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Integrated Functions (Continued)

10:0

V_BLANK_

START

Vertical Blank Start: This field represents the line at which the vertical blanking signal becomes

active minus 1. If the display is interlaced, this value should be programmed to V_ACTIVE plus 1.

Note: All values are specified in lines. For interlaced display, no border is supported, so blank timing is implied by the total/active tim-

ing.

GX_BASE+8348h-834Bh

DC_V_TIMING_3 Register (R/W)

Default Value = xxxxxxxxh

31:27

RSVD

Reserved: Set to 0.

26:16

V_SYNC_END

Vertical Sync End: This field represents the line at which the CRT vertical sync signal becomes

inactive minus 1.

15:11

RSVD

Reserved: Set to 0.

10:0

V_SYNC_START

Vertical Sync Start: This field represents the line at which the CRT vertical sync signal becomes

active minus 1. For interlaced display, note that the vertical counter is incremented twice during each

line and since there are an odd number of lines, the vertical sync pulse will trigger in the middle of a

line for one field and at the end of a line for the subsequent field.

Note: All values are specified in lines.

GX_BASE+834Ch-834Fh

DC_FP_V_TIMING Register (R/W)

Default Value = xxxxxxxxh

31:27

RSVD

Reserved: Set to 0.

26:16

FP_V_SYNC

_END

Flat Panel Vertical Sync End: This field represents the line at which the flat panel vertical sync sig-

nal becomes inactive minus 2. Note that the internal flat panel vertical sync is latched by the flat

panel horizontal sync prior to being output to the panel.

15:11

RSVD

Reserved: Set to 0.

10:0

FP_VSYNC

_START

Flat Panel Vertical Sync Start: This field represents the line at which the internal flat panel vertical

sync signal becomes active minus 2. Note that the internal flat panel vertical sync is latched by the

flat panel horizontal sync prior to being output to the panel.

Note: All values are specified in lines.

Table 4-32. Display Controller Timing Registers (Continued)

Bit

Name

Description

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