IBM 600 SMAPI BIOS B-21

Return Code - Error status

Auxiliary Return Code - Reserved

Parameter 1 - Reserved

Parameter 2 - Refresh rate capability for

specified mode:

Bit - 6 Hz available

Bit 1 - 72Hz available

Bit 2 - 75Hz available

Bit 3 - 43Hz(I) available

Bit 4 - 56Hz available

Bit 5 - 7 Hz available

Bit 6 - 85Hz available

Bit 7 - 48Hz(I) available

Bits 8-15 : Reserved (must be B' ')

Parameter 3 - Reserved

Parameter 4 - Reserved

Parameter 5 - Reserved

SMAPI BIOS B-21

Contents

Main First Edition (April 1998) 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 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 Output Protection Voltage Sequencing Power Supply Connector 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 Keyboard ID 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 2-7. Hard Disk Drive Connector Pin Assignments External Bus Connector Figure 2-8 (Part 1 of 2). 240-Pin External Bus Connector Pin Assignments System Board 2-9 Figure 2-8 (Part 2 of 2). 240-Pin External Bus Connector Pin Assignments 2-10 System Board Page Figure 2-9 (Part 1 of 2). UltraSlim Bay Connector Pin Assignments 2-12 System Board Figure 2-9 (Part 2 of 2). UltraSlim Bay Connector Pin Assignments System Board 2-13 Diskette Drive and Controller Memory ROM Subsystem RAM Subsystem System Memory Map x System Board Memory for the DIMM Connectors System Board 2-17 Figure 2-12. 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 2-34 System Board Figure 2-34 (Part 1 of 2). Error Codes Figure 2-34 (Part 2 of 2). Error Codes System Board 2-35 Page 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 ModesNeoMagic NM2160 3-4 Subsystems Modem Subsystem ThinkPad Modem MIDI Port Function Sound Blaster Support Function Telephony (Modem) Function Audio Subsystem MIDI Port Function Sound Blaster Support Function Audio Port Specifications Infrared (IR) Subsystem IRQ Level and DMA Channel PC Card Subsystem Pin Assignments Figure 3-3 shows the pin assignments for the PCMCIA slots. 3-10 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 UltraSlim Bay MIDI/Joystick Port MIDI Interface Page Page Appendix A. System Resources A-2 A-3 Page 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. Appendix C Page Index A B C D E G H X-2 I J O P X-3 R S X-4 T U X-5 V W