: Gennum Corp.

Register Settings
The audio control packet group DID for audio output
channels 1 to 4 is set in CTRIDA[1:0] bits 1-0 of Host
Interface register 02Fh. The audio control packet group DID
for audio output channels 5 to 8 is set in CTRIDB[1:0] bits
3-2 of Host Interface register 020h. Table 13 shows the 2-bit
Host Interface setting for the corresponding audio control
packet group DID.
When CASCADE is set LOW (external pin or register), the
GS1503 will default to audio groups 1 and 2, where audio
control packet data for channels 1 to 4 will be
demultiplexed from packets with group 1 DID, and audio
control packet data for channels 5 to 8 will be
demultiplexed from packets with group 2 DID.
Control packet data is accessible via the corresponding
registers in the Host Interface.
Register Settings
DEL1-2A[25:0]
DEL3-4A[25:0]
AF_NOA[8:0]
ACPG4_DET
ACPG3_DET
ACPG2_DET
ACPG1_DET
RSRVA[17:0]
CTRIDA[1:0]
RATEA[2:0]
CTRONA
NAME
NAME
ASXA
Audio group 4 control packet detection (1: Detection)
Audio group 3 control packet detection (1: Detection)
Audio group 2 control packet detection (1: Detection)
Audio group 1 control packet detection (1: Detection)
Ch1-4 Audio control packet demultiplex enable
(1: Enabled)
Ch1-4 Audio control packet DID set
Ch1-4 Audio frame number
Ch1-4 Sampling frequency data
Ch1-4 Synchronization
(0: Synchronous; 1: Non-synchronous)
Ch1/2 Delay data
Ch3/4 Delay data
Ch1-4 Reserved words
DESCRIPTION
DESCRIPTION
54 of 83
Table 13: Audio Control Packet Group DID Host
Interface Settings
GROUP
AUDIO
1
2
3
4
ADDRESS
ADDRESS
03C
03D
020
02F
030
031
032
033
034
035
036
037
038
039
03A
03B
10-BIT DATA
1E3h
2E2h
2E1h
1E0h
BIT
BIT
1-0
7-0
3-1
1-0
7-0
7-0
7-0
1-0
7-0
7-0
7-0
1-0
7-0
7-0
7
6
5
4
2
0
0
REGISTER SETTING (2-BIT)
SETTING
SETTING
Table 13
HOST INTERFACE
See
1
-
-
-
-
-
-
-
-
-
11b
10b
01b
00b
DEFAULT
DEFAULT
11b
15879 - 4
0
0
0
0
1
0
0
0
0
0
0