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IBM
770 manual
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Contents
Main
First Edition (December 1997)
Contents
Page
Page
Page
Figures
Page
Preface
Reserved
Page
Section 1. System Overview
Description
computer
ThinkPad computer
IBM Personal System/2 and Personal Computer BIOS Interface
System Board Devices and Features
Figure 1-2 lists the system board devices and their features. The
System Overview 1-3
Figure 1-2 (Part 1 of 2). System Board Devices and Features
IBM Personal System/2 Hardware Interface Technical Reference
1-4 System Overview
System Board I/O Address Map
Figure 1-3 is the I/O address map.
System Overview 1-5
Figure 1-3 (Part 1 of 2). System Board I/O Address Map
Figure 1-3 (Part 2 of 2). System Board I/O Address Map
1-6 System Overview
Specifications
System Overview 1-7
Figure 1-4. Performance Specifications
Figure 1-4 to Figure 1-7 on page 1-9 list the specifications for the computers.
Physical Specifications
Figure 1-5. Physical Specifications
1-8 System Overview
Electrical Specifications
Figure 1-6. Electrical Specifications
System Overview 1-9
Figure 1-7. Acoustical Readings
Acoustical Readings
Power Supply
Voltages
Page
Page
Section 2. System Board
Description
cache line
Microprocessor
Cache Memory Operation
Cacheable Address Space
code read operations only
Bus Adapter
Keyboard/Mouse Connector
Signals
Connector
Scan Codes
Page
IBM Personal System/2 Hardware Interface Technical Reference
Displayable Characters and Symbols
IBM Personal System/2 Hardware Interface Technical Reference
Hard Disk Drive Connector
2-8 System Board
Figure 2-6. Hard Disk Drive Connector Pin Assignments
External Bus Connector
2-10 System Board
Figure 2-7. 240-Pin External Bus Connector Pin Assignments
System Board 2-11
Page
Figure 2-8 (Part 1 of 2). UltraBay II Connector Pin Assignments
System Board 2-13
Figure 2-8 (Part 2 of 2). UltraBay II Connector Pin Assignments
2-14 System Board
Diskette Drive and Controller
Memory
ROM Subsystem
RAM Subsystem
System Memory Map
x
System Board Memory for the DIMM Connectors
2-18 System Board
Figure 2-11. DIMM Adapter Card Memory Connector Pin Assignments
RT/CMOS RAM
Page
Page
Real-Time Clock Bytes (Hex 00000D):
Status Register A (Hex 00A)
Status Register B (Hex 00B)
Status Register C (Hex 00C)
Status Register D (Hex 00D)
Diagnostic Status Byte (Hex 00E)
Shutdown Status Byte (Hex 00F):
Diskette Drive Type Byte (Hex 010):
Hard Disk Drive Type Byte (Hex 011):
Hard Disk Drive Type Byte (Hex 012):
Reserved Bytes (Hex 013):
Equipment Byte (Hex 014):
Page
Miscellaneous System Functions and Ports
Nonmaskable Interrupt (NMI)
System Control Port A (Hex 0092)
IBM Personal System/2 and Personal Computer BIOS Interface
System Control Port B (Hex 0061)
Power-On Password
Easy-Setup
IBM Personal System/2 Hardware Interface Technical Reference
Other Passwords
ThinkPad User's Guide
Selectable Drive-Startup Sequence
ThinkPad User's Guide
drive-startup sequence
Hardware Compatibility
Error Codes
System Board 2-35
X
XX
2-36 System Board
Section 3. Subsystems
Video Subsystem
Video Modes
The video subsystem supports the modes listed in Figure 3-1 and Figure 3-2 on page 3-4:
Subsystems 3-3
Figure 3-1. BIOS Video VGA Modes
Figure 3-2. Video BIOS Extended ModesTrident 9397
3-4 Subsystems
Modem Subsystem
ThinkPad Modem
MIDI Port Function
Sound Blaster Support Function
Telephony (Modem) Function
The telephony (modem) function provides the following settings:
3-6 Subsystems
Audio Subsystem
MIDI Port Function
Sound Blaster Support Function
Audio Port Specifications
Infrared (IR) Subsystem
IRQ Level and DMA Channel
Enhanced Video Subsystem
Video Port Specification
PCMCIA Subsystem
Pin Assignments
Figure 3-3 shows the pin assignments for the PCMCIA slots.
3-12 Subsystems
Figure 3-3 (Part 1 of 2). PCMCIA PC Card Slot Pin Assignments
Figure 3-3 (Part 2 of 2). PCMCIA PC Card Slot Pin Assignments
IDE Channel on the UltraBay II
MIDI/Joystick Port
MIDI Interface
Joystick Interface
Appendix A. System Resources
A-2
A-3
A-4
Appendix B. System Management API (SMAPI) BIOS Overview
Page
Overview
Header Image
Page
Calling Convention
Parameter Structure
SMAPI BIOS B-7
Page
Page
Calling Convention Pseudo Code
Assembler Language
C Language
Return Codes
Function Description System Information Service
Page
Page
Page
Page
Page
Page
Page
Get Refresh Rate Capability
B-20 SMAPI BIOS
SMAPI BIOS B-21
System Configuration Service
Get Display Device State
B-22 SMAPI BIOS
SMAPI BIOS B-23
Page
Page
Page
Page
Page
Power Management Service
Page
Page
Page
Page
Event Bit Definition
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Page
Samples
Data Structure
SMAPI BIOS B-53
Assembler Language
Page
SMAPI BIOS B-55
Page
Page
Installation Check
Assembler Language:
Page
Page
Page
BIOS Call
Assembler Language:
Page
Page
Appendix C. Notices
Trademarks
Index
A
B
C
D
E
F
G
X-2 Index
H
I
O
P
Index X-3
R
S
X-4 Index
T
U
Index X-5
V
W