GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 39

• Manufacturer Part Number: GS1503BCVE2
• Description: HD Embedded Audio CODEC Data Sheet
• Manufacturer: GENNUM [Gennum Corporation]

Table 4-29: Audio Control Packet Word Descriptions
4.10.2 Audio Control Packet DID Setting
To multiplex audio control packets for audio channels 1 to 4 (inputs AIN1/2 and AIN3/4),
the CTRONA bit 2 of Host Interface register 02Fh must be set HIGH. To multiplex audio
control packets for audio channels 5 to 8 (inputs AIN5/6 and AIN7/8), the CTRONB bit 2
of Host Interface register 020h must be set HIGH.
The audio control packet group DID for audio input 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
input channels 5 to 8 is set in CTRIDB[1:0] bits 3-2 of Host Interface register 020h.
Table 4-30
packet group DID.
When CASCADE is set LOW (external pin or register), the GS1503B will default to audio
groups 1 and 2, where the audio control packet for AIN1/2 and AIN3/4 will be
multiplexed with group 1 DID, and AIN5/6 and AIN7/8 with group 2 DID.
Control packet data can be programmed via the corresponding registers in the Host
Interface.
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
Name
ADF
DID
DBN
DC
AF
RATE
ACT
DEL1-2
DEL3-4
RSRV
CS
shows the 2-bit Host Interface setting for the corresponding audio control
December 2009
3
1
No of Words
1
1
1
1
1
3
3
2
1
Description
Ancillary Data Flag
Audio Group Data ID
Data Block Number
Audio Frame Number
Sampling Frequency
Reserved Words
Checksum. Calculates
the sum of lower 9 bits
of 15 words from DID
Data Count
Active Channel
Ch1/2 Delay Data
Ch3/4 Delay Data
Data
3FFh
3FFh
1E3h
2E2h
2E1h
1E0h
200h
10Bh
–
–
200h
–
000h
–
–
–
Auto-Generation
Yes
See
Section 5.8.2
Yes
Yes
9-bit Host Interface
Setting
4-bit Host Interface
Setting
CHACT[7:0] setting
setting
setting
18-bit Host Interface
setting
Yes
26-bit Host Interface
26-bit Host Interface
Table 4-30
in
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