Video Capture Channel X Status Register (Vcastat, Vcbstat); Video Capture Channel X Status Register (Vcxstat) - Texas Instruments TMS320DM648 User Manual

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Offset
(1)
Address Acronym
154h VCBSTOP2
158h VCBVINT
15Ch VCBTHRLD
160h VCBEVTCT
180h TCICTL
184h TCICLKINITL
188h TCICLKINITM
18Ch TCISTCLKL
190h TCISTCLKM
194h TCISTCMPL
198h TCISTCMPM
19Ch TCISTMSKL
1A0h TCISTMSKM
1A4h TCITICKS

3.13.1 Video Capture Channel x Status Register (VCASTAT, VCBSTAT)

The video capture channel x status register (VCASTAT, VCBSTAT) indicates the current status of the
video capture channel.
In BT.656 capture mode, the VCXPOS and VCYPOS bits indicate the HCOUNT and VCOUNT values,
respectively, to track the coordinates of the most recently received pixel. The F1C, F2C, and FRMC bits
indicate completion of fields or frames and may need to be cleared by the DSP for capture to continue,
depending on the selected frame capture operation (see
In raw data and TCI modes, the VCXPOS and VCYPOS bits reflect the lower and upper 12 bits,
respectively, of the 24-bit data counter that tracks the number of received data samples. The FRMC bit
indicates when an entire data packet has been received and may need to be cleared by the DSP for
capture to continue, depending on the selected frame operation (see
The video capture channel x status register (VCxSTAT) is shown in
Table 3-14.
31 30 29
FSYNC FRMC F2C
R-0 R/WC-0 R/WC-0 R/WC-0
15 13 12
Reserved VCFLD
R-0 R-0
LEGEND: R = Read only; WC = Write 1 to clear, a write of 0 has no effect; -n = value after reset
SPRUEM1 – May 2007
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Table 3-13. Video Capture Control Registers (continued)
Register Name
Video Capture Channel B Field 2 Stop Register
Video Capture Channel B Vertical Interrupt Register
Video Capture Channel B Threshold Register
Video Capture Channel B Event Count Register
TCI Capture Control Register
TCI Clock Initialization LSB Register
TCI Clock Initialization MSB Register
TCI System Time Clock LSB Register
TCI System Time Clock MSB Register
TCI System Time Clock Compare LSB Register
TCI System Time Clock Compare MSB Register
TCI System Time Clock Compare Mask LSB Register
TCI System Time Clock Compare Mask MSB Register
TCI System Time Clock Ticks Interrupt Register
Figure 3-21. Video Capture Channel x Status Register (VCxSTAT)
28 27
F1C
11
Section 3.4.1).
Section 3.7.1
Figure 3-21 and described in
VCYPOS
R-0
VCXPOS
R-0
Video Capture Registers
Section
Section 3.13.6
Section 3.13.7
Section 3.13.8
Section 3.13.9
Section 3.13.11
Section 3.13.12
Section 3.13.13
Section 3.13.14
Section 3.13.15
Section 3.13.16
Section 3.13.17
Section 3.13.18
Section 3.13.19
Section 3.13.20
and Section 3.8.5).
16
0
Video Capture Port 71