GS1503 Gennum Corporation, GS1503 Datasheet - Page 26

• Manufacturer Part Number: GS1503
• Description: HD Embedded Audio Codec
• Manufacturer: Gennum Corporation

Table 5: Audio Data Packet Group DID Host
Interface Setting
Register Settings (CASCADE set LOW)
When CASCADE is set HIGH (external pin or register), the
GS1503 will default to audio groups 3 and 4, where AIN1/2
and AIN3/4 will be multiplexed with audio group 3 DID, and
AIN5/6 and AIN7/8 with audio group 4 DID.
Register Settings (CASCADE set HIGH)
1.7.3
Multiplexing of individual audio channels is enabled using
the CHACT[7:0] bits 7-0 of Host Interface register 013h.
When set HIGH, the corresponding audio channel is
multiplexed into the audio data packet in the Chroma video
Register Settings
GROUP
DATAIDA [1-0]
DATAIDB [1-0]
DATAIDA [1-0]
DATAIDB [1-0]
AUDIO
Audio Channel Multiplex Enable
CHACT7
CHACT6
CHACT5
CHACT4
CHACT3
CHACT2
CHACT1
CHACT0
1
2
3
4
NAME
NAME
NAME
10-BIT DATA
2E7h
1E6h
1E5h
2E4h
Ch1-4 Audio data packet DID setting
Ch5-8 Audio data packet DID setting
Ch1-4 Audio data packet DID setting
Ch5-8 Audio data packet DID setting
Ch8 multiplex enable (1: Enabled)
Ch7 multiplex enable (1: Enabled)
Ch6 multiplex enable (1: Enabled)
Ch5 multiplex enable (1: Enabled)
Ch4 multiplex enable (1: Enabled)
Ch3 multiplex enable (1: Enabled)
Ch2 multiplex enable (1: Enabled)
Ch1 multiplex enable (1: Enabled)
REGISTER SETTING (2-BIT)
HOST INTERFACE
DESCRIPTION
DESCRIPTION
DESCRIPTION
11b
10b
01b
00b
26
data stream. CHACT7 corresponds to audio input channel 8
and CHACT0 corresponds to audio input channel 1. When
all bits are set LOW, no audio data packets will be
multiplexed and the GS1503 will be in bypass mode.
ADDRESS
ADDRESS
ADDRESS
014
014
013
BIT
BIT
1-0
3-2
1-0
3-2
BIT
7
6
5
4
3
2
1
0
SETTING
SETTING
SETTING
Table 5
Table 5
See
See
-
DEFAULT
DEFAULT
DEFAULT
11b
10b
01b
00b
15879 - 1
1
1
1
1
1
1
1
1