Texas Instruments TMS320DM648 manual Video Capture Channel x Field 2 Stop Register VCxSTOP2

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Video Capture Registers

Table 3-18. Video Capture Channel x Field 2 Start Register (VCxSTRT2) 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
15-12	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	Starting pixel number. Must be	Not used.	Not used.
				an even number (LSB is
				treated as 0).
		DEFAULT	0

(1)For CSL implementation, use the notation VP_VCxSTRT2_field_symval

3.13.6 Video Capture Channel x Field 2 Stop Register (VCxSTOP2)

The video capture channel x field 2 stop register (VCxSTOP2) defines the end of the field 2-captured image.

These registers are not used in raw data mode or TCI mode because their capture sizes are completely defined by the field 1 start and stop registers.

The video capture channel x field 2 stop register (VCxSTOP2) is shown in Figure 3-26and described in Table 3-19.

Figure 3-26. Video Capture Channel x Field 2 Stop Register (VCxSTOP2)

31	28	27	16
	Reserved		VCYSTOP
	R-0		R/W-0
15	12	11	0
	Reserved		VCXSTOP
	R-0		R/W-0

LEGEND: R/W = Read/Write; R = Read only; -n= value after reset

Table 3-19. Video Capture Channel x Field 2 Stop Register (VCxSTOP2) 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	VCYSTOP	OF(value)	0-FFFh	Last captured line.	Not used.	Not used.
		DEFAULT	0
15-12	Reserved	-	0	Reserved. The reserved bit location is always read as 0. A value written to this
				field has no effect.
11-0	VCXSTOP	OF(value)	0-FFFh	Last captured pixel (VCXSTOP	Not used.	Not used.
				- 1). Must be an even value
				(the LSB is treated as 0).
		DEFAULT	0

(1)For CSL implementation, use the notation VP_VCxSTOP2_field_symval

78 Video Capture Port SPRUEM1 –May 2007

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