Table Of Contents - NEC VERSA 4000 Service Manual

Contents
Preface.........................................................................................................................
Abbreviations...............................................................................................................
Section 1 Technical Information
Hardware Overview..................................................................................................... 1-2
Liquid Crystal Display (LCD)................................................................................ 1-2
CPU Board ........................................................................................................... 1-3
I/O Board ............................................................................................................. 1-3
Sound Board......................................................................................................... 1-3
Infrared (IR) Front Assembly, Rear Assembly ....................................................... 1-4
Battery Pack ......................................................................................................... 1-4
CMOS Battery...................................................................................................... 1-4
Bridge Battery ...................................................................................................... 1-4
PCMCIA Slots...................................................................................................... 1-4
Diskette Drive and the NEC VersaBay II .............................................................. 1-5
Keyboard .............................................................................................................. 1-5
NEC VersaGlide ................................................................................................... 1-5
System Memory........................................................................................................... 1-5
Memory Map ........................................................................................................ 1-6
System Video............................................................................................................... 1-7
Parallel Interface .......................................................................................................... 1-11
Serial Interface............................................................................................................. 1-12
NEC Versa 4000 Series Chip Set ................................................................................. 1-12
Intel Pentium P54LM............................................................................................ 1-12
Cache Controller, Address Logic, Data Controller................................................. 1-13
System Logic, IDE Interface, Peripheral Controller ............................................... 1-13
Flash ROM ........................................................................................................... 1-13
ROM BIOS.................................................................................................... 1-14
VGA Controller .................................................................................................... 1-14
Video Controller Architecture ........................................................................ 1-15
Diskette Controller, Serial Interface, Parallel Interface .......................................... 1-15
Keyboard Controller ............................................................................................. 1-15
PCMCIA Controller.............................................................................................. 1-15
Interrupt Controllers ............................................................................................. 1-16
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