GS2972 Datasheet, PDF (106/125 Pages) Semtech Corporation – 3G/HD/SD-SDI Serializer with Complete SMPTE Audio & Video Support

Table 4-35: SD Audio Core Configuration and Status Registers (Continued)
Address Register Name Bit Name
RSVD
MUTE_ALL
LSB_FIRSTD
LSB_FIRSTC
LSB_FIRSTB
LSB_FIRSTA
40Fh
ACTIVE_CHANNEL _ACT8
ACT7
ACT6
ACT5
ACT4
ACT3
ACT2
ACT1
Bit Description
15-13
12
11
10
9
8
7
6
5
4
3
2
1
0
Reserved.
Mutes all input audio channels.
Causes the fourth stereo pair serial
input formats to use LSB first.
Used in conjunction with AMD,
and only relevant when AMD is 01
or 10 Figure 4-16 to 4-19.
Causes the third stereo pair serial
input formats to use LSB first.
Used in conjunction with AMCand
only relevant when AMC is 01 or
10 Figure 4-16 to 4-19.
Causes the second stereo pair
serial input formats to use LSB
first. Used in conjunction with
AMB and only relevant when AMD
is 01 or 10 Figure 4-16 to 4-19.
Causes the first stereo pair serial
input formats to use LSB first.
Used in conjunction with AMA
and only relevant when AMA is 01
or 10 Figure 4-16 to 4-19.
Specifies embedding of secondary
audio group channel 8. Active
HIGH.
Specifies embedding of secondary
audio group channel 7. Active
HIGH.
Specifies embedding of secondary
audio group channel 6. Active
HIGH.
Specifies embedding of secondary
audio group channel 5. Active
HIGH.
Specifies embedding of primary
audio group channel 4. Active
HIGH.
Specifies embedding of primary
audio group channel 3. Active
HIGH.
Specifies embedding of primary
audio group channel 2. Active
HIGH.
Specifies embedding of primary
audio group channel 1. Active
HIGH.
R/W
R
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Default
0
0
0
0
0
0
1
1
1
1
1
1
1
1
GS2972 3G/HD/SD-SDI Serializer with Complete
SMPTE Audio & Video Support
Final Data Sheet Rev. 9
GENDOC-047479 September 2013
www.semtech.com
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