GS1582-IBE3 View Datasheet(PDF) - Semtech Corporation
Part Name
Description
Manufacturer
GS1582-IBE3
Semtech Corporation
GS1582-IBE3 Datasheet PDF : 115 Pages
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NOTE: Disabling a single group does not reduce the power consumption of the GS1582,
however disabling both groups results in a power reduction.
PCLK
10
LOCKED
_
GRP1_EN/DIS
ACLK1
WCLK1
Ain_1/2
Ain_3/4
_
GRP2_EN/DIS
ACLK2
WCLK2
Ain_5/6
Ain_7/8
_
SD/HD
_
IOPROC_EN/DIS
AUDIO_INS
(From IOPROC_DIS register)
SD and HD
Audio Embedding Block
10
AUDIO_INT
_
RESET
Configuration & status register read/write access
Figure 4-10: Audio Multiplexer Top Level
4.7.2 Audio Detection
The audio multiplexer detects the presence of audio data and control packets in any of
four embedded audio groups. The presence of audio data is indicated by the
ADPGx_DET bits in the host interface, while the presence of control packets is indicated
by the ACPGx_DET bits in the host interface. In SD mode, the presence of extended
audio data packets is indicated by the AXPGx_DET bits in the host interface.
These detection flags are asserted for the duration that audio data packets are detected.
For SD formats, the first Ancillary Data Flag (ADF) must always be contiguous after the
EAV words. For HD formats, the first Ancillary Data Flag must always be contiguous
after the two EAV CRC words. By default, the device will delete all incoming ancillary
data with audio data or control packet DID's.
Refer to Section 4.13.3 for HD and SD audio multiplexer status and configuration
registers.
4.7.3 Audio Modes of Operation
The audio multiplexer operates in three distinct modes: normal mode, cascade mode,
and audio group replacement mode.
In normal operating mode, up to two audio groups can be added to the output video. (See
Table 4-3: Audio Multiplexer Modes of Operation). All existing audio packets are
GS1582 Multi-Rate Serializer with Cable Driver, Audio
Multiplexer and ClockCleanerTM
Data Sheet
40117 - 4
December 2011
38 of 115
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