DEC VT220 - 9007 VPAC: Status Register

ADDRESS 17CBH (WR)
07 06 05 04
03
02
01
00
SCROLL
I I
NOT
OR
INTERLACE
OPERATING
CURS
USED
BLANK
MODE
MODE
HEIGHT
I
IBAD7 H! ... -et-------------------- ..... IBADO HI
BIT VALUES
BIT 6
BIT
4-5
BIT 1-3
BiT 0
o
DO
01
10
11
000
o
ENABLE SMOOTH SCROLL FOR SELECTED DATA
ROWS
ASSERT CBLANK H
FOR SELECTED DATA ROWS
NON-INTERLACED MODE
NOT USED IN
VT220
NOT USED IN VT220
NOT USED IN VT220
REPETITIVE ADDRESSING MODE INO OTHER
CODES USED IN VT220!
DOUBLE HEIGHT CURSOR
ON DOUBLE HEIGHT
ROW, SINGLE HEIGHT ON SINGLE HEIGHT ROW
SINGLE HEIGHT
ON SINGLE HEIGHT ROW
SINGLE HEIGHT ON TOP OF HALF OF DOUBLE
HEIGHT ROW
Figure C-24
9007 VPAC: Control Register
ADDRESS
ADDRESS
17CCH {WR, LOW BYTEI
17CDH
tWA, HIGH BYTE}
07
06
05
04 03 02 01
00
15 14
,,,;,,,
M~DE
13 12 11 10 09
08
IBAD? Hi ..... t----------------------. .... IBADD HI
BIT VALUES
BIT 14-15 DO
01
10
11
BIT 0-13 xx
Figure C-25
SEOUENTIAL ADDRESSING MODE
,NOT USED IN VT220
NOT USED IN VT220
NOT USED IN VT220
BINARY DEFINITIONS OF FIRST ADDRESS OF
THE ROW TADlE STORED IN RAM
9007 VPAC: Table Address Register
C-15