Texas Instruments TMS320DM648 manual Video Display Control Register Vdctl Field Descriptions

Models: TMS320DM648

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Video Display Registers

 

Table 4-7. Video Display Control Register (VDCTL) Field Descriptions

(continued)

 

 

 

 

Description

 

Bit

field (1)

symval (1)

Value

BT.656 and Y/C Mode

Raw Data Mode

23

FXS

OF(value)

 

Field external synchronization enable bit.

 

 

 

 

DEFAULT

0

VCTL3 is an output.

 

 

 

 

OUTPUT

 

 

 

 

 

 

FSINPUT

1

VCTL3 is an external field sync input.

 

 

22

VXS

OF(value)

 

Vertical external synchronization enable bit.

 

 

 

 

DEFAULT

0

VCTL2 is an output.

 

 

 

 

OUTPUT

 

 

 

 

 

 

VSINPUT

1

VCTL2 is an external vertical sync input.

 

 

21

HXS

OF(value)

 

Horizontal external synchronization enable bit.

 

 

 

DEFAULT

0

VCTL1 is an output.

 

 

 

 

OUTPUT

 

 

 

 

 

 

HSINPUT

1

VCTL1 is an external horizontal sync input.

 

 

20

VCTL3S

OF(value)

 

VCTL3 output select bit.

 

 

 

 

DEFAULT

0

Output CBLNK

 

 

 

 

CBLNK

 

 

 

 

 

 

FLD

1

Output FLD

 

 

19-18

VCTL2S

OF(value)

0-3h

VCTL2 output select bit.

 

 

 

 

DEFAULT

0

Output VSYNC

 

 

 

 

VYSYNC

 

 

 

 

 

 

VBLNK

1h

Output VBLNK

 

 

 

 

CSYNC

2h

Output CSYNC

 

 

 

 

FLD

3h

Output FLD

 

 

17-16

VCTL1S

OF(value)

0-3h

VCTL1 output select bit.

 

 

 

 

DEFAULT

0

Output HSYNC

 

 

 

 

HYSYNC

 

 

 

 

 

 

HBLNK

1h

Output HBLNK

 

 

 

 

AVID

2h

Output AVID

 

 

 

 

FLD

3h

Output FLD

 

 

15

VDEN

OF(value)

 

Video display enable bit. Other bits in VDCTL (except RSTCH and BLKDIS bits) may

 

 

 

 

only be changed when VDEN = 0.

 

 

 

 

DEFAULT

0

Video display is disabled.

 

 

 

 

DISABLE

 

 

 

 

 

 

ENABLE

1

Video display is enabled.

 

 

14

Reserved

-

0

Reserved. The reserved bit location is always read as 0. A value written to this field

 

 

 

 

has no effect.

 

 

13

RGBX

OF(value)

 

RGB extract enable bit.

 

 

 

 

DEFAULT

0

Not used.

 

 

 

 

DISABLE

 

 

 

 

 

 

ENABLE

1

Not used.

Perform

FIFO unpacking.

12

RSYNC

OF(value)

 

Second, synchronized raw data channel enable bit.

 

 

 

DEFAULT

0

Not used.

Second, synchronized raw data channel

 

 

 

 

 

is disabled.

 

 

DISABLE

 

 

 

 

 

 

ENABLE

1

Not used.

Second, synchronized raw data channel

 

 

 

 

 

is enabled.

 

SPRUEM1 –May 2007

Video Display Port

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Texas Instruments TMS320DM648 manual Video Display Control Register Vdctl Field Descriptions