LPC47M172 SMSC Corporation, LPC47M172 Datasheet - Page 7

• Manufacturer Part Number: LPC47M172
• Description: ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
• Manufacturer: SMSC Corporation

Chapter 8
Chapter 9
Chapter 10
Chapter 11
Chapter 12
SMSC/Non-SMSC Register Sets (Rev. 02-27-04)
7.26
7.27
7.28
7.29
7.30
7.31
7.32
7.33
7.34
7.35
7.36
7.37
7.38
7.39
7.40
7.41
11.1
11.2
11.3
11.4
11.5
12.1
12.2
12.3
7.25.14
7.25.15
7.25.16
7.25.17
7.25.18
7.25.19
7.26.1
7.26.2
7.27.1
7.27.2
7.27.3
7.27.4
7.27.5
7.27.6
7.28.1
7.29.1
7.29.2
7.30.1
7.30.2
7.31.1
7.31.2
7.31.3
7.31.4
11.1.1
11.1.2
11.1.3
11.1.4
11.1.5
11.1.6
11.1.7
11.1.8
Port 92 Fast Gatea20 and Keyboard Reset..........................................................................................119
General Purpose I/O.............................................................................................................................124
PME Support ........................................................................................................................................128
Fan Monitoring......................................................................................................................................130
Hard Drive and Power LED Logic .........................................................................................................132
Power Generation (5V) .........................................................................................................................134
IDE Reset Output Pin ...........................................................................................................................136
PCI Reset Output Pins..........................................................................................................................136
Voltage Translation Circuit....................................................................................................................137
SMBus Isolation Circuitry......................................................................................................................139
PS_ON Logic ........................................................................................................................................141
PWRGD_3V Logic ................................................................................................................................141
SCK_BJT_GATE Output ......................................................................................................................143
Backfeed Cut and Latched Backfeed Cut Circuitry ...............................................................................144
Resume Reset Logic ............................................................................................................................149
CNR Logic ............................................................................................................................................149
System Elements..................................................................................................................................173
Chip Level (Global) Control/Configuration Registers[0x00-0x2F] .........................................................180
Logical Device Configuration/Control Registers [0x30-0xFF] ...............................................................183
Logical Device I/O Address ..................................................................................................................187
Logical Device Configuration Registers ................................................................................................190
Maximum Guaranteed Ratings .............................................................................................................196
Operational DC Characteristics ............................................................................................................196
Standby Power Requirements ..............................................................................................................201
Power Control Runtime Registers...................................................................................... 151
GPIO Runtime Registers.................................................................................................... 158
Runtime Register Block Runtime Registers ....................................................................... 162
Configuration ...................................................................................................................... 173
Electrical Characteristics .................................................................................................... 196
Interrupts .......................................................................................................................................118
Memory Configurations .................................................................................................................118
Register Definitions .......................................................................................................................118
External Clock Signal ....................................................................................................................119
Default Reset Conditions ...............................................................................................................119
GateA20 and Keyboard Reset.......................................................................................................119
Port 92 Register.............................................................................................................................119
Keyboard and Mouse PME Generation .........................................................................................123
GPIO Pins .....................................................................................................................................125
Description.....................................................................................................................................125
GPIO Control .................................................................................................................................126
GPIO Operation.............................................................................................................................127
GPIO PME Functionality................................................................................................................128
Either Edge Triggered Interrupts ...................................................................................................128
‘Wake on Specific Key’ Option.......................................................................................................129
Fan Tachometer Inputs .................................................................................................................131
Detection of a Stalled Fan .............................................................................................................131
Hard Drive Front Panel LED (Red) ................................................................................................132
Yellow and Green Power LED Pins ...............................................................................................133
Reference Pins ..............................................................................................................................134
5V Main Reference Generation .....................................................................................................135
5V Standby Reference Generation................................................................................................135
Reference Timings ........................................................................................................................136
Primary Configuration Address Decoder .......................................................................................173
Entering the Configuration State....................................................................................................173
Exiting the Configuration State ......................................................................................................173
Configuration Sequence ................................................................................................................174
Enter Configuration Mode..............................................................................................................174
Configuration Mode .......................................................................................................................174
Exit Configuration Mode ................................................................................................................174
Programming Example ..................................................................................................................175
DATASHEET
Page 7
Advanced I/O Controller with Motherboard GLUE Logic
SMSC LPC47M172
Datasheet