7
ACPI/PME/SMI FEATURES ..............................................................................................................147
7.1
POWER STATES..............................................................................................................................................147
7.1.1
7.1.2
7.1.3
Global/System Sleep States.................................................................................................................147
Device Sleep States .............................................................................................................................147
Wake Events ........................................................................................................................................147
7.2
7.3
ACPI SPECIFIC REGISTERS .............................................................................................................................148
ACPI FEATURES ............................................................................................................................................150
7.3.1
7.3.2
7.3.3
Legacy/ACPI Select..............................................................................................................................150
Power Button with Override..................................................................................................................150
RTC Alarm as a PME Event .................................................................................................................151
7.4
PME SUPPORT ..............................................................................................................................................151
7.4.1
‘Wake On Specific Key’ Option.............................................................................................................152
7.5
SYSTEM MANAGEMENT INTERRUPT (SMI).........................................................................................................154
7.5.1
7.5.2
SMI Registers.......................................................................................................................................154
ACPI Support Register for SMI Generation ..........................................................................................155
8
9
RUNTIME REGISTERS .....................................................................................................................156
8.1
8.2
RUNTIME REGISTERS BLOCK SUMMARY............................................................................................................156
RUNTIME REGISTERS BLOCK DESCRIPTION.......................................................................................................160
CONFIGURATION .............................................................................................................................185
9.1
SYSTEM ELEMENTS ........................................................................................................................................185
CONFIGURATION SEQUENCE............................................................................................................................185
PROGRAMMING EXAMPLE ................................................................................................................................185
CHIP LEVEL (GLOBAL) CONTROL/CONFIGURATION REGISTERS[0X00-0X2F].........................................................185
LOGICAL DEVICE CONFIGURATION/CONTROL REGISTERS [0X30-0XFF] ...............................................................185
9.2
9.3
9.4
9.5
10
OPERATIONAL DESCRIPTION.....................................................................................................185
10.1
10.2
MAXIMUM GUARANTEED RATINGS.................................................................................................................185
DC ELECTRICAL CHARACTERISTICS..............................................................................................................185
11
TIMING DIAGRAMS .......................................................................................................................185
11.1
11.2
11.3
11.4
11.5
11.6
POWER-UP TIMING .....................................................................................................................................185
INPUT CLOCK TIMING...................................................................................................................................185
OUTPUT CLOCK TIMING ...............................................................................................................................185
LPC INTERFACE .........................................................................................................................................185
FLOPPY DISK TIMING...................................................................................................................................185
PARALLEL PORT TIMING...............................................................................................................................185
11.6.1
ECP Parallel Port Timing ..................................................................................................................185
INFRARED INTERFACE TIMING DIAGRAMS.......................................................................................................185
SMBUS TIMING .........................................................................................................................................185
X-BUS TIMING ............................................................................................................................................185
Timing For LPC initiated I/O Cycles with the X-Bus ..........................................................................185
Representative LPC I/O Cycle to X-Bus Cycle Timing......................................................................185
X-Bus Write Cycle: LPC I/O Write Cycle - Data from Host to X-Bus Device .....................................185
Timing For SMBus initiated I/O Cycles with the X-Bus......................................................................185
11.7
11.8
11.9
11.9.1
11.9.2
11.9.3
11.9.4
11.10 TIMING FOR SERIAL IRQ’S ...........................................................................................................................185
11.11 KEYBOARD/MOUSE TIMING ..........................................................................................................................185
11.12 FAN TIMING ................................................................................................................................................185
11.13 TIMING FOR LED OUTPUT............................................................................................................................185
12
SMSC 128 PIN QFP PACKAGE OUTLINE, 3.9 MM FOOTPRINT................................................185
13
APPENDIX - TEST MODES ...........................................................................................................185
13.1
13.2
13.2.1
13.2.2
NORMAL OPERATING POWER SUPPLY STATE.................................................................................................185
TEST MODES..............................................................................................................................................185
Board Test Mode...............................................................................................................................185
XNOR-Chain Test Mode ...................................................................................................................185
SMSC LPC47S45x
Page 5 of 259
Rev. 06-01-06
DATASHEET
SMSC [ SMSC CORPORATION ]
