Video Port/VCXO Interpolated Control (VIC) Port User's Guide

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Video Capture Registers
Table 3-23. Video Capture Channel B Control Register (VCBCTL) Field Descriptions (continued)
Description
Bit field
(1)
symval
(1)
Value BT.656 or Y/C Mode Raw Data Mode TCI Mode
16 HRST OF( value) HCOUNT reset method bit.
DEFAULT 0 EAV or VCTL1 active edge. Not used. Not used.
EAV
SAV 1 SAV or VCTL1 inactive edge. Not used. Not used.
15 VCEN OF( value) Video capture enable bit. Other bits in VCBCTL (except RSTCH and BLKCAP bits)
may only be changed when VCEN = 0.
DEFAULT 0 Video capture is disabled.
DISABLE
ENABLE 1 Video capture is enabled.
14-13 Reserved - 0 Reserved. The reserved bit location is always read as 0. A value written to this field
has no effect..
12 LFDE OF( value) Long field detect enable bit.
DEFAULT 0 Long field detect is disabled. Not used. Not used.
DISABLE
ENABLE 1 Long field detect is enabled. Not used. Not used.
11 SFDE OF( value) Short field detect enable bit.
DEFAULT 0 Short field detect is disabled. Not used. Not used.
DISABLE
ENABLE 1 Short field detect is enabled. Not used. Not used.
10 RESMPL OF( value) Chroma re-sampling enable bit.
DEFAULT 0 Chroma re-sampling is disabled. Not used. Not used.
DISABLE
ENABLE 1 Chroma is horizontally Not used. Not used.
re-sampled from 4:2:2 co-sited to
4:2:0 interspersed before saving
to chroma buffers.
9 Reserved - 0 Reserved. The reserved bit location is always read as 0. A value written to this field
has no effect.
8 SCALE OF( value) Scaling select bit.
DEFAULT 0 No scaling Not used. Not used.
NONE
HALF 1 ½ scaling Not used. Not used.
7 CON
(2)
OF( value) Continuous capture enable bit.
DEFAULT 0 Continuous capture is disabled.
DISABLE
ENABLE 1 Continuous capture is enabled.
6 FRAME
(2)
OF( value) Capture frame (data) bit.
DEFAULT 0 Do not capture frame. Do not capture single Do not capture single
data block. packet.
NONE
FRMCAP 1 Capture frame. Capture single data Capture single packet.
block.
5 CF2
(2)
OF( value) Capture field 2 bit.
NONE 0 Do not capture field 2. Not used. Not used.
DEFAULT 1 Capture field 2. Not used. Not used.
FLDCAP
(2)
For complete encoding of these bits, see Table 3-6 , Table 3-11 , and Table 3-12 .
SPRUEM1 – May 2007 Video Capture Port 83
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