Computer system power management interconnection circuitry, syst

Details Computer system power management interconnection circuitry, syst Computer system power management interconnection circuitry, syst

1996-11-06

1999-01-26

Ray, Gopal C.

Boots, shoes, and leggings

364707, 3642731, 3642732, 3642733, 3642735, 364DIG1, 395733, G06F 132

Patent

active

058647023

ABSTRACT:
A microcomputer integrated circuit (102) has a central processing unit (CPU) (702) first power management circuit (708) responsive to a system management interrupt (SMI) input for controlling operations of the CPU (702). A card interface integrated circuit (112) is adapted for coupling a card (24) to the microcomputer integrated circuit (102) and has a second power management circuit logic (1620, 1630) that responds to a plurality of interrupt event inputs (in CSC REGs A, B) and concentrates these inputs to a single card system management interrupt output (CRDSMI#). A peripheral processor integrated circuit (110) has a third power management circuit (920) including a plurality of system management interrupt (SMI) sources, and a SMI unit (2370). The SMI unit (2370) has an output (SMI#) connected to the SMI input of the microprocessor integrated circuit. The SMI unit (2370) responds to the card SMI output of the card interface integrated circuit (112) as well as the plurality of SMI sources. The plurality of SMI sources includes timer circuitry (2350) connected to power down terminals (IDEPWR#, FDDPWR#, SIUPWR#, PCSPWR#) for connection to external peripherals upon respective timeouts in the timer circuitry (2350). Other circuits, systems and methods are also described.

REFERENCES:
patent: 3905025 (1975-09-01), Davis et al.
patent: 4087855 (1978-05-01), Bennett et al.
patent: 5230074 (1993-07-01), Canova, Jr. et al.
patent: 5357628 (1994-10-01), Yuen
patent: 5394527 (1995-02-01), Fakhruddin et al.
patent: 5404546 (1995-04-01), Stewart
patent: 5421027 (1995-05-01), Benzel et al.
patent: 5437039 (1995-07-01), Yuen
patent: 5493684 (1996-02-01), Gephardt et al.
patent: 5511204 (1996-04-01), Crump et al.
patent: 5535420 (1996-07-01), Kardach et al.
ACC Micro, 2056 3.3V Pentium Single Chip Solution for Notebook Applications, Rev. 1.1, pp. 1-1--1-10.
ACC Micro, 2066 486/386DX Notebook Enhanced-SL Single Chip AT, Rev. 1.2, Oct. 11, 1993, pp. 1-1--1-10.
Intel, System I/O SIO 82378IB, Rev. 1.0, Architectural Overview.
OPTi, Viper Notebook Chipset, 82C556/82C557/82C558N, pp. 1-5, 85-87, 117-125.
OPTi, Single Chip Notebook SCNB, 82C463 or 82C463MV, Data Book, Pre. Ver. 2.0, Mar. 18, 1993, pp. 1-2, 8-20.
Chips, 82C836 ChipSet, Single-Chip 386SX AT Data Book, Dec., 1990, pp. 1-6, 39-49.
Intel386 SL Microprocessor SuperSet System Design Guide, The SL SuperSet Extension Registers, Chapter 10, pp. 10-1, 10-2, 10-12, 10-127--10-149, 10-172--10-183, 10-188--10-190.
Tidalwave, TM8100A, Advanced 486SLC/SXLC Palmtop Single Chip, Rev. 1.6, pp. 1, 12-20, 36-38, 42-46, Application Note, Ver 1.1, pp. 1, 4, 5, & 7.
Western Digital, WD8110/LV System Controller 80486SX/DX PC/AT Compatible Desktop, Laptop, Palmtop, and Pen-Based Computers, Sep. 15, 1993, pp. 1-9, 55-65, 93-126.
EFAR, EC802G, One Chip 32 Bits PC/AT Core Logic, Technical Reference Manual, 1994, pp. 11-13, 32-45, 64-80, 93, 96.
Linley Gwennap, Microprocessor Report, "TI Shows Integrated x86 CPU for Notebooks", vol. 8, No. 2, Feb. 14, 1994, pp. 5-7.
Intel, PCI Local Bus, 82092AA PCI to PCMCIA/Enhanced-IDE Controller (PPEC), Dec. 1993, pp. 6-9.
Tidal Technologies Inc., TM8100A, Advanced 486LC/SXLC Palmtop Single Chip, User's Guide & Application Note, Jan. 1994, pp. 1-4, 36-37.
Intel386.TM. SL Microprocessor SuperSet System Design Guide, 1992, Chapter 2, pp. 2-1--2-10.
Intel486.TM. SL Microprocessor Superset System Design Guide, 1992, Chapter 12, pp. 12-1--12-38.
Intel386.TM. SL Microprocessor SuperSet System Design Guide, 1992, Chapter 14, pp. 14-1--14-28.
Intel486.TM. SL Microprocessor Superset System Design Guide, 1992, pp. 13-9--13-11.
Intel386.TM. SL Microprocessor SuperSet Programmer's Reference Manual, 1992, Chapter 6, pp. 6-1--6-56.

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