LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 4

• Manufacturer Part Number: LPC47M112
• Description: ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
• Manufacturer: SMSC Corporation

Enhanced Super I/O Controller with LPC Interface
Datasheet
16
17
17.1
17.2
17.3
18
18.1
18.2
19
20
21
21.1
21.2
22
22.1
22.2
22.3
23
24
24.1
25
25.1
25.2
26
26.1
26.2
27
27.1
27.2
28
29
30
30.1
DC ELECTRICAL CHARACTERISTICS ...................................................................................................................178
31
32
33
33.1
SMSC DS – LPC47M112
ADDRESS.........................................................................................................................................................................................79
22.1.1
PME ................................................................................................................................................................................................123
25.1.1
25.1.2
PRELOAD.......................................................................................................................................................................................132
Status Port ........................................................................................................... 80
Bits[5:0]................................................................................................................ 81
PARALLEL PORT ................................................................................................ 84
POWER MANAGEMENT.................................................................................... 102
Timing Diagrams for SER_IRQ Cycle .............................................................. 105
8042 KEYBOARD CONTROLLER DESCRIPTION ........................................... 108
GENERAL PURPOSE I/O .................................................................................. 117
SYSTEM MANAGEMENT INTERRUPT (SMI) ................................................... 125
PME SUPPORT .................................................................................................. 126
FAN SPEED CONTROL AND MONITORING .................................................... 129
SECURITY FEATURE ........................................................................................ 133
GAME PORT LOGIC .......................................................................................... 134
RUNTIME REGISTERS ...................................................................................... 136
CONFIGURATION .............................................................................................. 160
OPERATIONAL DESCRIPTION......................................................................... 178
TIMING DIAGRAMS ........................................................................................... 181
PACKAGE OUTLINE.......................................................................................... 205
APPENDIX - TEST MODE.................................................................................. 206
MPU-401 Command Controller ...................................................................................................................82
MIDI UART ....................................................................................................................................................83
MPU-401 Configuration Registers ..............................................................................................................83
IBM XT/AT Compatible, Bi-Directional And Epp Modes ...........................................................................85
Extended Capabilities Parallel Port............................................................................................................90
Latches On Keyboard and Mouse IRQs...................................................................................................114
Keyboard and Mouse PME Generation ....................................................................................................116
GPIO Pins ...................................................................................................................................................117
Either Edge Triggered Interrupts..............................................................................................................123
Led Functionality .......................................................................................................................................123
‘Wake On Specific Key’ Option.................................................................................................................127
Fan Speed Control .....................................................................................................................................129
Fan Tachometer Inputs .............................................................................................................................130
GPIO Device Disable Register Control.....................................................................................................133
Device Disable Register ............................................................................................................................133
Power Control Register .............................................................................................................................135
VREF Pin.....................................................................................................................................................135
Maximum Guaranteed Ratings*................................................................................................................178
Board Test Mode........................................................................................................................................206
GPIO Operation ..............................................................................................................................................................121
FANx Registers...............................................................................................................................................................129
Fan Control Register.......................................................................................................................................................130
DATASHEET
Page 4
Rev. 02/02/2005