GV7704 Datasheet, PDF (38/52 Pages) Semtech Corporation – Quad HD-VLC Receiver

Table 5-1: GV7704 Register Descriptions — Channel Controls (Continued)
Address
Register Name
Parameter Name
Bit
Slice
4469_h (Ch 0)
DATALANE_FIFO_WR_
FLUSH
0:0
5069_h (Ch 1) _{DATALANE_FIFO_CTRL_}
5C69_h (Ch 2)
6869_h (Ch 3)
REG
DATALANE_FIFO_RD_
START_THRESH
5:1
4823_h (Ch 0)
5423_h (Ch 1)
6023_h (Ch 2)
VIDEO_CTRL_OVERRIDE_
REG
DISABLE_VIDEO_LANE
5:4
6C23_h (Ch 3)
4824_h (Ch 0)
5424_h (Ch 1) _{AUDIO_CTRL_OVERRIDE_}
6024_h (Ch 2)
REG
DISABLE_AUDIO
1:0
6C24_h (Ch 3)
AUDIO_SAMP_FREQ 2:1
4825_h (Ch 0)
5425_h (Ch 1)
6025_h (Ch 2)
6C25_h (Ch 3)
AUDIO_SAMP_FREQ_
OVERRIDE_REG
AUDIO_SAMP_FREQ_
MANUAL_MODE
0:0
482C_h (Ch 0)
542C_h (Ch 1)
602C_h (Ch 2)
GEN_VIDEO_CFG_0_
REG
SD_HDB
1:1
6C2C_h (Ch 3)
R/W
Reset
Value
Description
RW
0_b
Initiates a flush from the writer side
on the FIFO. Active HIGH.
Number or items that need to be
RW
4_h written to FIFO before the read
process starts.
X0_b = Lane n is enabled
RW
0_h
11_b = Lane n is enabled
01_b = Lane n is disabled regardless
of the presence of a valid signal
X0_b = Channel n Audio is enabled
RW
0_h 11_b = Channel n Audio is enabled
01_b = Channel n Audio is disabled
Manually specifies the audio
sampling rate when
AUDIO_SAMP_FREQ_MANUAL_
MODE = 1
RW
0_h
00_b = 48kHz
01_b = 44.1kHz
10_b = 32kHz
11_b = Reserved
This mode only needs to be
enabled if the audio sampling
information is not present in the
Stream ID packets. If the incoming
signal is transmitted by a GV7700,
the information will be present
and this mode does not need to be
enabled.
RW
0_b
1_b = The audio sampling
frequency will be manually
specified according to
AUDIO_SAMP_FREQ.
0_b = The device will automatically
detect the audio sampling
frequency present within the
Stream ID of the video signal.
When HIGH, indicates that the
incoming signal is 270Mb/s.
RO
0_b
When LOW, indicates that the
incoming signal is 1.485Gb/s.
GV7704
Preliminary Data Sheet Rev.3
PDS-060376
September 2015
www.semtech.com
38 of 52
Semtech