Epson Epson System l/O Address Map

System l/O Address Map

Hex	address	Assigned			device
0 0 0	. O l F	DMA	controller				1,	8237
0 2 0	0 3 F	Interrupt controller						1,	8259
0 2 2	0 2 4	Reserved
0 4 0	0 5 F	Timer,	8254
0 6 0	0 6 F	Keyboard			controller,				8242PE
0 7 0	0 7 F	Real-time clock NMI (non-maskable interrupt)
0 8 0	. 0 9 F	DMA	page			register,			74LS612
OAO OBF		Interrupt controller						2,	8259
OCO-ODF		DMA	controller				2,	8237
OF0		Clear	math			coprocessor
OF1		Reset	math			coprocessor
0 F 8 - O F F		Math	coprocessor
1 F 0	- 1 F 8	Primary		hard		disk		interface
1 E 0 - 1 E 7		Secondary			hard disk				interface
2 0 0	- 2 0 7	Game		I/O
2 7 8	- 2 7 F	Parallel		printer			port	2
2 8 0	- 2 D F	Alternate			enhanced				graphics adapter
2E1		GPIB	(adapter				0)
2E2,	2E3	Data	acquisition (adapter 0)
2 F 8 - 2 F F		Serial	port		2
3 0 0	. 3 1 F	Prototype			card
3 6 0	- 3 6 3	Available
3 6 8	- 3 6 B	Available
3 7 8	- 3 7 F	Parallel		printer			port	1
3 8 0	- 3 8 F	Available
3 9 0	- 3 9 3	Available
3 A 0 - 3 A F		Available
3 8 0	- 3 B F	Available
3 C 0 - 3 C F		Available
3 D 0 - 3 D F		Available
3 F 0 - 3 F 7		Diskette drive					controller
3 F 8 - 3 F F		Serial	port		1

Specifications A-13