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3.13.4 Video Capture Channel x Field 1 Stop Register (VCxSTOP1)
Video Capture Registers
Figure 3-23. Video Capture Channel x Field 1 Start Register (VCxSTRT1)
31
28
27
16
Reserved
VCYSTART
R-0
R/W-0
15
14
12
11
0
SSE
Reserved
VCXSTART/VCVBLNKP
R/W-1
R-0
R/W-0
LEGEND: R/W = Read/Write; R = Read only; -n = value after reset
Table 3-16. Video Capture Channel x Field 1 Start Register (VCxSTRT1) Field Descriptions
Description
Bit
field
(1)
symval
(1)
Value
BT.656 or Y/C Mode
Raw Data Mode
TCI Mode
31-28
Reserved
-
0
Reserved. The reserved bit location is always read as 0. A value written to this
field has no effect.
27-16
VCYSTART
OF(value)
0-FFFh
Starting line number.
Not used.
Not used.
DEFAULT
0
15
SSE
OF(value)
Startup synchronization enable bit.
DISABLE
0
Not used.
Startup
Not used.
synchronization is
disabled.
DEFAULT
1
Not used.
Startup
Not used.
synchronization is
ENABLE
enabled.
14-12
Reserved
-
0
Reserved. The reserved bit location is always read as 0. A value written to this
field has no effect.
11-0
VCXSTART
OF(value)
0-FFFh
VCXSTART bits define the
VCVBLNKP bits define Not used.
starting pixel number. Must be
the minimum CAPEN
VCVBLNKP
an even number (LSB is
inactive time to be
treated as 0).
interpreted as a
vertical blanking
period.
DEFAULT
0
(1)
For CSL implementation, use the notation VP_VCxSTRT1_field_symval
The video capture channel x field 1 stop register (VCxSTOP1) defines the end of the field 1-captured
image or the end of the raw data or TCI packet.
In raw capture mode, the horizontal and vertical counters are combined into a single counter that keeps
track of the total number of samples received.
In TCI capture mode, the horizontal and vertical counters are combined into a single data counter that
keeps track of the total number of bytes received. The capture starts when a SYNC byte is detected. The
data counter counts bytes as they are received. The FRMC bit (in VCxSTAT) gets set each time a packet
has been received.
The video capture channel x field 1 stop register (VCxSTOP1) is shown in
and described in
.
Video Capture Port
76
SPRUEM1 – May 2007