Commodore Amiga A500 Technical Reference Manual page 119

PCIAT I10
Address Usage
Offset Address
INTERFACE 1 Amiga
"
RESETIRQ7
"
INTERRUPT CONTROL
B I T 6
=
0 : O N
BIT 6
=
0
:
OFF
"
CONTROL
"
CONTROL
MONO CRT ADDRESS INDEX REGISTER
" RESET IRQ3-a
" CRT ADDRESS INDEX REGISTER
DUMMY
"
CRT ADDRESS INDEX REGISTER
DUMMY
"
CRT ADDRESS INDEX REGISTER
DUMMY
"
CRT DATA REGISTER
"
CRT DATA REGISTER
"
CRT DATA REGISTER
"
CRT DATA REGISTER
LAST WRlTE ON INDEX
=
00
LAST WRlTE ON INDEX
=
0 1
LAST WRlTE ON INDEX
=
0 2
LAST WRlTE ON INDEX
=
03
LAST WRlTE ON INDEX
=
0 4
LAST WRITE ON INDEX
=
0 5
LAST WRITE ON INDEX
=
06
LAST WRlTE ON INDEX
=
07
LAST WRlTE ON INDEX
=
08
LAST WRlTE ON INDEX
=
09
LAST WRlTE ON INDEX
=
OA
LAST WRlTE ON INDEX
=
OB
LAST WRlTE ON INDEX
=
OC
LAST WRlTE ON INDEX
=
OD
LAST WRITE ON INDEX
=
OE
LAST WRlTE ON INDEX
=
OF
MONO CONTROL REGISTER
MONO STATUS REGISTER
BIT 0
:
H-SYNC ( 18KHz )
BIT 3
:
V-SYNC ( 5 0
HZ
)
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
DUMMY
(R)
1E1BF 7 E l B F
(W)
1E19F 7E19F
(W)
l E l D F 7 E l D F
(R)
1E19F 7E19F
(W)
lEO1F 7E01F
( W ) lEO1F
7EOlF
( W ) 1 E01 F
7E01 F
( W )
l E01 F 7E01 F
( W )
1EOlF 7E01F
( W )
1EOlF 7E01F