IBM 770 manual Appendix A. System Resources

Appendix A. System Resources

The following summarizes the available system resources for the computer and docking stations. Values in parentheses are alternative values that are selectable in the ThinkPad Configurations program or application programs. The default values are highlighted.

System		IRQ	I/O	Address		Memory	DMA
Resource			(Hex)			Address (Hex)	Channel
Timer		0	0040–0043			None	None
Keyboard		1	0060	and	0064	None	None
Serial	port	Disabled	Disabled			None	None
		4	03F8–03FF
		3	02F8–02FF
		4	03E8–03EF
		3	02E8–02EF
Parallel	port	7	03BC–03BE			None	0,	1,	3,
			(and				or
			07BC–07BE		ñ)		disabledò
		7	0378–037F
			(and
			0778–077A		ñ)
		5	0278–027F
			(and
			0678–067A		ñ)
		Disabled	Disabled
Infrared port 4 , 3, or			03F8–03FF		,	None	0	and	3
		disabled	02F8–02FF,				or
			02E8–02EF,		or		disabled
			03E8–03EF
Diskette		6	03F0–03F7			None	2
controller
Video		None	03BA,			A0000–BFFFF	None
controller			03B4–03B5,			and
			03C0–03CF,			C0000–C9FFF
			03D4–03D5,
			03D8–03D9,
			03DA,
			2100–21FF,
			2200–2203,
			2300–2323

 Copyright IBM Corp. 1997 A-1