Theory of Operation
4-11
♦
Provides type F transfers
♦
Interrupt controller
♦
Provides 14 interrupt channels
♦
Independently programmable level/edge triggered channels
♦
Counter/Timers
♦
Provides 8254 compatible timers for system timer, refresh request, speaker
output use
♦
Keyboard controller
♦
Built-in PS2/AT keyboard controller
♦
The specific I/O is used to save the external TTL buffer
♦
Real time clock
♦
Built-in real time clock
♦
128-byte CMOS RAM with 2
♦
Plug-and-Play port support
♦
Programmable chip select
♦
Steerable interrupt request lines
♦
PMU interface
♦
Supports CPU SMM mode, SMI feature
♦
Supports programmable stop clock throttle
♦
Supports the APM control
♦
Provides external suspend mode switch/turbo switch/ring-in switch
♦
Provides four system states for power saving (on, doze, standby, suspend)
♦
Provides three timers from 1 second to 300 minutes to individually monitor
VGA, MODE, IN status
♦
Supports RTC alarm wake up control
♦
IDE interface
♦
Built-in PCI IDE master controller
Summary of Contents for Extensa 900 Series
Page 1: ...Maintenance Manual ExtensaTM 900 Series Notebook Computers 9813715 0001 December 1996 ...
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Page 138: ...A 2 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 1 of 30 ...
Page 139: ...Notebook Schematic Diagrams A 3 Figure A 1 Notebook Main Board Logic Diagrams Sheet 2 of 30 ...
Page 140: ...A 4 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 3 of 30 ...
Page 141: ...Notebook Schematic Diagrams A 5 Figure A 1 Notebook Main Board Logic Diagrams Sheet 4 of 30 ...
Page 142: ...A 6 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 5 of 30 ...
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Page 146: ...A 10 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 9 of 30 ...
Page 147: ...Notebook Schematic Diagrams A 11 Figure A 1 Notebook Main Board Logic Diagrams Sheet 10 of 30 ...
Page 148: ...A 12 Notebook Schematic Diagrams Figure A 1 Motherboard PWB Logic Diagrams Sheet 11 of 23 ...
Page 149: ...Notebook Schematic Diagrams A 13 Figure A 1 Notebook Main Board Logic Diagrams Sheet 12 of 30 ...
Page 153: ...Notebook Schematic Diagrams A 17 Figure A 1 Notebook Main Board Logic Diagrams Sheet 16 of 30 ...
Page 154: ...A 18 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 17 of 30 ...
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Page 158: ...A 22 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 21 of 30 ...
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Page 166: ...A 30 Notebook Schematic Diagrams Figure A 1 Notebook Main Board Logic Diagrams Sheet 29 of 30 ...
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Page 171: ...MPB Schematic Diagrams B 3 Figure B 1 MPB CPU Board Logic Diagrams Sheet 2 of 3 ...
Page 176: ...B 8 MPB Schematic Diagrams Figure B 3 MPB Main Board Motherboard Logic Diagrams Sheet 3 of 10 ...
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