GS1503 Gennum Corporation, GS1503 Datasheet - Page 61

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

Table 14: Demultiplex Mode Host Interface Registers (Continued)
CONTROL
Channel
Status
Audio
Audio
Block
ITEM
AUDIO_CS[7:0]
AUDIO_CS
DECMODE
MUXERRB
MUXERRA
[183:176]
TRS_INS
AM_SEL
AM[1:0]
LN_INS
NAME
RSV
RSV
RSV
:
Audio input format (external pin/register)
Ch5-8 audio sample clock error. When set HIGH,
Ch1-4 audio sample clock error. When set HIGH,
Line insertion enable. When set HIGH, the GS1503
will insert line numbers into the video data stream.
When set LOW, existing line numbers will remain in
the output video stream.
TRS insertion enable. When set HIGH, the GS1503
will insert TRS codes into the video data stream.
When set LOW, existing TRS codes will remain in
the output video stream.
configuration select. When set LOW, the audio input
format is configured via the AM[1:0] pins. When set
HIGH, the audio input format is configured via the
"AM[1:0]" bits.
Not used.
Audio input format select. See Table 11. Valid when
"AM_SEL" is HIGH.
Not used.
Demultiplex Mode select. When set HIGH, the
GS1503 requires a 48kHz word clock input at
WCINA and WCINB. This word clock must be
synchronous to the word clock used to embed the
audio data. The embedded clock information in the
audio data packet will be ignored.
See Section 2-12.
NOTE: The status of the DEC_MODE external pin is
not updated in this register. The value programmed
in this register is logical OR'd with the DEC_MODE
external pin setting.
the GS1503 is unable to recover the audio clock
phase data in the embedded audio data packet for
audio channels 5 to 8. See Section 2-12.
the GS1503 is unable to recover the audio clock
phase data in the embedded audio data packet for
audio channels 1 to 4. See Section 2-12.
Audio Channel Status. When "CS_MODE" is set
HIGH, the 22 8-bit bytes of the Audio Channel
Status Block, as defined in AES3-1992, are
available in these registers. Valid in both AES/EBU
and serial audio modes.
When "CS_MODE" is set LOW, the Audio Channel
Status information in the AES/EBU audio outputs will
be replaced with data programmed in these
registers. Valid only in AES/EBU audio mode.
Not used
DESCRIPTION
61
ADDRESS
010
01E
058
06E
06F
:
BIT
6-2
1-0
7-3
7-0
7-0
7-6
1
0
7
2
1
0
:
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
-
-
-
DEFAULT
15879 - 1
1
1
0
0
0
0
0
0
0
0
0