I/O Address Map; System I/O Address Map - Mitsubishi Electric APRICOT FT//EX User Manual

2.7.2

I/O Address Map

Table 2-5

System I/O Address Map

Address
Range (hex)
000 ~ 01F
020 ~ 027
030 ~ 037
040 ~ 047
050 ~ 057
060 ~ 06F
070 ~ 07F
080 ~ 09F
0A0 ~ 0BF
0C0 ~ 0DF
0F0
0F1
0F8 ~ 0FF
*
800 ~ 8FF
2-18 Owner's Handbook
DMA Controller-1, 8273
Interrupt Controller-1, 8259
Interrupt Controller-1, 8259
System Timer (8254-1)
System Timer (8254-1)
Keyboard Controller 8742
Real-Time Clock, NMI Mask
DMA Page Register 74LS612
Speed Status Register
Interrupt Controller-2, 8259
DMA Controller-2, 8237
Clear Math Coprocessor BUSY
Reset Coprocessor
Math Coprocessor
NV RAM Address
Device