I/O Address Map - Epson CW3S16 Operation Manual

I/O Address Map

Hex Range
000-01 F
020-03F
040-05F
060-06F
070-07F
080-09F
OAO-OBF
OCO-ODF
OF0
OF1
OF8-OFF
378-37F
3FO-3F7
3F8-3FF
Note: l/O address, hex 000 to FFF are reserved for the system board I/O.
Hex 100 to 3FF are available on the l/O channel,
A-4 Specifications
Device
8237A-5 DMA Controller
8259A Interrupt Controller #1
8254-2 Timer
8042 (Keyboard)
Real Time Clock NMI (Non-Ma&able Interrupt) Mask
74LS612 DMA Page Register
8259A Interrupt Controller #2
8237A-5 DMA Controller #2
Clear Math Coprocessor Busy
Reset Math Coprocessor
Math Coprocessor
Parallel Printer Port 1
Diskette Controller
Serial Port 1
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