Technical Information 1-17
Audio Controller
The Versa P system board contains an on-board audio controller. The audio controller is an
ESS Technology ES688S chip that provides the following features:
n
16-bit stereo audio
n
embedded microprocessor
n
Windows 2.0 sound system support
n
sound blaster pro support
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built-in speaker and microphone.
I/O Addressing
The CPU works in conjunction with I/O devices using I/O mapping. Refer to Table Section
1-7 for hex addresses.
Table Section 1-7 Versa P I/O Address Map
Address (Hex)
I/O Device Name
000-00F
DMA Controller 1
020-03F
Interrupt Controller 1
040-043
Timer 1
048-04B
Timer 2
060-064
Keyboard Controller, 8042
061
NMI Status
070
NMI Mask
070-076
Real-time Clock
081H-083H
DMA Page Register
087H
DMA Page Register
089H-08BH
DMA Page Register
08FH
DMA Page Register
092H
Port 92
0C0H-0CEH
DMA Channel
0D0H-0DEH
DMA Controller 2
0102H
Parallel Port Configuration
0278H-027AH
LPT2 Data Port
02F8H-02FFH
Serial Controller Port B
0372H-0377H
Diskette Drive Controller
Summary of Contents for VERSA P
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Page 84: ...Section 3 ...
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Page 121: ...Troubleshooting and Repair 4 18 ...
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Page 156: ...5 14 Troubleshooting and Options for the Docking Station II ...
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