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FDC37N972 Datasheet(PDF) 5 Page - SMSC Corporation

No. de Pieza. FDC37N972
Descripción  Advanced Notebook I/O Controller with Enhanced Keyboard Control and System Management
Descarga  390 Pages
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Fabricante  SMSC [SMSC Corporation]
Página de inicio  http://www.smsc.com
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FDC37N972 Datasheet(HTML) 5 Page - SMSC Corporation

 
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FDD INTERFACE PINS...............................................................................................................134
UART POWER MANAGEMENT ..................................................................................................135
PARALLEL PORT POWER MANAGEMENT................................................................................135
8051 EMBEDDED CONTROLLER .................................................................................................136
8051 FUNCTIONAL OVERVIEW.................................................................................................136
POWERING UP OR RESETTING THE 8051...............................................................................137
CPU RESET SEQUENCE ...........................................................................................................140
8051 CLOCK CONTROLS ..........................................................................................................142
8051 RING OSCILLATOR FAIL-SAFE CONTROLS ....................................................................144
8051 MEMORY MAP...................................................................................................................145
FLASH ROM INTERFACE...........................................................................................................152
8051 CONTROL REGISTERS.....................................................................................................153
8051 CONFIGURATION/CONTROL MEMORY MAPPED REGISTERS .........................................162
8051 INTERRUPTS.....................................................................................................................165
WATCH DOG TIMER .....................................................................................................................183
WDT OPERATION......................................................................................................................183
WDT ACTION .............................................................................................................................183
WDT ACTIVATION .....................................................................................................................183
WDT RESET MECHANISM.........................................................................................................183
WDT MEMORY MAPPED REGISTERS ......................................................................................184
SHARED FLASH INTERFACE .......................................................................................................185
FLASH INTERFACE DIAGRAM...................................................................................................185
SYSTEM MEMORY MAP ............................................................................................................186
KEYBOARD BIOS (KMEM) .........................................................................................................187
SYSTEM BIOS (HMEM) ..............................................................................................................189
HOST FLASH ACCESS ..............................................................................................................189
IDLE MODE ................................................................................................................................195
SLEEP MODE.............................................................................................................................197
WAKE-UP EVENTS ....................................................................................................................201
8042 STYLE HOST INTERFACE.................................................................................................204
KEYBOARD DATA WRITE..........................................................................................................204
8051- TO- HOST KEYBOARD COMMUNICATION ......................................................................205
HOST-TO 8051 KEYBOARD COMMUNICATION ........................................................................206
GATEA20 HARDWARE SPEED-UP ............................................................................................208
SMSC PS/2 LOGIC OVERVIEW .................................................................................................217
SMSC PS/2 MEMORY MAPPED CONTROL REGISTERS ..........................................................218
DEVIL LOGIC OVERVIEW..........................................................................................................225
THE DEVIL PS/2 LOGIC COMMANDS........................................................................................225
DEVIL PS/2 MEMORY MAPPED CONTROL REGISTERS ..........................................................227


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