Commodore 128 Programmer's Reference Manual page 542

532 COMMODORE 128
C128 Memory Map (continued)
MEMORY
ADDRESS
LABEL
HEXADECIMAL DECIMAL
ADDRESS ADDRESS DESCRIPTION
ADDRESS AND DATA REGISTER BITS
7 6 5 4 3 2 1 0
D600 WRITE
READ
VDCDAT
— — R5 R4 R3 R2 Rl RO
STATUS LP VBLANK — — — — —
D601 54785 8563 DATA REGISTER
D601-
OATA D7 D6 D5 D4 D3 D2 Dl DO
0
si
ADDITIONAL 8563 REGISTERS ARE NOT VISIBLE TO THE 8502
D700 55040 RESERVED I/O BLOCK
VICCOL D800 55296 VIC COLOR MATRIX, 1 KB
($D800-$DBFF)
6526 CIA#1, COMPLEX INTERFACE ADAPTER #1
KEYBOARD, JOYSTICK, PADDLES, LIGHTPEN, FAST DISK
D1PRA
BITS ($DC00)
0
1
2
3
4
5
6
7
PRAO:
PRA1 :
PRA2:
PRA3:
PRA4:
PRA5:
PRA6:
PRA7:
D1PRB
BITS ($DC01)
DC00 56320 PORT A (OUTPUT KEYBOARD
COLUMNS)
KEYBD O/P CO/JOY #1 DIRECTION
KEYBD O/P Cl/JOY #1 DIRECTION
KEYBD O/P C2/JOY #1 DIRECTION/PADDLE FIRE BUTTON
KEYBD O/P C3/JOY #1 DIRECTION/PADDLE FIRE BUTTON
KEYBD O/P C4/JOY #1 FIRE BUTTON
KEYBD O/P C5/
KEYBD O/P C6/ /SELECT PORT #1 PADDLES
KEYBD O/P C7/ /SELECT PORT #2 PADDLES
DC01 56321 PORT B (INPUT KEYBOARD ROWS)
0
1
2
3
4
5
6
7
PRBO:
PRB1:
PRB2:
PRB3:
PRB4:
PRB5:
PRB6:
PRB7:
KEYBD I/P R0/JOY #2 DIRECTION
KEYBD I/P Rl/JOY #2 DIRECTION/PADDLE FIRE BUTTON
KEYBD I/P R2/JOY #2 DIRECTION/PADDLE FIRE BUTTON
KEYBD I/P R3/JOY #2 DIRECTION/
KEYBD I/P R4/JOY #2 FIRE BUTTON
KEYBD I/P R5/
KEYBD I/P R6/TIMER B: TOGGLE /PULSE OUTPUT
KEYBD I/P R7/TIMER A: TOGGLE /PULSE OUTPUT
D1DDRA
D1DDRB
D1T1L
DC02
DC03
DC04
56322
56323
56324
DATA DIRECTION PORT A
DATA DIRECTION PORT B
TALO
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