Information Word, Real Mode Entry Point, SMAPI BIOS B-5 | IBM 770

Information Word

This area identifies the following BIOS service level:

Information Word

Bit ð : Real/V86 mode interface support

Bit 1 : 16-bit protected mode support

Bit 2 : 32-bit protected mode support

Bit 3-15 : Reserved

Real Mode Entry Point

The entry point is specified in segment, offset format. Clients using Real/V86 mode can use this area for the far-call value.

16-Bit or 32-Bit Protected	Mode	Entry	Point
The code base code address specifies the physical
address for		this BIOS, and the client must prepare the
selector	for	this	BIOS. The length should be 64 KB.

SMAPI BIOS B-5

Image 81

IBM 770 manual Information Word, Real Mode Entry Point, Bit or 32-Bit Protected, SMAPI BIOS B-5

Contents

05L1739 S05L-1739-00 Edition First System Overview Contents Appendix A Section 3. SubsystemsSystem Resources Appendix B. System Management API SMAPI Management IndexPage Supply FiguresMaximum Assignments viii Preface x Preface Section 1. System Overview Description computer1-2 System Overview IBM Personal System/2 Hardware Interface Technical Reference System Board Devices and Featuresboard devices and their features. The lists the Figure 1-2 Part 2 of 2. System Board Devices and Features 1-4 System Overview Figure 1-3 is the I/O address map System Board I/O Address Map 1-6 System Overview AddressDevice Specifications Performance Specifications1-4. Performance Specifications 1-8 System Overview Physical Specifications Electrical Specifications 1-6. Electrical Specifications1-7. Acoustical Readings Power Supply Voltages1-10 System Overview Battery Pack Power Supply ConnectorOutput Protection Voltage Sequencing Figure 1-10. Lithium-ion Battery Pack Specifications 1-12 System Overview Section 2. System Board Microprocessor Cache Memory OperationSystem Board Address Bus Adapter Signals Keyboard/Mouse ConnectorConnector 2-4 System Board Hardware Scan CodesInterface Technical 2-6 System Board Keyboard ID Displayable Characters and Symbols 2-8 System Board Hard Disk Drive Connector External 2-10 System Board Signal NameType Signal Name 2-12 System Board UltraBay Signal FeatureI/O and 2-14 System Board 2-9. Diskette Drive Diskette Drive and ControllerRead Write ROM Subsystem MemoryRAM Subsystem 2-16 System Board System Memory Map 2-18 System Board System Board Memory for the DIMM Connectors Address RT/CMOS RAM Bits NMI Mask Register Hex0071 2-20 System Board RAM I/O OperationsRT/CMOS Real-Time 2-22 System BoardClock 000-00D Status BitFunction 2-24 System Board Figure 2-20. Diagnostic CMOS RAM ConfigurationByte Hex 00E Status Byte Diskette Drive Type Byte Hex 010 This byte indicates the type 2-26 System BoardHard Disk Figure 2-28. Installed Diskette Drive Bits Bits 5Disk Drive Type Figure 2-26. Hard Disk Drive Type Byte Expansion 2-28 System BoardMemory Bytes Date-Century Nonmaskable Interrupt NMI Miscellaneous System Functions and Ports System Control Port A Hex0092 2-30 System Board System System/2 and Personal Computer BIOS Interface0061 System Power-On Password Other Passwords2-32 System Board Selectable Drive-Startup Sequence 2-34 System Board Hardware Compatibility Figure 2-33 Part 1 of 2. Error Codes Error Codes Figure 2-33 Part 2 of 2. Error Codes 2-36 System Board Section 3. Subsystems Video Subsystem Note Use3-2 Subsystems Alpha Figure3-1Buffer Expanded Modes-Trident BIOSVESA Mode Monitor ThinkPad Modem Modem SubsystemMIDI Port Function Sound Blaster Support Function 3-6 Subsystems Telephony Modem Function Audio Subsystem I/O AddressMPC-2 Audio Port Specifications Line3-8 Subsystems DMA Channel Infrared IR Subsystem Video Port Specification Enhanced Video Subsystem3-10 Subsystems PCMCIA Subsystem same2 Manufactured by Texas Instruments corporation 3-12 Subsystems Pin Assignments Ground PCMCIA PC Card Slot Pin Assignments MIDI/Joystick Port IDE Channel on the UltraBayMIDI Interface Joystick Interface Appendix A. System Resources Page Resource Page Appendix B. System Management API SMAPI BIOS Overview B-2 SMAPI BIOS Power Management System ConfigurationSMAPI BIOS B-3 Overview Image B-4 SMAPI BIOS Information Word SMAPI BIOS B-5Real Mode Entry Point 16-Bit or 32-Bit Protected B-6 SMAPI BIOS Calling ConventionParameter Structure Output Field SMAPI BIOS B-7 Sample in Assembler Language B-8 SMAPI BIOS Sample in C Language SMAPI BIOS B-9 B-10 Calling Convention Pseudo Code Return Codes SMAPI BIOS B-11 B-12 ServiceFunction Description Get System Identification Get CPU Information SMAPI BIOS B-13 Information B-14Get Display Device Get Docking Station SMAPI BIOS B-15 Get UltraBay B-16Information SMAPI BIOS B-17 Control Unit InformationGet Slave Micro Get System Sensor B-18 Get Video Information SMAPI BIOS B-19 Capability B-20Get Refresh Rate SMAPI BIOS B-21 B-22 System Configuration Service SMAPI BIOS B-23 B-24 Set Display Device State Get Pointing Device SMAPI BIOS B-25 Set Pointing Device B-26 Get Hotkey SMAPI BIOS B-27 Set Hotkey Sticky/Lock B-28 SMAPI BIOS B-29 PowerService Set Power Management B-30 SMAPI BIOS B-31 Get Timer Control B-32 SMAPI BIOS B-33 Set Timer Control B-34 Event Bit Definition SMAPI BIOS B-35 ConditionGet System Event Global B-36 Set System Event Global Condition SMAPI BIOS B-37 Get System Event1 Condition Set System Event 1 ConditionB-38 2 Condition SMAPI BIOS B-39 B-40 SMAPI BIOS B-41 Get System Timer B-42 Set System Timer Get Hibernation SMAPI BIOS B-43 B-44 Set Hibernation Timer 3 Condition SMAPI BIOS B-45 B-46 Get System Resume SMAPI BIOS B-47 Set System Resume B-48 SMAPI BIOS B-49 B-50 Standby SMAPI BIOS B-51 Hibernation B-52 SMAPI BIOS B-53 SamplesData Structure B-54 Parameters SMBHDRRSEGMENT SMAPI BIOS B-55SMBHDRP16OFFSET SMBHDRP32OFFSET B-56 Function Declaration SMAPI BIOS B-57 B-58 Installation Check SMAPI BIOS B-59 B-60 MyPtr SMAPI BIOS B-61 B-62 BIOS Call 32-Bit Protected Mode SMAPI BIOS B-63 MyInput.SMBINSUBFUNC B-64 Appendix C. Notices C-2 Notices Trademarks Index X-2 Index Index X-4 Index devicescontinued boardcontinued Part Number 05L1739 Printed in the United States of America