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3.13.2 Video Capture Channel A Control Register (VCACTL)
Video Capture Registers
Table 3-14. Video Capture Channel x Status Register (VCxSTAT) Field Descriptions
Description
Bit
field
(1)
symval
(1)
Value
BT.656 or Y/C Mode
Raw Data Mode
TCI Mode
31
FSYNC
OF(value)
Current frame sync bit.
DEFAULT
0
VCOUNT = VINT1 or
Not used.
Not used.
VINT2, as selected by
CLEARED
the FSCL2 bit in
VCxVINT.
SET
1
VCOUNT = 1 in field
Not used.
Not used.
1.
30
FRMC
OF(value)
Frame (data) captured bit. Write 1 to clear the bit, a write of 0 has no effect.
DEFAULT
0
Complete frame has
Complete data block has
Entire data packet has not been
not been captured.
not been captured.
captured.
NONE
CAPTURED
1
Complete frame has
Complete data block has
Entire data packet has been
been captured.
been captured.
captured.
CLEAR
29
F2C
OF(value)
Field 2 captured bit. Write 1 to clear the bit, a write of 0 has no effect.
DEFAULT
0
Field 2 has not been
Not used.
Not used.
captured.
NONE
CAPTURED
1
Field 2 has been
Not used.
Not used.
captured.
CLEAR
28
F1C
OF(value)
Field 1 captured bit. Write 1 to clear the bit, a write of 0 has no effect.
DEFAULT
0
Field 1 has not been
Not used.
Not used.
captured.
NONE
CAPTURED
1
Field 1 has been
Not used.
Not used.
captured.
CLEAR
27-16
VCYPOS OF(value)
0-FFFh
Current VCOUNT
Upper 12 bits of the data
Upper 12 bits of the data
value and the line that counter.
counter.
is currently being
received (within the
current field).
DEFAULT
0
15-13
Reserved -
0
Reserved. The reserved bit location is always read as 0. A value written to this field
has no effect.
12
VCFLD
OF(value)
VCFLD bit indicates which field is currently being captured. The VCFLD bit is updated
based on the field detection logic selected by the FLDD bit in VCACTL.
DEFAULT
0
Field 1 is active.
Not used.
Not used.
NONE
DETECTED
1
Field 2 is active.
Not used.
Not used.
11-0
VCXPOS OF(value)
0-FFFh
Current HCOUNT
Lower 12 bits of the data
Lower 12 bits of the data
value. The pixel index
counter.
counter.
of the last received
pixel.
DEFAULT
0
(1)
For CSL implementation, use the notation VP_VCxSTAT_field_symval
Video capture is controlled by the video capture channel A control register (VCACTL) shown in
and described in
Video Capture Port
72
SPRUEM1 – May 2007