SMSC LPC47B27x
Rev. 08-10-04
DATASHEET
LPC47B27x
100 Pin Enhanced Super I/O Controller with LPC
Interface
FEATURES
3.3 Volt Operation, 5 Volt Tolerant
LPC
Interface
Fan
Control
-
Fan Speed Control Outputs (2)
-
Fan Tachometer Inputs (2)
Programmable Wake-up Event Interface
PC98, PC99, and ACPI 1.0 Compliant
Dual Game Port Interface
MPU-401 MIDI Support
General Purpose Input/Output Pins (37)
ISA IRQ to Serial IRQ Conversion
ISA Plug-and-Play Compatible Register Set
Intelligent Auto Power Management
System Management Interrupt
2.88MB Super I/O Floppy Disk Controller
-
Licensed CMOS 765B Floppy Disk
Controller
-
Software and Register Compatible
with SMSC's Proprietary 82077AA
Compatible
Core
-
Supports Two Floppy Drives Directly
-
Configurable Open Drain/Push-Pull
Output
Drivers
-
Supports Vertical Recording Format
-
16-Byte Data FIFO
-
100% IBM Compatibility
-
Detects All Overrun and Underrun
Conditions
-
Sophisticated Power Control Circuitry
(PCC) Including Multiple Powerdown
Modes for Reduced Power
Consumption
-
DMA Enable Logic
-
Data Rate and Drive Control Registers
-
480 Address, Up to 15 IRQ and
Three
DMA
Options
Floppy Disk Available on Parallel Port Pins
Enhanced Digital Data Separator
-
2 Mbps, 1 Mbps, 500 Kbps, 300
Kbps, 250 Kbps Data Rates
- Programmable
Precompensation
Modes
Keyboard
Controller
- 8042
Software
Compatible
-
8 Bit Microcomputer
-
2k Bytes of Program ROM
-
256 Bytes of Data RAM
-
Four Open Drain Outputs Dedicated
for
Keyboard/Mouse
Interface
-
Asynchronous Access to Two Data
Registers and One Status Register
-
Supports Interrupt and Polling Access
-
8 Bit Counter Timer
-
Port 92 Support
-
Fast Gate A20 and KRESET Outputs
Serial
Ports
-
Two Full Function Serial Ports
-
High Speed NS16C550A Compatible
UARTs with Send/Receive 16-Byte
FIFOs
-
Supports 230k and 460k Baud
Programmable Baud Rate Generator
Modem
Control
Circuitry
-
480 Address and 15 IRQ Options
Infrared
Port
-
Multiprotocol Infrared Interface
-
32-Byte Data FIFO
-
IrDA 1.0 Compliant
- Consumer
IR
-
SHARP ASK IR
-
480 Address, Up to 15 IRQ and Three
DMA Options
Multi-ModeTM
Parallel
Port with ChiProtectTM
-
Standard Mode IBM PC/XT
,
PC/AT
,
and PS/2TM Compatible Bidirectional
Parallel
Port
-
Enhanced Parallel Port (EPP)
Compatible - EPP 1.7 and EPP 1.9
(IEEE
1284
Compliant)
-
IEEE 1284 Compliant Enhanced
Capabilities
Port
(ECP)
-
ChiProtect Circuitry for Protection
-
960 Address, Up to 15 IRQ and Three
DMA Options
LPC
Interface
-
Multiplexed Command, Address and
Data Bus
-
Serial IRQ Interface Compatible with
Serialized IRQ Support for PCI Systems
- PME
Interface
100 Pin QFP Package
SMSC LPC47B27x
- 2 -
Rev. 08-10-04
DATASHEET
80 Arkay Drive
Hauppauge,
NY
11788
(631)
435-6000
FAX (631) 273-3123
Copyright SMSC 2004. All rights reserved.
Circuit diagrams and other information relating to SMSC products are included as a means of illustrating typical applications. Consequently, complete
information sufficient for construction purposes is not necessarily given. Although the information has been checked and is believed to be accurate, no
responsibility is assumed for inaccuracies. SMSC reserves the right to make changes to specifications and product descriptions at any time without
notice. Contact your local SMSC sales office to obtain the latest specifications before placing your product order. The provision of this information does
not convey to the purchaser of the described semiconductor devices any licenses under any patent rights or other intellectual property rights of SMSC
or others. All sales are expressly conditional on your agreement to the terms and conditions of the most recently dated version of SMSC's standard
Terms of Sale Agreement dated before the date of your order (the "Terms of Sale Agreement"). The product may contain design defects or errors
known as anomalies which may cause the product's functions to deviate from published specifications. Anomaly sheets are available upon request.
SMSC products are not designed, intended, authorized or warranted for use in any life support or other application where product failure could cause
or contribute to personal injury or severe property damage. Any and all such uses without prior written approval of an Officer of SMSC and further
testing and/or modification will be fully at the risk of the customer. Copies of this document or other SMSC literature, as well as the Terms of Sale
Agreement, may be obtained by visiting SMSC's website at http://www.smsc.com. SMSC is a registered trademark of Standard Microsystems
Corporation ("SMSC"). Product names and company names are the trademarks of their respective holders.
SMSC DISCLAIMS AND EXCLUDES ANY AND ALL WARRANTIES, INCLUDING WITHOUT LIMITATION ANY AND ALL IMPLIED WARRANTIES
OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND AGAINST INFRINGEMENT AND THE LIKE, AND ANY AND
ALL WARRANTIES ARISING FROM ANY COURSE OF DEALING OR USAGE OF TRADE.
IN NO EVENT SHALL SMSC BE LIABLE FOR ANY DIRECT, INCIDENTAL, INDIRECT, SPECIAL, PUNITIVE, OR CONSEQUENTIAL DAMAGES;
OR FOR LOST DATA, PROFITS, SAVINGS OR REVENUES OF ANY KIND; REGARDLESS OF THE FORM OF ACTION, WHETHER BASED ON
CONTRACT; TORT; NEGLIGENCE OF SMSC OR OTHERS; STRICT LIABILITY; BREACH OF WARRANTY; OR OTHERWISE; WHETHER OR
NOT ANY REMEDY OF BUYER IS HELD TO HAVE FAILED OF ITS ESSENTIAL PURPOSE, AND WHETHER OR NOT SMSC HAS BEEN
ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
SMSC LPC47B27x
- 3 -
Rev. 08-10-04
DATASHEET
Revision History
REVISION LEVEL
AND DATE
SECTION/FIGURE/ENTRY CORRECTION
Rev. 08-10-04
Changes throughout document including the
following chapters and/or sections:
FEATURES
pg. 1
GENERAL DESCRIPTION
pg. 7
DESCRIPTION OF PIN FUNCTIONS pg. 9
3 VOLT OPERATION / 5 VOLT
TOLERANCE pg. 14
POWER FUNCTIONALITY pg. 15
FUNCTIONAL DESCRIPTION
pg. 19
FLOPPY DISK CONTROLLER
pg. 23
COMMAND SET/DESCRIPTIONS
pg.
37
INSTRUCTION SET
pg. 39
FDC SWAP BIT pg. 55
INFRARED INTERFACE
pg. 69
PARALLEL PORT
pg. 75
PARALLEL PORT FLOPPY DISK
CONTROLLER
pg. 91
POWER MANAGEMENT
pg. 94
8042 KEYBOARD CONTROLLER
DESCRIPTION
pg. 100
GENERAL PURPOSE I/O
pg. 109
SYSTEM MANAGEMENT
INTERRUPT (SMI)
pg. 115
PME SUPPORT
pg. 117
FAN SPEED CONTROL AND
MONITORING
pg. 120
ISA IRQ TO SERIAL IRQ
CONVERSION CAPABILITY
pg. 127
RUNTIME REGISTERS
pg. 128
CONFIGURATION
pg. 151
OPERATIONAL DESCRIPTION
pg. 168
TIMING DIAGRAMS
pg. 171
APPENDIX - TEST MODE
pg. 195
SMSC LPC47B27x
- 4 -
Rev. 08-10-04
DATASHEET
TABLE OF CONTENTS
FEATURES..................................................................................................................................................................1
GENERAL DESCRIPTION .......................................................................................................................................7
PIN CONFIGURATION.............................................................................................................................................8
DESCRIPTION OF PIN FUNCTIONS.....................................................................................................................9
B
UFFER
T
YPE
D
ESCRIPTIONS
.................................................................................................................................13
P
INS
T
HAT
R
EQUIRE
E
XTERNAL
P
ULLUP
R
ESISTORS
............................................................................................13
BLOCK DIAGRAM...................................................................................................................................................14
REFERENCE DOCUMENTS..................................................................................................................................14
3 VOLT OPERATION / 5 VOLT TOLERANCE ...................................................................................................14
POWER FUNCTIONALITY ...................................................................................................................................15
VCC
P
OWER
............................................................................................................................................................15
VTR
S
UPPORT
.........................................................................................................................................................15
I
NTERNAL
PWRGOOD ...........................................................................................................................................15
32.768
K
H
Z
T
RICKLE
C
LOCK
I
NPUT
........................................................................................................................15
I
NDICATION OF
32
K
H
Z
C
LOCK
.................................................................................................................................16
T
RICKLE
P
OWER
F
UNCTIONALITY
...........................................................................................................................16
VREF
P
IN
................................................................................................................................................................17
M
AXIMUM
C
URRENT
V
ALUES
..................................................................................................................................17
P
OWER
M
ANAGEMENT
E
VENTS
(PME/SCI)...........................................................................................................18
FUNCTIONAL DESCRIPTION...............................................................................................................................19
SUPER
I/O
REGISTERS......................................................................................................................................19
HOST
PROCESSOR
INTERFACE
(LPC) .........................................................................................................19
LPC
INTERFACE ..................................................................................................................................................19
FLOPPY DISK CONTROLLER..............................................................................................................................23
FDC
INTERNAL
REGISTERS.............................................................................................................................23
COMMAND SET/DESCRIPTIONS........................................................................................................................37
INSTRUCTION SET .................................................................................................................................................39
FDC SWAP BIT ........................................................................................................................................................55
SERIAL PORT (UART) ...........................................................................................................................................56
INFRARED INTERFACE........................................................................................................................................69
IR
T
RANSMIT
P
INS
...................................................................................................................................................69
MPU-401 MIDI UART..............................................................................................................................................70
O
VERVIEW
................................................................................................................................................................70
H
OST
I
NTERFACE
......................................................................................................................................................70
MPU-401
C
OMMAND
C
ONTROLLER
.........................................................................................................................73
MIDI
UART.............................................................................................................................................................73
MPU-401
C
ONFIGURATION
R
EGISTERS
....................................................................................................................74
SMSC LPC47B27x
- 5 -
Rev. 08-10-04
DATASHEET
PARALLEL PORT....................................................................................................................................................75
IBM
XT/AT
COMPATIBLE,
BI-DIRECTIONAL
AND
EPP
MODES ..................................................................76
EXTENDED
CAPABILITIES
PARALLEL
PORT.................................................................................................80
PARALLEL PORT FLOPPY DISK CONTROLLER...........................................................................................91
FDC SWAP BIT..........................................................................................................................................................91
FLOPPY ON PARALLEL PORT PIN....................................................................................................................93
POWER MANAGEMENT .......................................................................................................................................94
SERIAL IRQ ..............................................................................................................................................................97
TIMING DIAGRAMS FOR SER_IRQ CYCLE ....................................................................................................97
8042 KEYBOARD CONTROLLER DESCRIPTION .........................................................................................100
L
ATCHES
O
N
K
EYBOARD AND
M
OUSE
IRQ
S
..........................................................................................................106
K
EYBOARD AND
M
OUSE
PME
G
ENERATION
..........................................................................................................107
GENERAL PURPOSE I/O .....................................................................................................................................109
GPIO
P
INS
.............................................................................................................................................................109
EITHER
EDGE
TRIGGERED
INTERRUPTS ..................................................................................................114
LED
FUNCTIONALITY .......................................................................................................................................114
WATCH
DOG
TIMER..........................................................................................................................................114
SYSTEM MANAGEMENT INTERRUPT (SMI) ................................................................................................115
PME SUPPORT.......................................................................................................................................................117
`WAKE
ON
SPECIFIC
KEY'
OPTION ...............................................................................................................118
FAN SPEED CONTROL AND MONITORING ..................................................................................................120
F
AN
S
PEED
C
ONTROL
...........................................................................................................................................120
F
AN
T
ACHOMETER
I
NPUTS
....................................................................................................................................121
SECURITY FEATURE ..........................................................................................................................................124
GPIO
D
EVICE
D
ISABLE
R
EGISTER
C
ONTROL
.......................................................................................................124
D
EVICE
D
ISABLE
R
EGISTER
..................................................................................................................................124
GAME PORT LOGIC ............................................................................................................................................124
P
OWER
C
ONTROL
R
EGISTER
................................................................................................................................126
VREF
P
IN
..............................................................................................................................................................126
ISA IRQ TO SERIAL IRQ CONVERSION CAPABILITY ...............................................................................127
RUNTIME REGISTERS ........................................................................................................................................128
CONFIGURATION ................................................................................................................................................151
OPERATIONAL DESCRIPTION.........................................................................................................................168
MAXIMUM
GUARANTEED
RATINGS*............................................................................................................168
DC
ELECTRICAL
CHARACTERISTICS..........................................................................................................168
TIMING DIAGRAMS ..............................................................................................................................................171
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