LPC47M112 SMSC Corporation, LPC47M112 Datasheet - Page 3

• 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
Table of Contents
1
2
3
3.1
3.2
4
5
6
7
7.1
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8
8.1
8.2
8.3
8.4
8.5
9
9.1
10
11
12
13
14
15
15.1
15.2
SMSC DS – LPC47M112
8.3.1
8.3.2
8.3.3
8.4.1
8.4.2
8.4.3
8.4.4
8.4.5
8.5.1
General Description .............................................................................................. 8
PIN CONFIGURATION ........................................................................................... 9
DESCRIPTION OF PIN FUNCTIONS ................................................................... 10
Buffer Type Descriptions................................................................................................................................14
Pins That Require External Pullup Resistors................................................................................................14
BLOCK DIAGRAM ............................................................................................... 15
REFERENCE DOCUMENTS ................................................................................ 16
3 VOLT OPERATION / 5 VOLT TOLERANCE..................................................... 17
POWER FUNCTIONALITY................................................................................... 18
VCC Power .......................................................................................................................................................18
VTR Support ....................................................................................................................................................18
Internal PWRGOOD .........................................................................................................................................18
32.768 kHz Trickle Clock Input .......................................................................................................................18
Indication of 32kHz Clock ...............................................................................................................................18
Trickle Power Functionality............................................................................................................................19
VREF Pin ..........................................................................................................................................................20
Maximum Current Values ...............................................................................................................................20
Power Management Events (PME/SCI) ..........................................................................................................20
FUNCTIONAL DESCRIPTION ............................................................................. 21
Super I/O Registers .........................................................................................................................................21
Host Processor Interface (LPC) .....................................................................................................................21
LPC INTERFACE..............................................................................................................................................21
Power Management.........................................................................................................................................23
LPC Transfer Sequence Examples ................................................................................................................25
FLOPPY DISK CONTROLLER ............................................................................ 26
FDC Internal Registers....................................................................................................................................26
COMMAND SET/DESCRIPTIONS ....................................................................... 42
INSTRUCTION SET.............................................................................................. 45
SERIAL PORT (UART)......................................................................................... 64
Serial Data............................................................................................................ 68
INFRARED INTERFACE ...................................................................................... 77
MPU-401 MIDI UART............................................................................................ 78
Overview.......................................................................................................................................................78
Host Interface...............................................................................................................................................78
LPC Interface Signal Definition.........................................................................................................................................21
LPC Cycles .......................................................................................................................................................................22
Field Definitions ................................................................................................................................................................22
CLOCKRUN Protocol .......................................................................................................................................................23
Typical Usage ...................................................................................................................................................................23
SYNC Timeout..................................................................................................................................................................23
SYNC Patterns and Maximum Number of SYNCS...........................................................................................................23
SYNC Error Indication ......................................................................................................................................................23
Wait State Requirements..................................................................................................................................................25
DATASHEET
Page 4
Rev. 02/02/2005