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VERSA P
Service Manual
177 pgs2.39 Mb0
user Manual
153 pgs1.29 Mb0
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NEC Versa P Service Manual

PROPRIETARY NOTICE AND LIABILITY DISCLAIMER
The information disclosed in this document, including all designs and related materials, is the valuable property of NEC Corporation (NEC) and/or its licensors. NEC and/or its licen­sors, as appropriate, reserve all patent, copyright and other proprietary rights to this docu­ment, including all design, manufacturing, reproduction, use, and sales rights thereto, except to the extent said rights are expressly granted to others.
The NEC product(s) discussed in this document are warranted in accordance with the terms of the Warranty Statement accompanying each product. However, actual performance of each such product is dependent upon factors such as system configuration, customer data, and operator control. Since implementation by customers of each product may vary, the suitability of specific product configurations and applications must be determined by the customer and is not warranted by NEC.
To allow for design and specification improvements, the information in this document is subject to change at any time, without notice. Reproduction of this document or portions thereof without prior written approval of NEC is prohibited.
FastFacts, and NEC SVGA, are U.S. trademarks of NEC Technologies, Inc. All other product, brand, or trade names used in this publication are the trademarks or registered
trademarks of their respective trademark owners.
First Printing — February 1995
Copyright 1995 Copyright 1995
NEC Technologies, Inc. NEC Corporation
1414 Massachusetts Avenue 7-1 Shiba 5-Chome, Minato-Ku
Boxborough, MA 01719 Tokyo 108-01, Japan
All Rights Reserved All Rights Reserved
xiii

Preface

This service and reference manual contains the technical information necessary to set up, maintain, troubleshoot, and repair the NEC Versa™ P Series Notebook systems. It also provides hardware and interface information for users who need an overview of the com­puter system design. The manual is written for NEC-trained customer engineers, system analysts, service center personnel, and dealers.
The manual is organized as follows: Section 1 Technical Information, provides an overview of the hardware and interface
components. System specifications are listed including computer dimensions, weight, envi­ronment, safety compliance, power consumption, and system memory specifications.
Section 2Setup and Operation, takes the user from unpacking to setup and operation. The section includes a description of operating controls, setting parameters and accessing the NEC bulletin board system (BBS).
Section 3Options, provides the user with installation procedures for the Versa P series options.
Section 4Troubleshooting and Repair, includes maintenance, troubleshooting, disas- sembly and reassembly, and illustrated parts breakdown information. NEC service and spare parts ordering information is also provided. Included is a list of NEC service and informa­tion telephone numbers that provide access to the NEC Bulletin Board System (BBS), FASTFACTS, and Technical Information Bulletins.
Section 5Troubleshooting and Options for the Docking Station II, includes mainte- nance, troubleshooting, disassembly and reassembly, and illustrated parts breakdown infor­mation for the optional NEC Docking Station II.
Appendix AConnector Locations and Pin Assignments, provides a list of the main board internal connector pin assignments and a list of external pin assignments.
An Index is included for convenience.

Abbreviations

xv
A ampere AC alternating current AT advanced technology
(IBM PC)
BBS Bulletin Board System BCD binary-coded decimal BCU BIOS Customized Utility BIOS basic input/output system bit binary digit bpi bits per inch bps bits per second BUU BIOS Upgrade Utility C centigrade Cache high-speed buffer storage CAM constantly addressable memory CAS column address strobe CD-ROM compact disk-ROM CGA Color Graphics Adapter CGB Color Graphics Board CH channel clk clock cm centimeter CMOS complementary metal oxide
semiconductor
COM communication CONT contrast CPGA ceramic pin grid array CPU central processing unit CRT cathode-ray tube DAC digital-to-analog converter DACK DMA acknowledge DC direct current DIP dual in-line package DLAB Divisor Latch Address bit DMA direct memory access DMAC DMA controller
DOS disk operating system DRAM dynamic RAM DTE data terminal equipment ECC error checking and correction EDS error detecting system EGA Enhanced Graphics Adapter EMS Expanded Memory
Specification
EPP enhanced parallel port EPROM erasable and programmable
ROM
EVGA Enhanced Video Graphics
Array
F Fahrenheit FAX facsimile transmission FCC Federal Communications
Commission
FG frame ground FM frequency modulation Fn Function FRU field-replaceable unit GB gigabyte GND ground HDD hard diskdrive HEX hexadecimal HGA Hercules Graphics Adapter Hz hertz IC integrated circuit ID identification IDE intelligent device electronics IDTR interrupt descriptor table
register
IMR Interrupt Mask register in. inch INTA interrupt acknowledge IPB illustrated parts breakdown
xvi Abbreviations
IRR Interrupt Request register ISA Industry Standard Architecture ISR In Service register I/O input/output IPC integrated peripheral controller ips inches per second IRQ interrupt request K kilo (1024) k kilo (1000) KB kilobyte kg kilogram kHz kilohertz kV kilovolt lb pound LDTR local descriptor table register LED light-emitting diode LSB least-significant bit LSI large-scale integration M mega mA milliamps max maximum MB megabyte MDA Monochrome Display Adapter MFM modified frequency modulation Mhz megahertz mm millimeter ms millisecond MSB most-significant bit NASC National Authorized Service
Center
NC not connected NDP numeric data processor NMI Non-maskable Interrupt ns nanosecond NSRC National Service Response
Center
PAL programmable array logic PC personal computer
PCB printed circuit board PFP plastic flat package PIO parallel input/output pixel picture element PJQFP plastic J-lead quad flat pack PLCC plastic lead chip carrier PLL phase lock loop p-p peak-to-peak PPI programmable peripheral
interface
PROM programmable ROM QFP quad flat pack RAM random-access memory RAMDAC RAM digital-to-analog RAS row address strobe RGB red green blue RGBI red green blue intensity ROM read-only memory rpm revolutions per minute R read RTC real-time clock R/W read/write S slave SCSI Small Computer System
Interface
SDLC Synchronous Data Link
Control
SG signal ground SIMM single inline memory module SQFP silver quad flat package SVGA Super Video Graphics Array SW switch TAC Technical Assistance Center TCP Thin chip package TQFP Thin-quad flat package TSC Technical Support Center TTL transistor/transistor logic tpi tracks per inch
UART universal asynchronous
receiver/transmitter
V volt Vdc volts, direct current VESA video electronics standards
association
VFO variable frequency oscillator VGA Video Graphics Array VLSI very large-scale integration VRAM virtual RAM W watt W write µf microfarad µPD microprocessor µs microsecond
Abbreviations xvii
Ω ohm

Contents

Section 1 Technical Information
Liquid Crystal Display (LCD)............................................................................... 1-3
CPU Board ........................................................................................................... 1-4
System Board....................................................................................................... 1-4
Primary Battery .................................................................................................... 1-4
Secondary Battery ................................................................................................ 1-4
CMOS Battery...................................................................................................... 1-5
Bridge Battery...................................................................................................... 1-5
VersaBay PCMCIA Module Option...................................................................... 1-5
iii
Keyboard.............................................................................................................. 1-5
VersaTrack........................................................................................................... 1-5
Memory Map........................................................................................................ 1-6
System Logic ........................................................................................................ 1-14
Flash ROM........................................................................................................... 1-14
ROM BIOS .................................................................................................. 1-14
Peripheral Controller............................................................................................. 1-15
Video Controller Architecture....................................................................... 1-15
Diskette Controller, Serial Interface, Parallel Interface.......................................... 1-16
Keyboard Controller............................................................................................. 1-16
PCMCIA Controller ............................................................................................. 1-16
Audio Controller................................................................................................... 1-17
I/O Addressing ..................................................................................................... 1-17
Interrupt Controllers............................................................................................. 1-18
iv Contents
System Power Management.................................................................................. 1-19
Plug and Play ........................................................................................................ 1-20
Local Power Management .................................................................................... 1-20
Section 2 Setup and Operation
Cable Connections................................................................................................ 2-2
Power Management Status ................................................................................... 2-4
Battery Status............................................................................................... 2-6
Function Keys (Fn Keys) ...................................................................................... 2-6
Dip Switch............................................................................................................ 2-7
POST Errors ........................................................................................................ 2-9
Auto Setup........................................................................................................... 2-10
Accessing Auto Setup........................................................................................... 2-10
Auto Setup Keys........................................................................................... 2-11
Parameter Descriptions......................................................................................... 2-12
Comms......................................................................................................... 2-12
Drives........................................................................................................... 2-13
Keyboard...................................................................................................... 2-13
Power........................................................................................................... 2-13
System.......................................................................................................... 2-14
Time/Date..................................................................................................... 2-14
System Password.................................................................................................. 2-16
Using the System Password .......................................................................... 2-16
Keyboard Lock Hotkey......................................................................................... 2-17
BACKLITE.EXE ................................................................................................. 2-17
Contents v
CMOSCOPY.EXE............................................................................................... 2-17
CMOSDUMP.EXE.............................................................................................. 2-18
ENABLACU Utility ............................................................................................. 2-18
HIGHLITE.EXE.................................................................................................. 2-18
VIDEOMOD.COM.............................................................................................. 2-18
WBATTERY.EXE............................................................................................... 2-18
BIOS Customize Utility (BCU)............................................................................. 2-18
BIOS Update Utility (BUU) ................................................................................. 2-18
Precautions................................................................................................... 2-19
Downloading the Update Utility.................................................................... 2-19
Using the Update Utility ............................................................................... 2-20
Menu Functions............................................................................................ 2-21
AC Adapter.......................................................................................................... 2-25
Battery Power ...................................................................................................... 2-26
Recharging the Battery Pack......................................................................... 2-26
Discharging the Battery Pack........................................................................ 2-27
Saving Battery Power........................................................................................... 2-29
Power Saving Levels ............................................................................................ 2-30
Active Mode ................................................................................................. 2-30
Local Stand-by Mode ................................................................................... 2-30
Suspend Mode.............................................................................................. 2-30
Audio................................................................................................................... 2-31
Line-In.......................................................................................................... 2-31
Microphone.................................................................................................. 2-31
CD-ROM Reader.......................................................................................... 2-31
Mixing.......................................................................................................... 2-32
Playing Back......................................................................................................... 2-32
Video ................................................................................................................... 2-32
Section 3 Options
vi Contents
Memory/Storage Card.......................................................................................... 3-11
Fax/Modem Card.................................................................................................. 3-11
Fax/Modem Card — Single Connection Installation.............................................. 3-11
Fax/Modem Card — Dual Connection Installation................................................ 3-14
Section 4 Troubleshooting and Repair
Technical Support................................................................................................. 4-2
Product Information ............................................................................................. 4-2
Ordering Information from FastFacts.................................................................... 4-3
Cleaning the System's Exterior.............................................................................. 4-4
Cleaning the System's Interior............................................................................... 4-4
Cleaning the VersaTrack....................................................................................... 4-5
Diagnosing and Solving Problems......................................................................... 4-6
Remote Technical Support.................................................................................... 4-8
NEC Communications Assistant ........................................................................... 4-9
Diagnostic Output and Beep Codes....................................................................... 4-9
Primary Battery Pack (NiMH Battery).................................................................. 4-13
Memory Card....................................................................................................... 4-14
Hard Disk Drive ................................................................................................... 4-15
LCD..................................................................................................................... 4-17
Top Cover, Keyboard........................................................................................... 4-19
LCD Indicator Panel............................................................................................. 4-21
Diskette Drive ...................................................................................................... 4-22
CMOS Battery...................................................................................................... 4-24
Contents vii
CPU Board ........................................................................................................... 4-25
Bridge Battery...................................................................................................... 4-26
System Board....................................................................................................... 4-28
Section 5 Troubleshooting and Options for the Docking Station II
CRT Base/Top Cover Assembly ........................................................................... 5-4
Top Cover Mask Assembly................................................................................... 5-6
Blank Panels......................................................................................................... 5-6
Power Switch Assembly........................................................................................ 5-6
Interface Board..................................................................................................... 5-8
Backplane Board .................................................................................................. 5-10
LED Panel Board ................................................................................................. 5-12
Sound Board ........................................................................................................ 5-13
Drive Signal Cables............................................................................................... 5-13
Power Supply....................................................................................................... 5-15
Expansion Board Installation ................................................................................ 5-18
Diskette/Tape Drive Installation............................................................................ 5-21
Hard Disk Drive Installation ................................................................................. 5-23
External CRT Monitor Installation........................................................................ 5-24
External Keyboard and Mouse Installation............................................................ 5-26
Headphones and Microphone Installation.............................................................. 5-27
Parallel Printer Installation.................................................................................... 5-28
RS-232C Device ................................................................................................... 5-29
Appendix A Connector Locations and Pin Assignments
List of Figures
viii Contents
3-19 Opening the Rear Cover.................................................................................3-22
Contents ix
x Contents
List of Tables
Contents xi
A-11 Hard Disk Drive Connector ........................................................................... A-11
A-12 Internal Diskette Drive Connector..................................................................A-13
xii Contents
Section 1

Technical Information

The NEC Versa P series computers integrate Intel's Pentium® P54C-75 MHz microproces­sor. The systems offer a unique transportable unit in the following configurations:
n Versa 75P 75-MHz CPU, Thin-film transistor (TFT), color LCD, 8-MB stan-
dard RAM, 16 KB cache RAM (internal), 256 KB cache RAM (external), 256­KB ROM
n Versa 75P 75-MHz CPU, Super VGA (SVGA), color LCD, 8-MB standard
RAM, 16 KB cache RAM (internal), 256 KB cache RAM (external), 256-KB ROM
Figure Section 1-1 and Figure Section 1-2 show system features.
Brightness Control
Memory Compartment
Hard Disk Drive
Diskette Drive/ Secondary Battery
Figure Section 1-1 Versa P Series (Right Side View)
1-2 Technical Information
PCMCIA Slot 1
PCMCIA Slot 0
Figure Section 1-2 Versa P Series (Left Side View)
Battery
VersaTrack
HARDWARE OVERVIEW
The base unit includes a color LCD panel, a 2 1/2-inch 340-MB, 540-MB, or 810-MB hard disk drive, a 3 1/2-inch, 1.44-MB diskette drive (VersaBay), a primary battery pack, and a PS/2 compatible 83-key keyboard. A 79-key keyboard is used for U.K. and Germany.
One memory card slot is available for the addition of a 4-, 8-, 12-, 16-, or 32-MB capacity memory card. Two Personal Computer Memory Card International Association (PCMCIA) card slots, supported by the Cirrus Logic CL-PD6720-B PCMCIA controller, allow for the addition of either two PCMCIA Type II cards or one PCMCIA Type III card. The PCMCIA controller is compatible with the Intel 82365B chip set used in earlier Versa sys­tems.
Figure Section 1-3 shows the standard I/O interface ports on the system's rear panel. These include one 6-pin shared PS/23-style keyboard/mouse port, one 15-pin Super VGA CRT port, one 9-pin (RS-232C) serial port, one 25-pin enhanced printer (parallel) port, one mi­crophone port, one headphones port, one line-in port, one expansion port (for the optional Docking Station II or port replicator), and one 4-pin power connector port.
Technical Information 1-3
Line-In
Keyboard/Mouse Port
Port
Printer Port
Serial Port
CRT Port
Power Connector Port
Expansion Port
Headphones Port
Microphone Port
Figure Section 1-3 Versa P Series (Rear View)
Liquid Crystal Display (LCD)
The system integrates a built-in LCD. The LCD supports VESA Local (VL) bus video. The LCD operates with the Chips & Technologies 65545A VGA controller. The controller sup­ports Super VGA. For more information on the 65545A VGA controller, read the descrip­tion provided in the Versa P Series Chip Set subsection.
The Versa P system features the following types of LCDs.
n TFT — thin-film transistor color LCD, 0.3mm dot pitch, 12-bit digital interface,
640 x 480 resolution, 64,000 colors.
n SVGA — TFT color LCD, 0.3mm dot pitch, 12-bit digital interface, 800 x 600
resolution, 256 out of 227,000 colors.
In addition, the CRT port on the system's rear panel allows the user to connect an optional monochrome or color external display to the system. The computer supports the LCD and external display simultaneously.
Power-saving features for controlling the LCD's backlighting include the ROM-based hot key Fn F5, DOS BACKLITE.EXE utility, and Auto Setup power management settings. See Section 2, Setup and Operation, for information on using these settings. In addition, the automatic LCD status sense feature conserves the backlight. When the LCD is closed the backlight shuts off, saving battery power.
1-4 Technical Information
CPU Board
The CPU board is a 75-MHz (model G8SBJ) board. It connects to the system board via connectors P1 and P2. The system integrates the Intel’s Pentium P54C chip (75 Mhz inter­nal, 25 Mhz external). The chip controls important functions including power management, direct drive bus interface and memory management. The CPU operates at a default clock speed of 75 MHz. It has a 32-bit internal data bus and requires an operating voltage of 3.3 volts.
The chip's floating point unit (FPU) provides an internal math coprocessor. In addition, the microprocessor has an internal on-chip cache controller with 16 KB cache memory. (inter­nal) and 256 KB cache memory (external).
CPU board connectors include the memory card connector (P1), the keyboard connectors (P2 and P3), and the LCD indicator panel connector (P4). For a list of CPU board connec­tor descriptions and an accompanying illustration, see Appendix A.
System Board
The system board (G8SBK) is inside the base unit, under the CPU board. It contains system components including I/O subsystems. The battery charger board connects to the system board via connector P10.
For a list of system board connector descriptions and an accompanying illustration, see Ap­pendix A. System board specifications are listed in Table Section 1-9 at the end of this sec­tion.
Primary Battery
The system uses a nickel metal hydride (NiMH) battery (also called “smart” battery) as its transient power source. The smart battery communicates battery status via the LCD indi­cator (or gas gauge). The battery pack installs in the compartment next to the PCMCIA as­sembly. The battery uses 7.2 volts with a 3800 mAH capacity and weighs 520 grams. The primary battery pack lasts approximately two to three hours, depending on the LCD type.
The primary battery should be discharged every 30 to 45 days using the Discharge utility. To discharge the battery means to drain all of the battery’s power. Sometimes a battery does not last as long if not fully discharged between charges. The discharging process takes several minutes depending on how fully charged the battery was. See Section 2, Setup and Operation, for Discharge utility procedures.
Secondary Battery
An optional secondary battery (same battery type as the primary) can be added in place of the diskette drive. See Section 3, Options, for installing the battery The battery uses 7.2 volts with a 3800 mAH capacity. The smart battery weighs 540 grams.
Technical Information 1-5
CMOS Battery
The lithium battery provides battery backup (3.0 Volts, 280 mAh) to prevent data loss in the system’s complementary metal oxide semiconductor (CMOS) RAM. This memory area contains information on the system’s configuration like date, time, drives, and memory. The CMOS battery lasts approximately two years.
Bridge Battery
The bridge battery saves the memory contents and system status for up to 5 minutes while in Suspend mode. It is situated next to the hard disk drive housing. The AC adapter main­tains voltage in the bridge battery when the system is powered on or off. The bridge battery provides 6 Volts, 50 mAH.
VersaBay PCMCIA Module Option
The VersaBay PCMCIA module adds two more PCMCIA card slots to the system when the user is not using the diskette drive or secondary battery. The module installs in the sys­tem’s diskette drive slot.
Keyboard
The built-in, 83-key keyboard (U.S) or 79-key keyboard (UK and Germany) uses the stan­dard QWERTY format. The keyboard provides 12 function keys and 8 cursor control keys, with an Fn key for ROM-based key functions. The numeric keypad is embedded in the stan­dard key layout.
VersaTrack
The built-in mouse makes it easy to use mouse-driven software such as Windows 3.1. The buttons on either side of the mouse allow the user to select or deselect menu items.
The VersaTrack is the system's default pointing device unless a PS/2 mouse is installed. If an external mouse is installed, then the VersaTrack is deactivated.
1-6 Technical Information
SYSTEM MEMORY
The system board provides 8 MB of standard random access memory (RAM) with 16 KB internal cache, and 256 KB external cache. Base memory is 640 KB and extended memory is 7168 KB (interleaved). The system does not support memory remap.
Optional memory cards with a value of 4-, 8-, 12-, 16-MB or 32-MB can be added to in­crease system memory. Additionally, 256 KB of read-only memory (ROM), 1 x 28F020, enables the system BIOS to be flashed.
The system supports the following RAM configurations using optional memory cards:
n standard RAM plus an optional 4-MB memory card for a total of 12-MB RAM n standard RAM plus an optional 8-MB memory card for a total of 16-MB RAM n standard RAM plus an optional 12-MB memory card for a total of 20-MB RAM n standard RAM plus an optional 16-MB memory card for a total of 24-MB RAM n standard RAM plus an optional 32-MB memory card for a total of 40-MB RAM.
Memory Map
The system supports system and video shadowing, both controlled through complementary metal oxide semiconductor (CMOS). The system supports BIOS as a cacheable area with write protection. Table Section 1-1 lists the system's memory map.
Table Section 1-1 Versa System Memory Map
Memory Space Size Function
000000-09FFFF 640 KB Reserved for System Base Memory 0C0000-0C7FFF 0C8000-0CFFFF 0D0000-0DFFFF 0E0000-0FFFFF E8000h-EFFFFFh 100000h-On-Board
32 KB 32 KB 64 KB 128 KB 64KB 
Mapped to ISA BIOS Mapped to ISA Bus Mapped to PCMCIA Bus Reserved for System BIOS Reserved for System BIOS Reserved for Extended and/or Expanded system
memory
Technical Information 1-7
SYSTEM VIDEO
The system's LCD operates using the Chips and Technologies 65545 VGA Controller. Video signals travel from the controller through the system's 15-pin D-SUB connector us­ing 5 volts.
System video integrates a 32-bit VL-bus interface using local bus video. The system ships with 1 MB Video RAM (VRAM). It also supports video modes up to 1024 x 768 with 256 colors in CRT mode.
Table Section 1-2 lists display modes for both P53S and P53H models.
NOTE: Interlaced video modes are represented with the letter I in the table below.
Table Section 1-2 CRT Display Mode (CRT only)
Mode (Hex)
0, 1 Text 16 40x25 320x200 8x8 70 2, 3 Text 16 80x25 640x200 8x8 70 0*,1* Text 16 40x25 320x350 8x14 70 2, 3 Text 16 80x25 640x350 8x14 70 0**, 1** Text 16 40x25 360x400 9x16 70 2**, 3** Text 16 80x25 720x400 9x16 70 4, 5 Graph 4 40x25 320x200 8x8 70 6 Graph 2 80x25 640x200 8x8 70 7* Text Mono 80x25 720x350 9x14 70 7** Text Mono 80x25 720x400 9x16 70 D Planar 16 40x25 320x200 8x8 70 E Planar 16 80x25 640x200 8x8 70 F Planar Mono 80x25 640x350 8x14 70
Display Mode Colors
Text Display Resolution Font
Refresh Rate
10 Planar 16 80x25 640x350 8x14 70 11 Planar 2 80x30 640x480 8x16 60 12*** Planar 16 80x30 640x480 8x16 74 13 Packed
Pixel
20 4-bit 16 80x30 640x480 8x16 60
256 40x25 320x200 8x8 70
1-8 Technical Information
Table Section 1-2 CRT Display Mode (CRT only)
Mode (Hex)
22 4-bit
24 4-bit
24I 4-bit
30 8-bit
30*** 8-bit
32 8-bit
32# 8-bit
34 8-bit
Display Mode Colors
Linear
Linear
Linear
Linear
Linear
Linear
Linear
Linear
Text Display Resolution Font
16 100x37 800x600 8x16 60
16 128x48 1024x768 8x16 60
16 128x48 1024x768 8x16 43
256 80x30 640x480 8x16 60
256 80x30 640x480 8x16 74
256 100x37 800x600 8x16 60
256 100x37 800x600 8x16 74
256 128x48 1024x768 8x16 60
Refresh Rate
34I 8-bit
Linear
40 15-bit
Linear
41 16-bit
Linear 60 Text 16 132x25 1056x400 8x16 68 61 Text 16 132x50 1056x400 8x16 68 6A, 70 Planar 16 100x37 800x600 8x16 60 6A***
70*** 72, 75 Planar 16 128x48 1024x768 8x16 60 72I, 75I Planar 16 128x48 1024x768 8x16 43 78 Packed
79 Packed
79*** Packed
Planar 16 100x37 800x600 8x16 74
Pixel
Pixel
Pixel
256 128x48 1024x768 8x16 43
32K 80x30 640x480 8x16 60
64K 80x30 640x480 8x16 60
256 80x25 640x400 8x16 70
256 80x30 640x480 8x16 60
256 80x30 640x480 8x16 74
Technical Information 1-9
Table Section 1-2 CRT Display Mode (CRT only)
Mode (Hex)
7C Packed
7C*** Packed
7EI Packed
7E Packed
*EGA Extension
**VGA Extension ***High Refresh Modes
Display
Mode Colors
256 100x37 800x600 8x16 60
Pixel
256 100x37 800x600 8x16 74
Pixel
256 128x48 1024x768 8x16 43
Pixel
256 128x48 1024x768 8x16 60
Pixel
Text Display Resolution Font
Refresh Rate
Table Section 1-3 lists display modes for the P53S model only.
Table Section 1-3 LCD Display Mode (640 x 480 TFT, Simultaneous CRT)
Mode (Hex)
0,1 Text 16 40x25 320x200 8x8 60 2,3 Text 16 80x25 640x200 8x8 60 0*, 1* Text 16 40x25 320x350 8x14 60 2*, 3* Text 16 80x25 640x350 8x14 60 0**, 1** Text 16 40x25 320.x4000 8x16 60 2**, 3** Text 16 80x25 640x400 8x16 60 4, 5 Graph 4 40x25 320x200 8x8 60 6 Graph 2 80x25 640x200 8x8 60 7* Text Mono 80x25 640x350 8x14 60 7** Text Mono 80x25 640x400 8x16 60 D Planar 16 40x25 320x200 8x8 60 E Planar 16 80x25 640x200 8x8 60
F Planar Mono 80x25 640x350 8x14 60 10 Planar 16 80x25 640x350 8x14 60
Display
Mode Colors
Text Display Resolution Font
Refresh Rate
1-10 Technical Information
Table Section 1-3 LCD Display Mode (640 x 480 TFT, Simultaneous CRT)
Mode (Hex)
11 Planar 2 80x30 640x480 8x16 60 12 Planar 16 80x30 640x480 8x16 60 13 Packed
20 4-bit
30 8-bit
40 15-bit
41 16-bit
78 Packed
79 Packed
Display
Mode Colors
256 40x25 320x200 8x8 60
Pixel
16 80x30 640x480 8x16 60
Linear
256 80x30 640x480 8x16 60
Linear
32K 80x30 640x480 8x16 60
Linear
64K 80x30 540x480 8x16 60
Linear
256 80x25 640x400 8x16 60
Pixel
256 80x30 640x480 8x16 60
Pixel
Text Display Resolution Font
Refresh Rate
*EGA Extension
**VGA Extension
Table Section 1-4 lists display modes for the P53H model only.
Table Section 1-4 LCD Display Mode (640 x 480 STN-D/S, Simultaneous CRT
Display)
Mode (Hex)
0, 1 Text 16 40x25 320x200 8x8 60 2, 3 Text 16 80x25 640x200 8x8 60 0*, 1* Text 16 40x25 320x350 8x14 60 2*, 3* Text 16 80x25 640x350 8x14 60 0**, 1** Text 16 40x25 320x400 8x16 60
2**, 3** Text 16 80x25 640x400 8x16 60 4,5 Graph 4 40x25 320x200 8x8 60
Display Mode Colors
Text Display Resolution Font
Refesh Rate
6 Graph 2 80x25 640x200 8x8 60
Technical Information 1-11
Table Section 1-4 LCD Display Mode (640 x 480 STN-D/S, Simultaneous CRT
Display)
Mode (Hex)
7* Text Mono 80x25 640x350 8x14 60 7** Text Mono 80x25 640x400 8x16 60 D Planar 16 40x25 320x200 8x8 60 E Planar 16 80x25 640x200 8x8 60 F Planar Mono 80x25 640x350 8x14 60 10 Planar 16 80x25 640x350 8x14 60 11 Planar 2 80x30 640x480 8x16 60 12 Planar 16 80x30 640x480 8x16 60 13 Packed
20 4-bit
30 8-bit
78 Packed
Display Mode Colors
256 40x25 320x200 8x8 60
Pixel
16 80x30 640x480 8x16 60
Linear
256 80x30 640x480 8x16 60
Linear
256 80x25 640x400 8x16 60
Pixel
Text Display Resolution Font
Refesh Rate
79 Packed
Pixel
*EGA Extension
**VGA Extension
256 80x30 640x480 8x16 60
Table Section 1-5 lists display modes for the P53H model only.
Table Section 1-5 LCD Display Mode (800x600 TFT, Simultaneous CRT Display)
Mode (Hex)
0,1 Text 16 40x25 320x200 8x8 60 2,3 Text 16 80x25 640x200 8x8 60
0*, 1* Text 16 40x25 320x350 8x14 60 2*, 3* Text 16 80x25 640x350 8x14 60 0**, 1** Text 16 40x25 360x400 9x16 60
Display Mode
Color
Text Display Resolution Font
Refresh Rate (Hz)
1-12 Technical Information
Table Section 1-5 LCD Display Mode (800x600 TFT, Simultaneous CRT Display)
Mode (Hex)
2**,3** Text 16 80x25 720x400 9x16 60
4,5 Graph 4 40x25 320x200 8x8 60 6 Graph 2 80x25 640x200 8x8 60 7* Text Mono 80x25 720x350 9x14 60 7** Text Mono 80x25 720x400 9x16 60 D Planar 16 40x25 320x200 8x8 60 E Planar 16 80x25 640x200 8x8 60 F Planar Mono 80x25 640x350 8x14 60 10 Planar 16 80x25 640x350 8x14 60 11 Planar 2 80x30 640x480 8x16 60 12 Planar 16 80x30 640x480 8x16 60 13 Packed
20 4-bit
Display Mode
Pixel
Linear
Color
256 40x25 320x200 8x8 60
16 80x30 640x480 8x16 60
Text Display Resolution Font
Refresh Rate (Hz)
22 4-bit
Linear
30 8-bit
Linear
32 8-bit
Linear 6A, 70 Planar 16 100x37 800x600 8x16 60 78 Packed
Pixel 79 Packed
Pixel 7C Packed
Pixel
*EGA Extension
**VGA Extension
16 100x37 800x600 8x16 60
256 80x30 640x480 8x16 60
256 100x37 800x600 8x16 60
256 80x25 640x400 8x16 60
256 80x30 640x480 8x16 60
256 100x37 800x600 8x16 60
Technical Information 1-13
PARALLEL INTERFACE
The system's parallel interface integrates National’s PC87332VLJ chip. It uses a 25-pin D­subconnector that is Enhanced Capabilities Port (ECP) equipped. The port is located on the system's rear panel.
The user selects between three parallel interface modes using Auto Setup. These include unidirectional, bidirectional or enhanced. Unidirectional mode sends data output from the standard ISA port only. Bidirectional mode sends data using the standard ISA port or PS/2 technology. Enhanced mode enables high speed data transmission to occur using either the unidirectional or bidirectional modes.
The parallel port address is 378h and the interrupt level is IRQ07. Pin locations for the par­allel interface are listed in Appendix A.
SERIAL INTERFACE
The RS-232C serial port is a 9-pin connector on the system’s rear panel. The serial port consists of a 16550 compatible serial port controller with a programmable baud rate within 50/56000 bps. The serial port connects an RS-232C device or an external modem. The se­rial port address is 3F8h and the interrupt level is IRQ04.
VERSA P SERIES CHIP SET
Refer to Table Section 1-6 for a quick summary of the chip types used in the system. See the Abbreviations section at the beginning of this manual for a translation of chip technolo­gies.
Table Section 1-6 Versa P Series Chip Types and Technologies
Chip Manufacturer Description Technology
P54C Intel 75 MHz CPU 320-pin TCP PT86C868/
PT86C718 N28F020-150 Intel 256k x 8 Flash ROM 32-pin PLCC PT86C718 Pico Power IDE Interface, Peripheral
C&T65545 Chips &
PC87334VJG National
Pico Power System Logic 144-pin TQFP/
176-pin TQFP
176-pin TQFP Controller, Interrupt Multiplexer
VGA Controller 208-pin QFP
Technologies
Semiconductor
Diskette Controller, IDE, Parallel Interface
100-pin TQFP
M38802M2-001HP Mitsubishi Keyboard Controller CL-PD6720-B-2 Cirrus Logic PCMCIA Controller 208-pin QFP
64-pin TQFP
1-14 Technical Information
ES688S ESS Technology Audio Controller 100-pin SQFP
System Logic
The PT86C868/PT86C718 Pico Power chips each consist of a 144-pin plastic quad flat­package. This two-chip controller supports fast graphics and I/O processing. The system logic controller adds the following features:
n built-in level 2 cache controller n integrated active power management n integrated battery management n high performance DRAM controller.
Flash ROM
The N28F020 flash ROM is a 32-pin, plastic lead chip carrier (PLCC). The chip allows easy updates to the system's BIOS if needed. More specifically, the ROM is flashed electroni­cally, installing the latest BIOS revisions to the system. It is possible to reprogram the BIOS up to 100,000 times. See Section 2, Setup and Operation, for BIOS update procedures.
The N28F020 provides the system upgrade capability as well as the following:
n 2048-kilobit (kb) memory n Quick-Pulse Programming Algorithm n 150 nanoseconds (ns) maximum access time n ETOX Nonvolatile flash technology n CMOS low power consumption n low noise feature.
ROM BIOS
The system uses a Flash ROM known as the system's ROM BIOS to store machine lan­guage programs. The BIOS size is 256 KB, which consists of 96 KB system utility (PCMCIA, Auto Setup), 64 KB system BIOS, 32 KB video BIOS, 32 KB power manage­ment and 32 KB reserved.
The BIOS programs execute the power-on self-test (POST), initialize CPU controllers, and interact with the LCD indicator panel, diskette drive, hard drive, communication devices and peripherals. The system BIOS also contains Auto Setup and provides VGA controller support. The ROM BIOS is copied into RAM (shadowing) for optimum performance.
The ROM BIOS contains both the system and video BIOS. The system BIOS is located in the upper portion of the device, video BIOS is located in the lower portion. System BIOS is located between F000h-FFFFh.
Technical Information 1-15
The BIOS often changes after the product release to provide enhanced features or bug fixes. To acquire the latest BIOS release, the ROM is flashed electronically allowing the BIOS update to occur without removing the ROM. See Section 2, Setup and Operation, for BIOS upgrade procedures.
Peripheral Controller
The PT86C718A chip controls the Peripheral Controller, IDE Interface, and Interrupt Mul­tiplexer. The chip integrates performance and power-saving features while providing the following:
n 8-level 64-bit write buffer to VL bus n interrupt multiplexing logic n reset logic.
VGA Controller
The video architecture is maintained using the C&T65545 Controller and support logic. The controller supports video standards including EGA and CGA.
This powerful circuitry provides the following features for the system via the controller and LCD:
n 1-MB VRAM n true-color and high-color display capability with 640 x 480 or 800 x 600 resolu-
tion
n supports LCD resolutions up to 1024 x 768 n hardware Bit Block Transfers (BITBLT) n programmable power management n simultaneous LCD/CRT display in 640 x 480 VGA display mode n 256 color display n power management support.
Video Controller Architecture
The video controller architecture is broken down into several modules. The five significant modules include the sequencer, CRT controller, graphics controller, attribute controller and dithering engine.
For example, the sequencer manages CPU and display memory timing. The CRT controller controls sync and timing signals. The graphics controller permits the flow of communication between the CPU data bus and the 32-bit internal data bus. The attribute controller pro­duces a 4-bit wide video data stream that refreshes the display.
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