Texas Instruments TMS320DM648 manual TCI Capture Control Register Tcictl

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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
4	CF1(2)	OF(value)		Capture field 1 bit.
		NONE	0	Do not capture field 1.	Not used.	Not used.
		DEFAULT	1	Capture field 1.	Not used.	Not used.
		FLDCAP
3-2	Reserved	-	0	Reserved. The reserved bit location is always read as 0. A value written to this field
				has no effect.
1-0	CMODE	OF(value)	0-3h	Capture mode select bit.
		DEFAULT	0	Enables 8-bit BT.656 mode.		Not used.
		BT656B
		RAWB	2h	Enables 8-bit raw data mode.		Not used.

3.13.11 TCI Capture Control Register (TCICTL)

The ERRFILT, STEN, and TCKEN bits may be written at any time. To ensure stable counter operation, writes to the CTMODE bit are disabled unless the system time counter is halted (ENSTC = 0).

The transport stream interface capture control register (TCICTL) controls TCI capture operation. TCICTL is shown in Figure 3-31and described in Table 3-24.

Figure 3-31. TCI Capture Control Register (TCICTL)

31							16
	Reserved
		R-0
15	6	5	4	3	2	1	0
Reserved		ENSTC	TCKEN	STEN	CTMODE	ERRFILT	Reserved
R-0		R/W-0	R/W-0	R/W-0	R/W-0	R/W-0	R/W-0

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

Table 3-24. TCI Capture Control Register (TCICTL) Field Descriptions

				Description
Bit	field (1)	symval (1)	Value	BT.656, Y/C Mode, or Raw Data Mode	TCI Mode
31-6	Reserved	-	0	Reserved. The reserved bit location is always read as 0. A value written to this field
				has no effect.
5	ENSTC	OF(value)		System time clock enable bit.
		DEFAULT	0	Not used.	System time clock input is disabled (to
		HALTED			save power). The system time clock
					counters and tick counter do not
					increment.
		CLKED	1	Not used.	System time input is enabled. The system
					time clock counters and tick counters are
					incremented by STCLK.
4	TCKEN	OF(value)		Tick count interrupt enable bit.
		DEFAULT	0	Not used.	Setting of the TICK bit is disabled.
		DISABLE
		SET	1	Not used.	The TICK bit in VPIS is set whenever the
					tick count is reached.

(1)For CSL implementation, use the notation VP_TCICTL_field_symval

84 Video Capture Port SPRUEM1 –May 2007

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