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LPC47M112 Datasheet(PDF) 3 Page - SMSC Corporation

Part No. LPC47M112
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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Enhanced Super I/O Controller with LPC Interface
Datasheet
SMSC DS – LPC47M112
Page 4
Rev. 02/02/2005
DATASHEET
Table of Contents
1
General Description .............................................................................................. 8
2
PIN CONFIGURATION ........................................................................................... 9
3
DESCRIPTION OF PIN FUNCTIONS ................................................................... 10
3.1
Buffer Type Descriptions................................................................................................................................14
3.2
Pins That Require External Pullup Resistors................................................................................................14
4
BLOCK DIAGRAM ............................................................................................... 15
5
REFERENCE DOCUMENTS ................................................................................ 16
6
3 VOLT OPERATION / 5 VOLT TOLERANCE..................................................... 17
7
POWER FUNCTIONALITY................................................................................... 18
7.1
VCC Power .......................................................................................................................................................18
7.2
VTR Support ....................................................................................................................................................18
7.3
Internal PWRGOOD .........................................................................................................................................18
7.4
32.768 kHz Trickle Clock Input .......................................................................................................................18
7.5
Indication of 32kHz Clock ...............................................................................................................................18
7.6
Trickle Power Functionality............................................................................................................................19
7.7
VREF Pin ..........................................................................................................................................................20
7.8
Maximum Current Values ...............................................................................................................................20
7.9
Power Management Events (PME/SCI) ..........................................................................................................20
8
FUNCTIONAL DESCRIPTION ............................................................................. 21
8.1
Super I/O Registers .........................................................................................................................................21
8.2
Host Processor Interface (LPC) .....................................................................................................................21
8.3
LPC INTERFACE..............................................................................................................................................21
8.3.1
LPC Interface Signal Definition.........................................................................................................................................21
8.3.2
LPC Cycles .......................................................................................................................................................................22
8.3.3
Field Definitions ................................................................................................................................................................22
8.4
Power Management.........................................................................................................................................23
8.4.1
CLOCKRUN Protocol .......................................................................................................................................................23
8.4.2
Typical Usage ...................................................................................................................................................................23
8.4.3
SYNC Timeout..................................................................................................................................................................23
8.4.4
SYNC Patterns and Maximum Number of SYNCS...........................................................................................................23
8.4.5
SYNC Error Indication ......................................................................................................................................................23
8.5
LPC Transfer Sequence Examples ................................................................................................................25
8.5.1
Wait State Requirements..................................................................................................................................................25
9
FLOPPY DISK CONTROLLER ............................................................................ 26
9.1
FDC Internal Registers....................................................................................................................................26
10
COMMAND SET/DESCRIPTIONS ....................................................................... 42
11
INSTRUCTION SET.............................................................................................. 45
12
SERIAL PORT (UART)......................................................................................... 64
13
Serial Data............................................................................................................ 68
14
INFRARED INTERFACE ...................................................................................... 77
15
MPU-401 MIDI UART............................................................................................ 78
15.1
Overview.......................................................................................................................................................78
15.2
Host Interface...............................................................................................................................................78




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