Lenovo ThinkPad 770X Technical Reference Manual for the ThinkPad 770 - Page 4
Subsystems, Appendix A. System Resources, Appendix B., System Management API SMAPI BIOS
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RT/CMOS RAM Miscellaneous System Functions and Ports Nonmaskable Interrupt (NMI System Control Port A (Hex 0092 System Control Port B (Hex 0061 Power-On Password Other Passwords Selectable Drive-Startup Sequence Hardware Compatibility Error Codes 2-19 2-29 2-29 2-30 2-31 2-32 2-32 2-33 2-34 2-35 Section 3. Subsystems 3-1 Video Subsystem 3-2 Video Modes 3-3 Modem Subsystem 3-5 ThinkPad Modem 3-5 MIDI Port Function 3-5 Sound Blaster Support Function 3-5 Telephony (Modem) Function 3-6 Audio Subsystem 3-7 MIDI Port Function 3-7 Sound Blaster Support Function 3-7 Audio Port Specifications 3-8 Infrared (IR) Subsystem 3-9 IRQ Level and DMA Channel 3-9 Enhanced Video Subsystem 3-10 Video Port Specification 3-10 PCMCIA Subsystem 3-11 Pin Assignments 3-12 IDE Channel on the UltraBay II 3-14 MIDI/Joystick Port 3-14 MIDI Interface 3-14 Joystick Interface 3-14 Appendix A. System Resources A-1 Appendix B. System Management API (SMAPI) BIOS Overview B-1 Overview B-3 Header Image B-4 Calling Convention B-6 Parameter Structure B-6 Calling Convention Pseudo Code B-10 Return Codes B-11 Function Description B-12 iv