GS1503BCVE2 GENNUM [Gennum Corporation], GS1503BCVE2 Datasheet - Page 44

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

Table 4-33: Multiplex Mode Host Interface Registers (Continued)
GS1503B HD Embedded Audio CODEC
Data Sheet
37953 - 1
Control
Item
CRC_CNT[11:0]
SW_LNB[12:0]
SW_LNA[12:0]
SCRBYPASS
DSCBYPASS
December 2009
LIMIT_ON
CRC_ERR
8BIT_SEL
CRC_INS
EXT_SEL
VM[3:0]
Name
RSV
Description
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
Valid 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.
Video Field 2 switching line setting. Designates
the video switching point for field 2. The
default line number is 569, as defined by
SMPTE 299M.
Video Field 1 switching line setting. Designates
the video switching point for field 1. The
default line number is 7, as defined by SMPTE
299M.
CRC error accumulation. Reports the
accumulated number of CRC errors in one
video frame.
Not used.
Illegal code re-mapping select. When set HIGH,
input video words between 000-003 are
re-mapped to 004, and values between 3FC-3FF
are re-mapped to 3FB. Valid only when
"EXT_SEL" is set HIGH.
Table
4-1.
Address
000
000
000
001
001
001
001
002
003
004
005
006
007
008
008
Bit
7-5
4
3-0
4-0
7-0
4-0
7-0
3-0
7-0
5
4
3
2
1
0
R/W
–
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R
R
Default
0
0
569d
7d
44 of 90
0
1
0
0
0
0
0
0