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Lenovo ThinkPad 770 Technical Reference Manual for the ThinkPad 770 - Page 144

bytes, RT/CMOS RAM, Pentium 200 / 233 MHz

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Page 144 highlights

F fault, overvoltage 1-11 G gate A20 2-30 H hard disk drive connector 2-8 hard disk password 2-32 hardware compatibility 2-34 heat output, specifications 1-8 height, system unit 1-8 humidity, specifications 1-8 I identifier, model 1-2 infrared subsystem 3-9 interrupt controller 1-4 IR subsystem 3-9 display 3-9 J joystick/MIDI port 3-14 K key number 2-5 key numbers for the 84-key keyboard 2-5 key numbers for the 85-key keyboard 2-6 key numbers for the external numeric keypad 2-7 keyboard connector 2-4 signals 2-4 keyboard ID 2-6 keyboard/auxiliary device controller 1-4 keyboard/mouse connector 2-4 L LCD (liquid crystal display) 3-2 liquid crystal display (LCD) 3-2 lithium-ion (Li-ion) battery pack, power supply 1-11 low and high base memory bytes, RT/CMOS RAM configuration 2-28 low and high expansion memory bytes, RT/CMOS RAM configuration 2-28 low and high usable memory bytes, RT/CMOS RAM configuration 2-28 M maximum altitude, specifications 1-8 measurements, system unit 1-8 memory RAM 2-16 ROM 2-16 RT/CMOS 2-19 system memory map 2-17 microprocessor 1-3 cache memory operation 2-2 Pentium 200 / 233 MHz 2-2 specifications 1-3, 1-7 MIDI/joystick port 3-14 mode switch, protected 2-30 model identifier 1-2 model/submodel bytes 1-2 modem subsystem 1-4, 3-5 display 3-5 mouse connector 2-4 signals 2-4 N NMI (nonmaskable interrupt) 2-29 nonmaskable interrupt (NMI) 2-29 X-2 Index

Section	Page
Preface	9
Section 1. System Overview	11
Description	12
System Board Devices and Features	13
System Board I/O Address Map	15
Specifications	17
Performance Specifications	17
Physical Specifications	18
Electrical Specifications	19
Acoustical Readings	19
Power Supply	20
Voltages	20
Output Protection	21
Voltage Sequencing	21
Power Supply Connector	21
Battery Pack	21
Section 2. System Board	23
Description	24
Microprocessor	24
Cache Memory Operation	24
Cacheable Address Space	25
Bus Adapter	25
Keyboard/Mouse Connector	26
Signals	26
Connector	26
Scan Codes	27
Hard Disk Drive Connector	30
External Bus Connector	31
UltraBay II Connector	34
Diskette Drive and Controller	37
Memory	38
ROM Subsystem	38
RAM Subsystem	38
System Memory Map	39
System Board Memory for the DIMM Connectors	40
RT/CMOS RAM	41
RT/CMOS Address and NMI Mask Register (Hex 0070)	42
RT/CMOS Data Register (Hex 0071)	42
RT/CMOS RAM I/O Operations	43
CMOS RAM Configuration	47
Miscellaneous System Functions and Ports	51
Nonmaskable Interrupt (NMI)	51
System Control Port A (Hex 0092)	52
System Control Port B (Hex 0061)	53
Power-On Password	54
Other Passwords	54
Selectable Drive-Startup Sequence	55
Hardware Compatibility	56
Error Codes	57
Section 3. Subsystems	59
Video Subsystem	60
Video Modes	61
Modem Subsystem	63
ThinkPad Modem	63
MIDI Port Function	63
Sound Blaster Support Function	63
Telephony (Modem) Function	64
Audio Subsystem	65
MIDI Port Function	65
Sound Blaster Support Function	65
Audio Port Specifications	66
Infrared (IR) Subsystem	67
IRQ Level and DMA Channel	67
Enhanced Video Subsystem	68
Video Port Specification	68
PCMCIA Subsystem	69
Pin Assignments	70
IDE Channel on the UltraBay II	72
MIDI/Joystick Port	72
MIDI Interface	72
Joystick Interface	72
Appendix A. System Resources	73
Appendix B. System Management API (SMAPI) BIOS Overview	77
Overview	79
Header Image	80
Calling Convention	82
Parameter Structure	82
Sample in Assembler Language	84
Sample in C Language	85
Calling Convention Pseudo Code	86
Return Codes	87
Function Description	88
System Information Service	88
Get System Identification	88
Get CPU Information	89
Get Display Device Information	90
Get Docking Station Information	91
Get UltraBay II Information	92
Get Slave Micro Control Unit Information	93
Get System Sensor Status	94
Get Video Information	95
Get Refresh Rate Capability	96
System Configuration Service	98
Get Display Device State	98
Set Display Device State	100
Get Pointing Device State	101
Set Pointing Device State	102
Get Hotkey Sticky/Lock	103
Set Hotkey Sticky/Lock	104
Power Management Service	105
Get Power Management Mode	105
Set Power Management Mode	106
Set Timer Control	109
Event Bit Definition	110
Get System Event Global Condition	111
Set System Event Global Condition	112
Get System Event 1 Condition	113
Set System Event 1 Condition	114
Get System Event 2 Condition	115
Set System Event 2 Condition	116
Get System Timer	117
Set System Timer	118
Get Hibernation Timer	119
Set Hibernation Timer	120
Get System Event 3 Condition	121
Set System Event 3 Condition	122
Get System Resume Condition	123
Set System Resume Condition	124
Get System Resume Timer	125
Set System Resume Timer	126
Request System Standby	127
Request System Hibernation	128
Samples	129
Data Structure	129
Function Declaration	133
Installation Check	134
BIOS Call	138

Match case Limit results 1 per page

fault, overvoltage

1-11

gate A20

2-30

hard disk drive connector

2-8

hard disk password

2-32

hardware compatibility

2-34

heat output, specifications

1-8

height, system unit

1-8

humidity, specifications

1-8

identifier, model

1-2

infrared subsystem

3-9

interrupt controller

1-4

IR subsystem

3-9

display

3-9

joystick/MIDI port

3-14

key number

2-5

key numbers for the 84-key

keyboard

2-5

key numbers for the 85-key

keyboard

2-6

key numbers for the external

numeric keypad

2-7

keyboard

connector

2-4

signals

2-4

keyboard ID

2-6

keyboard/auxiliary device

controller

1-4

keyboard/mouse connector

2-4

LCD (liquid crystal display)

3-2

liquid crystal display (LCD)

3-2

lithium-ion (Li-ion) battery pack,

power supply

1-11

low and high base memory bytes,

RT/CMOS RAM

configuration

2-28

low and high expansion memory

bytes, RT/CMOS RAM

configuration

2-28

low and high usable memory bytes,

RT/CMOS RAM

configuration

2-28

maximum altitude,

specifications

1-8

measurements, system unit

1-8

memory

RAM

2-16

ROM

2-16

RT/CMOS

2-19

system memory map

2-17

microprocessor

1-3

cache memory operation

2-2

Pentium 200 / 233 MHz

2-2

specifications

1-3, 1-7

MIDI/joystick port

3-14

mode switch, protected

2-30

model identifier

1-2

model/submodel bytes

1-2

modem subsystem

1-4, 3-5

display

3-5

mouse

connector

2-4

signals

2-4

NMI (nonmaskable interrupt)

2-29

nonmaskable interrupt (NMI)

2-29

X-2

Index