A total of 255 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/8 is the Most Significant Bit and switch SW1/1 is the Least Significant Bit. Turn off the switches and add the values of the switches to obtain the correct memory address.
ROM ADDRESS SELECTION
Address
PROM Address
SW1/1
SW1/2
SW1/3
SW1/4
SW1/5
C:0000-C:07FFh
C:2000-C:3FFFh
On
On
On
On
On
C:0800-C:0FFFh
C:2000-C:3FFFh
Off
On
On
On
On
C:1000-C:17FFh
C:2000-C:3FFFh
On
Off
On
On
On
C:1800-C:1FFFh
C:2000-C:3FFFh
Off
Off
On
On
On
C:4000-C:47FFh
C:6000-C:7FFFh
On
On
Off
On
On
C:4800-C:4FFFh
C:6000-C:7FFFh
Off
On
Off
On
On
C:5000-C:57FFh
C:6000-C:7FFFh
On
Off
Off
On
On
C:5800-C:5FFFh
C:6000-C:7FFFh
Off
Off
Off
On
On
C:C000-C:C7FFh
C:E000-C:FFFFh
On
On
On
Off
On
C:C800-C:CFFFh
C:E000-C:FFFFh
Off
On
On
Off
On
C:D000-C:D7FFh
C:E000-C:FFFFh
On
Off
On
Off
On
C:D800-C:DFFFh
C:E000-C:FFFFh
Off
Off
On
Off
On
D:0000-D:07FFh
D:2000-D:3FFFh
On
On
Off
Off
On
D:0800-D:0FFFh
D:2000-D:3FFFh
Off
On
Off
Off
On
D:1000-D:17FFh
D:2000-D:3FFFh
On
Off
Off
Off
On
D:1800-D:1FFFh
D:2000-D:3FFFh
Off
Off
Off
Off
On
D:4000-D:47FFh
D:6000-D:7FFFh
On
On
On
On
Off
D:4800-D:4FFFh
D:6000-D7FFFh
Off
On
On
On
Off
D:5000-D:57FFh
D:6000-D:7FFFh
On
Off
On
On
Off
D:5800-D:5FFFh
D:6000-D:7FFFh
Off
Off
On
On
Off
D:8000-D:87FFh
D:A000-D:BFFFh
On
On
Off
On
Off
D:8800-D:8FFFh
D:A000-D:BFFFh
Off
On
Off
On
Off
D:9000-D:97FFh
D:A000-D:BFFFh
On
Off
Off
On
Off
D:9800-D:9FFFh
D:A000-D:BFFFh
Off
Off
Off
On
Off
D:C000-D:C7FFh
D:E000-D:FFFFh
On
On
On
Off
Off
D:C800-D:CFFFh
D:E000-D:FFFFh
Off
On
On
Off
Off
D:D000-D:D7FFh
D:E000-D:FFFFh
On
Off
On
Off
Off
D:D800-D:DFFFh
D:E000-D:FFFFh
Off
Off
On
Off
Off
E:0000-E:07FFh
E:2000-E:3FFFh
On
On
Off
Off
Off
E:0800-E:0FFFh
E:2000-E:3FFFh
Off
On
Off
Off
Off
E:1000-E17FFh
E:2000-E:3FFFh
On
Off
Off
Off
Off
E:1800-E:1FFFh
E:2000-E:3FFFh
Off
Off
Off
Off
Off
BASE I/O ADDRESS SELECTION
Setting
SW1/6
SW1/7
SW1/8
260-26Fh
On
On
On
290-29Fh
Off
On
On
2E0-2EFh
On
Off
On
2F0-2FFh
Off
Off
On
300-30Fh
On
On
Off
350-35Fh
Off
On
Off
380-38Fh
On
Off
Off
3E0-3EFh
Off
Off
Off
MISCELLANEOUS TECHNICAL NOTES
Note: Jumper JP2 sets the interrupt line, however the exact configuration is unidentified.