Lenovo ThinkPad 770E-ED Technical Reference Manual for the ThinkPad 770 - Page 73

Appendix A. System Resources, program or application programs.

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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 Resource Timer Keyboard Serial port Parallel port Infrared port Diskette controller Video controller IRQ 0 1 Disabled 4 3 4 3 7 7 5 Disabled 4, 3, or disabled 6 I/O Address (Hex) 0040-0043 0060 and 0064 Disabled 03F8-03FF 02F8-02FF 03E8-03EF 02E8-02EF 03BC-03BE (and 07BC-07BE ) 0378-037F (and 0778-077A ) 0278-027F (and 0678-067A ) Disabled 03F8-03FF, 02F8-02FF, 02E8-02EF, or 03E8-03EF 03F0-03F7 None 03BA, 03B4-03B5, 03C0-03CF, 03D4-03D5, 03D8-03D9, 03DA, 2100-21FF, 2200-2203, 2300-2323 Memory Address (Hex) None None None None None None A0000-BFFFF and C0000-C9FFF DMA Channel None None None 0, 1, 3, or disabled 0 and 3 or disabled 2 None © Copyright IBM Corp. 1997 A-1

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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
Resource
IRQ
I/O Address
(Hex)
Memory
Address (Hex)
DMA
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
(and
07BC–07BE
²
)
None
0, 1, 3,
or
disabled
±
7
0378–037F
(and
0778–077A
²
)
5
0278–027F
(and
0678–067A
²
)
Disabled
Disabled
Infrared port
4
, 3, or
disabled
03F8–03FF
,
02F8–02FF,
02E8–02EF, or
03E8–03EF
None
0 and 3
or
disabled
Diskette
controller
6
03F0–03F7
None
2
Video
controller
None
03BA,
03B4–03B5,
03C0–03CF,
03D4–03D5,
03D8–03D9,
03DA,
2100–21FF,
2200–2203,
2300–2323
A0000–BFFFF
and
C0000–C9FFF
None
Copyright IBM Corp. 1997
A-1