LPC47M112-MW datasheet(4/208 Pages) SMSC

4 / 208 page

Enhanced Super I/O Controller with LPC Interface

Datasheet

SMSC DS – LPC47M112

Page 4

Rev. 02/02/2005

DATASHEET

ADDRESS.........................................................................................................................................................................................79

Status Port ........................................................................................................... 80

Bits[5:0]................................................................................................................ 81

17.1

MPU-401 Command Controller ...................................................................................................................82

17.2

MIDI UART ....................................................................................................................................................83

17.3

MPU-401 Configuration Registers..............................................................................................................83

PARALLEL PORT ................................................................................................ 84

18.1

IBM XT/AT Compatible, Bi-Directional And Epp Modes ...........................................................................85

18.2

Extended Capabilities Parallel Port............................................................................................................90

POWER MANAGEMENT.................................................................................... 102

Timing Diagrams for SER_IRQ Cycle .............................................................. 105

8042 KEYBOARD CONTROLLER DESCRIPTION ........................................... 108

21.1

Latches On Keyboard and Mouse IRQs...................................................................................................114

21.2

Keyboard and Mouse PME Generation ....................................................................................................116

GENERAL PURPOSE I/O .................................................................................. 117

22.1

GPIO Pins ...................................................................................................................................................117

22.1.1

GPIO Operation ..............................................................................................................................................................121

PME ................................................................................................................................................................................................123

22.2

Either Edge Triggered Interrupts..............................................................................................................123

22.3

Led Functionality .......................................................................................................................................123

SYSTEM MANAGEMENT INTERRUPT (SMI) ................................................... 125

PME SUPPORT .................................................................................................. 126

24.1

‘Wake On Specific Key’ Option.................................................................................................................127

FAN SPEED CONTROL AND MONITORING .................................................... 129

25.1

Fan Speed Control.....................................................................................................................................129

25.1.1

FANx Registers...............................................................................................................................................................129

25.1.2

Fan Control Register.......................................................................................................................................................130

25.2

Fan Tachometer Inputs .............................................................................................................................130

PRELOAD.......................................................................................................................................................................................132

SECURITY FEATURE ........................................................................................ 133

26.1

GPIO Device Disable Register Control.....................................................................................................133

26.2

Device Disable Register ............................................................................................................................133

GAME PORT LOGIC .......................................................................................... 134

27.1

Power Control Register .............................................................................................................................135

27.2

VREF Pin.....................................................................................................................................................135

RUNTIME REGISTERS ...................................................................................... 136

CONFIGURATION.............................................................................................. 160

OPERATIONAL DESCRIPTION......................................................................... 178

30.1

Maximum Guaranteed Ratings*................................................................................................................178

DC ELECTRICAL CHARACTERISTICS ...................................................................................................................178

TIMING DIAGRAMS ........................................................................................... 181

PACKAGE OUTLINE.......................................................................................... 205

APPENDIX - TEST MODE.................................................................................. 206

33.1

Board Test Mode........................................................................................................................................206

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