Instruction/ maintenance manual of the product 770 IBM
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05L1739 S05L-1739-00.
Note Before using this information and the product it supports, be sure to read the general information under Appendix C, “Notices” on page C-1. First Edition (December 1997) The following paragra.
Contents Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . vii Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix Section 1. System Overview . . . . . . . . . . . . . . . . . . . 1-1 Description . . . .
RT/CMOS RAM . . . . . . . . . . . . . . . . . . . . . . . . . 2-19 Miscellaneous System Functions and Ports .......... 2-29 Nonmaskable Interrupt (NMI) ................. 2-29 System Control Port A (Hex 0092) .............. 2-30 System Control Port B (Hex 0061) .
System Information Service .................. B-12 System Configuration Service ................. B-22 Power Management Service .................. B-29 Event Bit Definition ....................... B-34 Samples . . . . . . . . . . . . . . . . . . . . .
vi.
Figures 1-1. Model and Submodel Bytes ............... 1-2 1-2. System Board Devices and Features .......... 1-3 1-3. System Board I/O Address Map ............. 1-5 1-4. Performance Specifications . . . . . . . . . . . . . . . . 1-7 1-5. Physical Specifications .
2-30. System Control Port A (Hex 0092) .......... 2-30 2-31. System Control Port B (Hex 0061, Write) ...... 2-31 2-32. System Control Port B (Hex 0061, Read) ...... 2-31 2-33. Error Codes . . . . . . . . . . . . . . . . . . . . . . . . 2-35 3-1. BIOS Video VGA Modes .
Preface This technical reference contains hardware and software interface information specific to the IBM ThinkPad 770 computer. This technical reference is intended for those who develop hardware and software products for the computer. Users should understand computer architecture and programming concepts.
x Preface.
Section 1. System Overview Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2 System Board Devices and Features ............... 1-3 System Board I/O Address Map .................. 1-5 Specifications . . . . . . . . . . . . . .
Description The IBM ThinkPad 770 computer (hereafter called the ThinkPad computer or the computer ) is notebook-size computer that feature the AT bus architecture. Each computer supports one UltraBay II and one internal hard disk drive. The ThinkPad 770 computer also supports an internal CD-ROM drive or an internal DVD drive as an option.
System Board Devices and Features Figure 1-2 lists the system board devices and their features. The IBM Personal System/2 Hardware Interface Technical Reference describes devices common to PS/2 products by type number.
Figure 1-2 (Part 2 of 2). System Board Devices and Features Device Type Features Interrupt controller 1 15 levels of system interrupts (interrupts are edge-triggered) Keyboard/auxiliary device controller 1 Internal keyboard TrackPoint Auxiliary device connector Password security Diskette drive controller 2 Supports: 3.
System Board I/O Address Map Figure 1-3 is the I/O address map. Figure 1-3 (Part 1 of 2). System Board I/O Address Map Address (Hex) Device 0000–001F DMA Controller (0–3) 0020, 0021 Interrupt Cont.
Figure 1-3 (Part 2 of 2). System Board I/O Address Map Address (Hex) Device 0330–0333 MIDI Port 4 0350–035F ThinkPad Modem 0376, 0377 Secondary IDE Registers 0378–037A Parallel Port 2 037B–037.
Specifications Figure 1-4 to Figure 1-7 on page 1-9 list the specifications for the computers. Performance Specifications Figure 1-4. Performance Specifications Device/Cycle Clock Counts (66 MHz) Micr.
Physical Specifications Figure 1-5. Physical Specifications Size Width: 313.0 mm (12.3 in.) Depth: 240.0 / 254.0 mm (9.45 / 10.00 in.) Height: 56.0 mm (2.20 in.) Weight ñ (approximate value) 3.4 kg (7.4 lb) 3.5 kg (7.7 lb) Air Temperature System on (without diskette) 5.
Electrical Specifications Figure 1-6. Electrical Specifications (56 W) Input voltage ñ (V ac) 100–240 Frequency (Hz) 50/60 Input ò (kVA) 0.13 ñ Range is automatically selected; sine wave input is required. ò At maximum configuration. Acoustical Readings Figure 1-7.
Power Supply The power supply converts the ac voltage to dc voltage and provides power for the following: System board set Diskette drive Hard disk drive CD-ROM drive Auxiliary dev.
Output Protection A short circuit placed on any dc output (between two outputs or between an output and a dc return) latches all dc outputs into a shutdown state, with no hazardous condition to the power supply.
Figure 1-10. Lithium-ion Battery Pack Specifications Nominal Voltage + 10.8 V dc Capacity (average) 4.5 ampere hours (AH) Protection Overcurrent protection Overvoltage protection Overdischarge protect.
Section 2. System Board Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Microprocessor . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-2 Cache Memory Operation .................... 2-2 Cacheable Address Space ....
Description This section describes the microprocessor, connectors, memory subsystems, and miscellaneous system functions and ports for the ThinkPad computers. Microprocessor The ThinkPad 770 uses the Intel Pentium 200 or 233 MHz processor with the MMX technology.
and read operations. If memory data is written to a location in the cache and the cache line is in the “modified” state, the corresponding cache line is written back to system memory and invalidated. When the microprocessor performs a memory read, the data address is used to find the data in the cache.
Keyboard/Mouse Connector Each ThinkPad computer has a keyboard/mouse connector, where the IBM mouse, keyboard, or numeric keypad is connected. Signals The keyboard and mouse signals are driven by open-collector drivers pulled to 5 V dc through a pull-up resistor.
Scan Codes Figure 2-3 shows the key numbers assigned to keys on the 84-key keyboard (for the U.S. and Japan). Figure 2-4 on page 2-6 shows the key numbers assigned to keys on the 85-key keyboard (for countries other than the U.
Figure 2-4. Key Numbers for the 85-Key Keyboard Keyboard ID The keyboard ID consists of 2 bytes: hex 83AB (the built-in keyboard with the external numeric keypad) or hex 84AB (the built-in keyboard only). Interrupt 16H, function code (AH)=0AH, returns the keyboard ID.
Figure 2-5 shows the key numbers assigned to keys on the external numeric keypad. For scan codes assigned to each numbered key, refer to the IBM Personal System/2 Hardware Interface Technical Reference . 90 95 96 97 98 99 100 101 102 103 104 108 105 106 91 92 93 Figure 2-5.
Hard Disk Drive Connector The hard disk drive connected to the system board is removable. Figure 2-6 shows the pin assignments for the connector on the system board.
External Bus Connector The docking station is connected through the 240-pin external bus connector on the rear panel. This connector is installed on the system board and has the following pin assignme.
Pin Type Signal Name Pin Type Signal Name 001 W VCC5A 061 W Dock-PWR 002 W VCC5A 062 W Dock-PWR 003 P -PCIRST 063 W Dock-PWR 004 G GND 064 W Dock-PWR 005 P -ACK_GNT 065 A L_OUT 006 P -CLKRUN 066 A AGN.
Figure 2-7. 240-Pin External Bus Connector Pin Assignments Pin Type Signal Name Pin Type Signal Name 121 C -DOCK_ID1 181 C -DOCK_ID2 122 P IRQSER 182 G GND 123 G GND 183 U USBP1- 124 T IRQ5 184 U UDBP.
UltraBay II Connector The removable diskette drive, secondary hard disk drive, DVD drive, or CD-ROM drive can be connected to the UltraBay II connector on the system board.
Figure 2-8 (Part 1 of 2). UltraBay II Connector Pin Assignments Pin Signal I/O and Feature 1 UBAYID1 I 2 UBAYID2 I 3 GND GND 4 GND GND 5 -INDEX I 6 -DRVSEL0 O 7 -DISKCHG I 8 -DRVID0 I 9N C N/C 10 -MED.
Figure 2-8 (Part 2 of 2). UltraBay II Connector Pin Assignments Pin Signal I/O and Feature 51 DD15 I/O 52 GND GND 53 -UBAY_HDD I 54 DMARQ I 55 GND GND 56 -DIOW O 57 GND GND 58 -DIOR O 59 GND GND 60 IO.
Diskette Drive and Controller Figure 2-9 shows the read, write, and format capabilities of the diskette drive for the ThinkPad computer. Figure 2-9. Diskette Drive Read, Write, and Format Capabilities Diskette Type Format Size 720 KB 1.2 MB 1.44 MB 3.
Memory The ThinkPad computers use the following types of memory: Read-only memory (ROM) Random access memory (RAM) Real-time clock/complementary metal-oxide semiconductor RAM (RT/CMOS RAM) ROM Subsystem The ROM subsystem consists of four banks of 128 KB memory.
System Memory Map Memory is mapped by the memory controller registers. Figure 2-10 on page 2-17 shows the memory map for a correctly functioning system.
System Board Memory for the DIMM Connectors The system board has two DIMM connectors. Figure 2-11 shows the pin assignments for the DIMM connector. Figure 2-11.
RT/CMOS RAM The RT/CMOS RAM (real-time clock/complementary metal-oxide semiconductor RAM) module contains the real-time clock and 128 bytes of CMOS RAM. The clock circuitry uses 14 bytes of this memory; the remainder is allocated to configuration and system-status information.
RT/CMOS Address and NMI Mask Register (Hex 0070) The NMI mask register is used with the RT/CMOS data register (hex 0071) to read from and write to the RT/CMOS RAM bytes. Attention The operation following a write to hex 0070 should access hex 0071; otherwise, intermittent failures of the RT/CMOS RAM can occur.
RT/CMOS RAM I/O Operations During I/O operations to the RT/CMOS RAM addresses, you should mask interrupts to prevent other interrupt routines from changing the RT/CMOS address register before data is read or written. After I/O operations, you should leave the RT/CMOS address and NMI mask register (hex 0070) pointing to status register D (hex 00D).
Real-Time Clock Bytes (Hex 000–00D): Bit definitions and addresses for the real-time clock bytes are shown in Figure 2-15. Figure 2-15. Real-Time Clock Bytes (Hex 000–00D) Address (Hex) Function B.
Bits 6–5 If these bits are a pattern of 01, the oscillator is turned on and the RTC is allowed to keep time. The next update will occur at 500 ms after a pattern of 01 is written to these bits. Bits 4 To use the original bank of memory, select 0. To use the extended registers, select 1.
Bit 2 This bit indicates whether the binary-coded-decimal (BCD) or binary format is used for time-and-date calendar updates. If set to 1, this bit indicates binary format. The system initializes this bit to 0. Bit 1 This bit indicates whether the hours byte is in 12-hour or 24-hour mode.
Bit 7 This read-only bit monitors the internal battery. If set to 1, this bit indicates that the real-time clock has power. If set to 0, it indicates that the real-time clock has lost power and the data in CMOS is no longer valid. Bits 6–0 These bits are reserved.
Diskette Drive Type Byte (Hex 010): This byte indicates the type of the installed diskette drive. Figure 2-21. Diskette Drive Type Byte (Hex 010) Bit Drive Type 7–4 Diskette drive type 3–0 Reserved Bits 7–4 These bits indicate the diskette drive type.
Hard Disk Drive Type Byte (Hex 012): This byte defines the type of hard disk drive installed. Hex 00 indicates that no hard disk drive is installed. Figure 2-26. Hard Disk Drive Type Byte Bit Drive Type 7–4 Hard disk drive 0 3–0 Hard disk drive 1 Reserved Bytes (Hex 013): These bytes are reserved.
Bits 3–2 These bits are reserved. Bit 1 If set to 1, this bit indicates that a coprocessor is installed. Bit 0 If set to 1, this bit indicates that physical diskette drive 0 is installed. Low and High Base Memory Bytes (Hex 015 and Hex 016): The low and high base memory bytes define the amount of memory below the 640 KB address space.
Miscellaneous System Functions and Ports This section provides information about nonmaskable interrupts (NMIs), the power-on password, and hardware compatibility. Nonmaskable Interrupt (NMI) The NMI signals the system microprocessor that a channel check timeout has occurred.
System Control Port A (Hex 0092) Figure 2-30. System Control Port A (Hex 0092) Bit Function 7–4 Reserved 3 Security lock latch 2 Reserved (must be set to 0) 1 Alternate gate A20 0 Alternate hot reset Bits 7–4 These bits are reserved. Bit 3 This bit provides a security lock for the secured area of RT/CMOS.
2. Reset the system microprocessor by writing a 1 to bit 0. 3. Issue a Halt instruction to the system microprocessor. 4. Reenable all maskable and nonmaskable interrupts. If you do not follow this procedure, the results are unpredictable. Note: Whenever possible, use BIOS as an interface to reset the system microprocessor to the real mode.
Bit 6 If set to 1, this bit indicates that a channel check has occurred. Bit 5 If read, this bit indicates the condition of the timer/counter 2 ‘output’ signal. Bit 4 If read, this bit toggles for each refresh request. Bit 3 If set to 0, this bit enables the channel check.
The supervisor password protects the system information in Easy-Setup from being changed by unauthorized persons. For more information about these passwords, refer to the ThinkPad User's Guide .
Hardware Compatibility The computer supports most of the interfaces used by the IBM Personal Computer AT* and the Personal System/2* (PS/2*) products. In many cases, the command and status organization of these interfaces is maintained.
Error Codes POST returns a three or more character code message to indicate the type of test that failed. Figure 2-33 lists the failure indicated with the associated error code. Figure 2-33 (Part 1 of 2). Error Codes Error Code Description 101 Interrupt failure.
Figure 2-33 (Part 2 of 2). Error Codes Error Code Description 601 Diskette drive or controller error. 602 No valid boot record on diskette. 604 Invalid diskette drive error. 1101 Serial-A test failure. 1201 Serial-B test failure. 1701 Hard disk controller failure.
Section 3. Subsystems Video Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Video Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-3 Modem Subsystem . . . . . . . . . . . . . . . . . . . . . . . . . . 3-5 ThinkPad Modem .
Video Subsystem The video subsystem consists of the XGA video controller and video random-access memory (VRAM). The video subsystem supports an IBM thin-film transistor (TFT) as follows: The video subsystem also supports PS/2 analog displays without any additional adapters.
Video Modes The video subsystem supports the modes listed in Figure 3-1 and Figure 3-2 on page 3-4: Figure 3-1. BIOS Video VGA Modes Expanded Size XGA 960 × 600 960 × 700 960 × 600 960 × 600 960 .
The following shows the video BIOS extended modes for the 770 (containing a video chip Trident Cyber 9397 and 2 MB VRAM): Figure 3-2. Video BIOS Extended Modes—Trident 9397 PAL TV Out NTSC o o o o o.
Modem Subsystem The modem subsystem is composed of a digital signal processor (DSP) and a data access arrangement (DAA): General MIDI-compatible, 32-voice wave table synthesizer 36.
Telephony (Modem) Function The telephony (modem) function provides the following settings: I/O Address IRQ Level DMA Channel 0220–0233 (default) 0240–0253 0260–0273 0280–0293 0388–038B (synt.
Audio Subsystem The crystal audio subsystem provides 16-bit stereo audio with high-quality FM music synthesis using four operators per voice. It can record, compress, and play back voice, sound, and music with built-in mixer controls.
Audio Port Specifications Audio Output: – ⅛ -inch mini-jack for headphone – Headphone speaker output: 22 mW (32 ohm) maximum – Maximum output level: 2.4 V pp – Output impedance: 75 ohm Audio Input: – ⅛ -inch mini-jack for microphone or line input – Microphone gain: 26-dB minimum, 48.
Infrared (IR) Subsystem The IR subsystem supports the following functions: MIF/FIR mode – 567 Kbps – 1.152 Mbps – 4.0 Mbps Sharp** mode – 9,600 bps The I/O address can be selected from the following with the system utility program.
Enhanced Video Subsystem The enhanced video subsystem consists of the following functions: Video acceleration (hardware scaling, interpolation, color space conversion) Video overlay Video .
PCMCIA Subsystem The system board has two PCMCIA (Personal Computer Memory Card International Association) slots that support the following types of PC Card: 16 bit PC Card Type–I, II, III 5V, 3.3V 32 bit PC Card Type–I, II, III 5V, 3.3V However, x.
Pin Assignments Figure 3-3 shows the pin assignments for the PCMCIA slots. Figure 3-3 (Part 1 of 2). PCMCIA PC Card Slot Pin Assignments Pin 16-Bit PC Card 32-Bit PC Card 1 Ground Ground 2D 3 CAD0 3D .
Figure 3-3 (Part 2 of 2). PCMCIA PC Card Slot Pin Assignments Pin 16-Bit PC Card 32-Bit PC Card 31 D1 CAD29 32 D2 Reserved 33 IOIS16# CCLKRUN# 34 Ground Ground 35 Ground Ground 36 CD1# CCD1# 37 D11 CA.
IDE Channel on the UltraBay II A primary IDE channel is provided on the UltraBay connector, providing two system settings: A secondary IDE channel is provided on the UltraBay connector, providing two system settings: If a hard disk is attached to the hard disk connector, an IDE device on the UltraBay becomes a primary slave.
Appendix A. System Resources The following summarizes the available system resources for the computer and docking stations. Values in parentheses are alternative values that are selectable in the ThinkPad Configurations program or application programs.
System Resource IRQ I/O Address (Hex) Memory Address (Hex) DMA Channel Enhanced video/MPEG (for the enhanced video model) 11 , 3, 4, 5, 7, 9, 10, 15, or disabled ó None (Automatically set by the syst.
System Resource IRQ I/O Address (Hex) Memory Address (Hex) DMA Channel PC Card (Dependent on the PC Card type) (Dependent on the PC Card type) (Dependent on the PC Card type) None Real time clock 8 00.
System Resource IRQ I/O Address (Hex) Memory Address (Hex) DMA Channel The PCI adapter card (option card) in the SelectaDock 11 , 3, 4, 5, 7, 9, 10, 15, or disabled ñ (Refer to manuals that came with the adapter card.
Appendix B. System Management API (SMAPI) BIOS Overview Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-3 Header Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-4 Calling Convention . . . . . . . . . . . . .
Get Hibernation Timer .................... B-43 Set Hibernation Timer .................... B-44 Get System Event 3 Condition ............... B-45 Set System Event 3 Condition ............... B-46 Get System Resume Condition .............. B-47 Set System Resume Condition .
Overview The ThinkPad Basic Input/Output System (BIOS) provides a special software interface, called the System Management Application Program Interface (SMAPI) BIOS, to control the following unique features of the ThinkPad system: System Information This BIOS provides unique ThinkPad information, such as the system identifier (system ID).
Header Image Systems that support SMAPI BIOS must provide the following header image in the F000 segment system ROM area at the 16-byte boundary. The client needs to search and find this SMAPI BIOS header image to get the entry point for the service.
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.
Calling Convention The client can invoke the SMAPI BIOS with a far-call to the entry point that is specified in the header file. All parameters for the BIOS and other results are stored in the client .
Output Field Field Offset (in Hex) Length Return Code 00 Byte Auxiliary Return Code 01 Byte Parameter 1 02 Word Parameter 2 04 Word Parameter 3 06 Word Parameter 4 08 Double word Parameter 5 0C Double.
Sample in Assembler Language ; ; Input Parameter Structure ; SMB_INPARM STRUC @SMBIN_FUNC DB ? @SMBIN_SUB_FUNC DB ? @SMBIN_PARM_1 DW ? @SMBIN_PARM_2 DW ? @SMBIN_PARM_3 DW ? @SMBIN_PARM_4 DD ? @SMBIN_P.
Sample in C Language / / // Input Parameter Structure / / typedef struct { BYTE SMBIN_FUNC ; BYTE SMBIN_SUB_FUNC ; WORD SMBIN_PARM_1 ; WORD SMBIN_PARM_2 ; WORD SMBIN_PARM_3 ; DWORD SMBIN_PARM_4 ; DWOR.
Calling Convention Pseudo Code The following describes the calling convention using pseudo code. Assembler Language InputParm SMB_INPARM < > OutputParm SMB_OUTPARM < > 16-bit push ds mov a.
Return Codes The following hexadecimal return codes are stored in both the AL (AX) register and the return code field of the output parameter: ðð No error 53 SMAPI function is not available 81 Inval.
Function Description System Information Service Get System Identification Input Field Major Function Number - ðð Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter .
Get CPU Information Input Field Major Function Number - ðð Minor Function Number - ð1 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Reser.
Get Display Device Information Input Field Major Function Number - ðð Minor Function Number - ð2 Parameter 1 - (Bit 8) LCD information (Bit 9) External CRT information (Bits 15-1ð) Reserved (Bits .
Get Docking Station Information Input Field Major Function Number - ðð Minor Function Number - ð3 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Paramet.
Get UltraBay II Information Input Field Major Function Number - ðð Minor Function Number - ð4 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5.
Get Slave Micro Control Unit Information Input Field Major Function Number - ðð Minor Function Number - ð6 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserve.
Get System Sensor Status Input Field Major Function Number - ðð Minor Function Number - ð7 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - .
Get Video Information Input Field Major Function Number - ðð Minor Function Number - ð8 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Res.
Get Refresh Rate Capability Input Field Major Function Number - ðð Minor Function Number - ð9 Parameter 1 - mode = ððxxh - VGA modes (Bits ð-7 are ignored) = ð1ðð - 64ðx4ððx256 = ð1ð1 - .
Return Code - Error status Auxiliary Return Code - Reserved Parameter 1 - Reserved Parameter 2 - Refresh rate capability for specified mode: Bit ð - 6ðHz available Bit 1 - 72Hz available Bit 2 - 75H.
System Configuration Service Get Display Device State Input Field Major Function Number - 1ð Minor Function Number - ðð Parameter 1 - Request type = ððððh : Current hardware = ððð1h : CMOS (.
Output Field Return Code - Error status Auxiliary Return Code - Reserved Parameter 1 - Bits 15-8 : Reserved Bits 7-ð : Capability of display device function Bit ð - Display function type = ð : Not .
Set Display Device State Input Field Major Function Number - 1ð Minor Function Number - ð1 Parameter 1 - Request display status Bit ð - Built-in display (panel) status = ð : Disable = 1 : Enable B.
Get Pointing Device State Input Field Major Function Number - 11 Minor Function Number - ð2 Parameter 1 - Bits 15-8 Request type = ððh - Current hardware = ð1h - CMOS (effective after reboot) Bits.
Set Pointing Device State Input Field Major Function Number - 11 Minor Function Number - ð3 Parameter 1 - Reserved Parameter 2 - Bits 15-8 Pointing device current status Bits 1ð, 8 - Built-in pointi.
Get Hotkey Sticky/Lock Input Field Major Function Number - 13 Minor Function Number - ð2 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Rese.
Set Hotkey Sticky/Lock Input Field Major Function Number - 13 Minor Function Number - ð3 Parameter 1 - Bits 15-8 Reserved Bits 7-ð Request Status = ðð : Disable = ð1 : Sticky Fn key = ð3 : Stick.
Power Management Service Get Power Management Mode Input Field Major Function Number - 22 Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 .
Set Power Management Mode Input Field Major Function Number - 22 Minor Function Number - ð1 Parameter 1 - Bits 15-8 Power management mode Battery operation = ððh - High performance mode = ð1h - Au.
Get Timer Control Input Field Major Function Number - 22 Minor Function Number - ð2 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Reserved .
Output Field Return Code - Error status Auxiliary Return Code - Reserved Parameter 1 - Reserved Parameter 2 - Bits 15-8 Capability of timer control Bit 8 - System (Hibernation/suspend) timer = ð : No.
Set Timer Control Input Field Major Function Number - 22 Minor Function Number - ð3 Parameter 1 - Bits 15-8 Reserved Bits 7-ð Timer control Bit ð - System (Hibernation/suspend) timer = ð : Disable.
Event Bit Definition Bits 2-ð - Reserved Bit 3 - Standby Bit 4 - Suspend Bit 5 - RediSafe Bit 6 - Hibernation Bit 7 - Power off Note: If bits are duplicated, the highest bit is available.
Get System Event Global Condition Input Field Major Function Number - 3ð Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Param.
Set System Event Global Condition Input Field Major Function Number - 3ð Minor Function Number - ð1 Parameter 1 - Bits 15-8 Reserved Bits 7-ð Global condition for event Bit ð - Enable safe suspend if suspend is selected.
Get System Event 1 Condition Input Field Major Function Number - 31 Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5.
Set System Event 1 Condition Input Field Major Function Number - 31 Minor Function Number - ð1 Parameter 1 - Condition for hardware and software event Bits 15-8 - Capability (see page B-34) Bits 7-ð.
Get System Event 2 Condition Input Field Major Function Number - 32 Minor Function Number - ðð Parameter 1 - System timer expiration event definition Bits 15-8 - Capability (see page B-34) Bits 7-ð.
Set System Event 2 Condition Input Field Major Function Number - 32 Minor Function Number - ð1 Parameter 1 - Condition for system timer expiration Bits 15-8 - Capability (see page B-34) Bits 7-ð - C.
Get System Timer Input Field Major Function Number - 32 Minor Function Number - ð2 Parameter 1 - Bits 15-8 Power mode select = ððh - Reserved = ð1h - Manual PM mode (ac) = ð2h - Manual PM mode (b.
Set System Timer Input Field Major Function Number - 32 Minor Function Number - ð3 Parameter 1 - Bits 15-8 Power mode select = ððh - All mode = ð1h - Manual PM mode (AC) = ð2h - Manual PM mode (b.
Get Hibernation Timer Input Field Major Function Number - 32 Minor Function Number - ð6 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Reser.
Set Hibernation Timer Input Field Major Function Number - 32 Minor Function Number - ð7 Parameter 1 - Bits 15-8 : Reserved Bits 7-ð Hibernation timer during suspend mode initial value (units: minute.
Get System Event 3 Condition Input Field Major Function Number - 33 Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5.
Set System Event 3 Condition Input Field Major Function Number - 33 Minor Function Number - ð1 Parameter 1 - Bits 15-8 : Reserved Bits 7-ð Condition for critical low battery condition detection Bits.
Get System Resume Condition Input Field Major Function Number - 34 Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 .
Set System Resume Condition Input Field Major Function Number - 34 Minor Function Number - ð1 Parameter 1 - Condition for resuming trigger from the system suspend mode Bit ð - Resume switch by hardw.
Get System Resume Timer Input Field Major Function Number - 34 Minor Function Number - ð2 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Res.
Set System Resume Timer Input Field Major Function Number - 34 Minor Function Number - ð3 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - TOD of resume timer (BCD f.
Request System Standby Input Field Major Function Number - 7ð Minor Function Number - ðð Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 - Re.
Request System Hibernation Input Field Major Function Number - 7ð Minor Function Number - ð2 Parameter 1 - Reserved Parameter 2 - Reserved Parameter 3 - Reserved Parameter 4 - Reserved Parameter 5 -.
Samples Data Structure Assembler Language ; ; Smapi BIOS Header ; SMB_HEADER STRUC @SMBHDR_SIG DB 4 dup (?) ; +ðð - Signature @SMBHDR_VER DB ? ; +ð4 - Major version @SMBHDR_VER_VER DB ? ; +ð5 - Mi.
Parameters ; ;Input Parameter ; SMB_INPARM STRUC @SMBIN_FUNC DB ? @SMBIN_SUB_FUNC DB ? @SMBIN_PARM_1 DW ? @SMBIN_PARM_2 DW ? @SMBIN_PARM_3 DW ? @SMBIN_PARM_4 DD ? @SMBIN_PARM_5 DD ? SMB_INPARM ENDS ; .
C Language // // SMAPI BIOS Header // typedef struct { BYTE SMBHDR_SIG ] 4 [ ; // Signature BYTE SMBHDR_VER ; // Major version BYTE SMBHDR_VER_VER ; // Minor version BYTE SMBHDR_LEN ; // Length BYTE S.
Parameters / / // Input Parameter / / typedef struct { BYTE SMBIN_FUNC ; BYTE SMBIN_SUB_FUNC ; WORD SMBIN_PARM_1 ; WORD SMBIN_PARM_2 ; WORD SMBIN_PARM_3 ; DWORD SMBIN_PARM_4 ; DWORD SMBIN_PARM_5 ; } I.
Function Declaration C Language / / // Smapi BIOS function / / typedef WORD (far SMB)(FPINPARM, FPOUTPARM) ; SMAPI BIOS B-57.
Installation Check Assembler Language: Real Mode ; ; FindSmapi ; ----------- ; ; On Entry : None ; On Exit : CF = ð .. Find out ; DX - Segment ; BX - Pointer to header ; ; CF = 1 .
@@: ; Find Smapi Head mov dx, BIOS_SEG ; Calculate Checksum.. next. pushf ; Save direction flag cld ; Clear it mov si, bx xor ax, ax movzx cx,byte ptr ds: [ bx ] .
C Language typedef struct { BYTE SMBHDR_SIG [ 4 ] ; // Signature BYTE SMBHDR_VER ; // Major version BYTE SMBHDR_VER_VER ; // Minor version BYTE SMBHDR_LEN ; // Length BYTE SMBHDR_CHKSUM ; // Checksum .
BOOLEAN GetSmapiEntry(PSMB pFunc) { PFSMB_HEADER_REAL MyPtr = ðxFððððððð ; WORD cnt = ð ; BYTE cksum = ð ; / / // 1) Search for signature first / / while((cnt++ < ðx1ððð) && !.
BIOS Call Assembler Language: 16-Bit Protected Mode ; ; Build Input Parameter Field ; mov al, SMB_GET_SYSID mov [ bx ] .@Func, al push ds mov ax, offset OutputParm push ax push ds mov ax, offset InputParm push ax call _SmapiBios add sp, 8 ; ; Get information from Output Parm ; or ax, ax jnz Error mov bx, offset OutputParm mov al, [ bx ] .
32-Bit Protected Mode ; ; Build Input Parameter Field ; mov ebx, offset InputParm mov al, SMB_GET_SYSID mov [ ebx ] .@Func, al push ds mov eax, offset OutputParm push eax push ds mov eax, offset InputParm push eax call _SmapiBios add sp, 16 ; ; Get information from Output Parm ; or ax, ax jnz Error mov ebx, offset OutputParm mov ax, [ ebx ] .
C Language WORD GetSystemID() { SMB SmapiEntry ; INPARM MyInput ; OUTPARM MyOutput ; WORD Rc = -1 ; if (GetSmapiEntry(&SmapiEntry)) { MyInput.SMBIN_FUNC = ð ; MyInput.SMBIN_SUB_FUNC = ð ; if (SmapiEntry(&MyInput, &MyOutput)) { // No System ID is available } else { Rc = MyOutput.
Appendix C. Notices References in this publication to IBM products, programs, or services do not imply that IBM intends to make these available in all countries in which IBM operates. Any reference to an IBM product, program, or service is not intended to state or imply that only that IBM product, program, or service may be used.
Trademarks The following terms in this publication are trademarks of the IBM Corporation in the United States or other countries or both: AT IBM Mwave Personal Computer AT Personal System/2 PS/2 Think.
Index A acoustical readings, specifications 1-9 address 20 gate 2-30 address and NMI mask register, RT/CMOS 2-20 address map, system board I/O 1-5 address map–RT/CMOS RAM 2-19 air temperature, speci.
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, specific.
O output protection, power supply 1-11 output voltage sequencing 1-11 overvoltage fault 1-11 P page hit 1-7 page miss 1-7 parallel controller port 1-4 passwords hard disk 2-32 power-on 2-32 supervisor.
RT/CMOS (continued) real-time clock bytes (continued) status register B (hex 00B) 2-23 status register C (hex 00C) 2-24 status register D (hex 00D) 2-24 S scan codes 2-5 selectable drive-startup seque.
system board (continued) devices (continued) microprocessor 1-3 parallel controller port 1-4 RAM subsystem 1-3 serial controller port 1-4 system timers 1-3 video subsystem 1-3 I/O address map 1-5 syst.
IBM Part Number: 05L1739 Printed in the United States of America.
An important point after buying a device IBM 770 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought IBM 770 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data IBM 770 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, IBM 770 you will learn all the available features of the product, as well as information on its operation. The information that you get IBM 770 will certainly help you make a decision on the purchase.
If you already are a holder of IBM 770, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime IBM 770.
However, one of the most important roles played by the user manual is to help in solving problems with IBM 770. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device IBM 770 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
