HP OmniBook 800 Getting Started Manual page 29

I/O Addresses
60 and 64 Keyboard controller
70 and 71 RTC CMOS, bytes 0 to 127
74 and 76, RTC CMOS, bytes 128 to 255
re-mappable
220-22F or Sound
240-24F or
250-25F and
300-301 or
310-311 or
320-321 or
330-331 and
388-38B
3F8-3FF Serial COM1 port
2F8-2FF Serial COM 2 port
3E8-3EF Serial COM3 port
2E8-2EF Serial COM4 port
3000-301F IrDA
378-37F Parallel LPT1 port
and 778-77A in ECP mode
278-27F Parallel LPT2 port
and 678-67A in ECP mode
3F2-3F7 (primary) Floppy drive
1F0-1F7 and Hard-disk drive
3F6-3F7 (primary)
Starting Out with Your OmniBook
Special Features
1-23