GS2970 Datasheet, PDF (127/145 Pages) Semtech Corporation – 3Gb/s, HD, SD SDI Receiver Complete with SMPTE Audio and Video Processing

Table 4-31: HD and 3G Audio Core Configuration and Status Registers (Continued)
Address
208h
Register Name Bit Name
CFG_AUD_2
RSVD
SEL_PHASE_SRC
LSB_FIRSTB
LSB_FIRSTA
FORCE_M
FORCE_MEQ1001
IGNORE_PHASE
FORCE_ACLK128
209h
EN_NOT_LOCKED
EN_NO_VIDEO
EN_NO_PHASEB
EN_NO_PHASEA
CFG_AUD_3
RSVD
MISSING_PHASE
NO_PHASEB_DATA
NO_PHASEA_DATA
Bit Description
15-11
10
9
8
7
6
5
4
3
2
1
0
15-3
2
1
0
Reserved.
Selects between the Primary and
Secondary embedded phase info.
Causes the Secondary group serial
output formats to use LSB first.
Causes the Primary group serial
output formats to use LSB first.
Disables M value detection and
forces M value to that specified by
FORCE_MEQ1001.
Specifies M value when FORCE_M is
set.
1: M= 1.001
0: M = 1.000
Causes the Demultiplexer to ignore
the embedded clock info in both
the Primary and Secondary group
audio data packets. Clock is
generated based on the video
format and M value.
Causes the core to ignore
embedded clock info and derive
phase information from ACLK128.
Asserts AUDIO_ERROR when locked
is not asserted.
Asserts AUDIO_ERROR when the
video format is unknown.
Asserts AUDIO_ERROR when
NO_PHASEB_DATA is set.
Asserts AUDIO_ERROR when
NO_PHASEA_DATA is set.
Reserved.
Embedded phase info for chosen
group missing or incorrect.
Secondary group has invalid
embedded clock information.
Primary group has invalid
embedded clock information.
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
R/W
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GS2970 3Gb/s, HD, SD SDI Receiver Complete with
SMPTE Audio and Video Processing
Data Sheet
47478 - 4
September 2012
127 of 145