DEC VT220 - 9007 VPAC: Horizontal Sync Width Register

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ADDRESS 1

7C3H

(WRj

oi

06

05 04 03

02

01

00

,BAD7 HI

..

41-------------------

.... IBAOO

H)

BIT VALUES

BIT

0-7

xx

BINARY DEFINITION

OF

NUMBER

OF

CHARACTER

TIMES IN HORIZONTAL

SYNC

WIDTH

Figure

C-l7

9007

VPAC:

Horizontal

Sync

width

Register

ADDRESS

17C4H

(WRj

07

06 05 04 03

02

01

00

IBAD7 HI

..

41-------------------

.... (BADO HI

BiT VALUES

BIT

0-7

xx

BINARY DEFINiTION

OF

NUMBER

OF

HORIZONTAL PERIODS

IN

THE

VERTICAL

SYNC

WIDTH

Figure

C-18

9007

VPAC:

vertical

Sync

Width

Register

ADDRESS

07

06

17CSH

(WRj

05

04 03

02

01

00

IBAD7 HI

..

41------------------_

.....

,BADO HI

BiT VALUES

BiT

0-7

xx

BINARy DEFINITION

OF

NUMBER

OF

HORIZONTAL PERIODS. MINUS

ONE.

FROM

LEADiNG

EDGE

OF

VERT

SYNC l

TO

LEADING

EDGE

OF

VLT H ,FOR

THE

FIRST SCAN LINE

OF

FIRST DATA ROW)

Figure

C-l9

9007

VPAC:

Vertical

Sync

Delay

Register

C-12

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