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LPC47M112-MC Datasheet(PDF) 4 Page - SMSC Corporation

Part No. LPC47M112-MC
Description  ENHANCED SUPER I/O CONTROLLER WITH LPC INTERFACE
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Maker  SMSC [SMSC Corporation]
Homepage  http://www.smsc.com
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 4 page
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SMSC DS – LPC47M112
Page 4
Rev. 01/09/2001
TABLE OF CONTENTS
FEATURES....................................................................................................................................................................1
GENERAL DESCRIPTION ............................................................................................................................................3
1
PIN CONFIGURATION...........................................................................................................................................6
2
DESCRIPTION OF PIN FUNCTIONS.....................................................................................................................7
2.1
Buffer Type Descriptions................................................................................................................................10
2.2
Pins That Require External Pullup Resistors .................................................................................................11
3
BLOCK DIAGRAM ...............................................................................................................................................12
4
REFERENCE DOCUMENTS................................................................................................................................13
5
3 VOLT OPERATION / 5 VOLT TOLERANCE ....................................................................................................14
6
POWER FUNCTIONALITY...................................................................................................................................15
6.1
VCC Power ....................................................................................................................................................15
6.2
VTR Support ..................................................................................................................................................15
6.3
Internal PWRGOOD ......................................................................................................................................15
6.4
32.768 kHz Trickle Clock Input ......................................................................................................................15
6.5
Indication of 32kHz Clock ..............................................................................................................................15
6.6
Trickle Power Functionality ............................................................................................................................15
6.7
VREF Pin .......................................................................................................................................................17
6.8
Maximum Current Values ..............................................................................................................................17
6.9
Power Management Events (PME/SCI).........................................................................................................17
7
FUNCTIONAL DESCRIPTION .............................................................................................................................18
7.1
Super I/O Registers .......................................................................................................................................18
7.2
Host Processor Interface (LPC) .....................................................................................................................18
7.3
LPC INTERFACE ..........................................................................................................................................18
7.4
Power Management.......................................................................................................................................20
7.5
LPC Transfer Sequence Examples................................................................................................................22
8
FLOPPY DISK CONTROLLER ............................................................................................................................23
8.1
FDC Internal Registers ..................................................................................................................................23
9
COMMAND SET/DESCRIPTIONS .......................................................................................................................39
10
INSTRUCTION SET..........................................................................................................................................41
11
SERIAL PORT (UART) .....................................................................................................................................58
12
Serial Data........................................................................................................................................................62
13
INFRARED INTERFACE ..................................................................................................................................70
14
MPU-401 MIDI UART........................................................................................................................................71
14.1
Overview ....................................................................................................................................................71
14.2
Host Interface.............................................................................................................................................71
15
Status Port .......................................................................................................................................................73
16
Bits[5:0] ............................................................................................................................................................74
16.1
MPU-401 Command Controller ..................................................................................................................75
16.2
MIDI UART.................................................................................................................................................76
16.3
MPU-401 Configuration Registers..............................................................................................................76
17
PARALLEL PORT ............................................................................................................................................77
17.1
IBM XT/AT Compatible, Bi-Directional And Epp Modes .............................................................................78
17.2
Extended Capabilities Parallel Port ............................................................................................................82
18
POWER MANAGEMENT..................................................................................................................................93
19
Timing Diagrams for SER_IRQ Cycle ............................................................................................................96
20
8042 KEYBOARD CONTROLLER DESCRIPTION..........................................................................................99
20.1
Latches On Keyboard and Mouse IRQs...................................................................................................104
20.2
Keyboard and Mouse PME Generation....................................................................................................106
21
GENERAL PURPOSE I/O...............................................................................................................................107
21.1
GPIO Pins ................................................................................................................................................107
21.2
Either Edge Triggered Interrupts ..............................................................................................................112
21.3
Led Functionality ......................................................................................................................................112
22
SYSTEM MANAGEMENT INTERRUPT (SMI) ...............................................................................................114
23
PME SUPPORT ..............................................................................................................................................115




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