GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 75

• Manufacturer Part Number: GS1503BCVE2
• Description: HD Embedded Audio CODEC Data Sheet
• Manufacturer: GENNUM [Gennum Corporation]

Table 5-29: Demultiplex Mode Host Interface Registers
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
Control
Item
Video
Name
VM_SEL
VIDEO_DET
CRC_ERR
CRC_INS
VM[3:0]
EXT_SEL
SCRBYPASS
8BIT_SEL
DSCBYPASS
CRC_CNT[11:0]
RSV
VBLK_INS
December 2009
Description
Video input format (external pin/internal
register) configuration select. When set LOW, the
video input format is configured via the VM[3:0]
pins.
format is configured via the "VM[3:0]" bits.
Video signal detection flag. Set HIGH when 3
consecutive TRS are detected in the input video
signal.
Video input signal CRC error detection. Set HIGH
when a CRC error is detected in the input video
signal. This register is refreshed on every video
frame.
Video CRC insertion. When set HIGH, the Luma
and Chroma line CRC words are re-calculated and
inserted into the output video signal.
Video input format selection. See
when "VM_SEL" is HIGH.
External EXTH/EXTF input select. When set LOW,
the EXTH and EXTF pins are configured as
outputs. When set HIGH, the GS1503B will insert
TRS and Line Numbers based on signals input at
the EXTH and EXTF pins.
Scramble processing bypass select.
When set HIGH, the internal scrambler and NRZ(I)
encoder is bypassed.
NOTE: The status of the SCRBYPASS external pin
is not updated in this register. The value
programmed in this register is logical OR'd with
the SCRBYPASS external pin setting.
8-bit input selection. When set HIGH, the
GS1503B will accept an 8-bit input video signal.
Descramble process bypass select.
When set HIGH, the internal SMPTE 292M
descrambler is bypassed.
NOTE: The status of the DSCBYPASS external pin
is not updated in this register. The value
programmed in this register is logical OR'd with
the DSCBYPASS external pin setting.
CRC error accumulation. Reports the
accumulated number of CRC errors in one video
frame.
Not used.
Vertical blanking enable. When set HIGH, the
output video vertical blanking will be set to 040h
for the Luma channel and 200h for the Chroma
channel.
When set HIGH, the video input
Table
5-1. Valid
Address
000
000
000
000
000
001
001
001
001
006
007
008
008
Bit
3-0
3-0
7-0
7-4
7
6
5
4
3
2
1
0
3
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
R
0
Default
75 of 90
0
0
0
1
0
0
0
0
0
0
0