Commodore Amiga A500 Technical Reference Manual page 116

PC/AT I/O
Address Usage
379 " RESET IRQ7
379 " INTERRUPT CONTROL
BIT 6 = 0 : ON
BIT6 = 0:OFF
37A " CONTROL
37A " CONTROL
3B0 MONO CRT ADDRESS INDEX REGISTER
3B0 " RESET IRQ3_a
3B2 " CRT ADDRESS INDEX REGISTER
3B2 DUMMY
3B4 " CRT ADDRESS INDEX REGISTER
3B4 DUMMY
3B6 " CRT ADDRESS INDEX REGISTER
3B6 DUMMY
3B1 " CRT DATA
3B3 " CRT DATA
3B5 " CRT DATA
3B7 " CRT DATA
3B8 MONO CONTROL REGISTER
3BA MONO STATUS
BIT 0
BIT 3
3BA DUMMY
3BB DUMMY
3BC DUMMY
3BD DUMMY
3BE DUMMY
REGISTER
REGISTER
REGISTER
REGISTER
LAST WRITE ON INDEX = 00
LAST WRITE ON INDEX = 01
LAST WRITE ON INDEX = 02
LAST WRITE ON INDEX = 03
LAST WRITE ON INDEX = 04
LAST WRITE ON INDEX = 05
LAST WRITE ON INDEX = 06
LAST WRITE ON INDEX = 07
LAST WRITE ON INDEX = 08
LAST WRITE ON INDEX = 09
LAST WRITE ON INDEX = 0A
LAST WRITE ON INDEX = 0B
LAST WRITE ON INDEX = 0C
LAST WRITE ON INDEX = 0D
LAST WRITE ON INDEX = 0E
LAST WRITE ON INDEX = 0F
REGISTER
: H-SYNC ( 18KHz )
: V-SYNC ( 50 Hz
(R)
(W)
(W)
(R)
(W)
(R)
(W)
(R)
(W)
(R)
(W)
(R)
(R/W)
(R/W)
(R/W)
(R/W)
(W)
(R)
)
(W)
(R/W)
(R/W)
(R/W)
(R/W)
113
Offset Address
INTERFACE: / AMIGA
1E1BF 7E1BF
1E19F 7E19F
1E1DF 7E1DF
1E19F 7E19F
1E1FF 7E1FF
1E01F 7E01F
1E1FF 7E1FF
1E01F 7E01F
1E1FF 7E1FF
1E01F 7E01F
1E1FF 7E1FF
1E01F 7E01F
s.b.
s.b.
s.b.
s.b
1E2A1 7E2A1
1E2A3 7E2A3
1E2A5 7E2A5
1E2A7 7E2A7
1E2A9 7E2A9
1E2AB 7E2AB
1E2AD 7E2AD
1E2AF 7E2AF
1E2B1 7E2B1
1E2B3 7E2B3
1E2B5 7E2B5
1E2B7 7E2B7
1E2B9 7E2B9
1E2BB 7E2BB
1E2BD 7E2BD
1E2BF 7E2BF
1E2FF 7E2FF
1E01F 7E01F
1E01F 7E01F
1E01F 7E01F
1E01F 7E01F
1E01F 7E01F