SMSC LPC47S45x User Manual

LPC47S45x

Advanced I/O with X-Bus Interface

FEATURES

 3.3 Volt Operation (5V tolerant)
 Floppy Disk Controller (Supports 2 FDCs)
 Multi-Mode Parallel Port
 Two UARTs
 8042 Keyboard Controller
 SMBus Controller

- SMBus access to LCD Interface

- SMBus Serial Port 2 Interface Disable

- SMBus access to Power On Elapsed Time
Counters

- Programmable Slave Address

 X-Bus Interface

- Supports up to four external I/O components

- Offers two modes of operation

- Support for Driving LCD Panel Interface
Controller

- Supports Port 80h “Snooping”

 Programmable Wakeup Event Interface (IO_PME#

Pin)

 SMI Support (IO_SMI# Pin)
 GPIOs (55)
 Fan Controller

- One Fan Speed Control Output

- One Fan Tachometer Input

 ISA IRQ to Serial IRQ Conversion
 XNOR Chain for Board Test Mode
 PC2001 and ACPI 2.0 Compliant
 128-pin QFP Package
 ISA Plug-and-Play Compatible Register Set
 Intelligent Auto Power Management
 Power On Elapsed Time Counters

- Counter for Main Power

- Counter for Standby Power

 Real Time Clock

- MC146818 and DS1287 Compatible

- 256 Bytes of Battery Backed CMOS in Two 128­Byte Banks

- 128 Bytes of CMOS RAM Lockable in 4x32 Byte
Blocks

- 12 and 24 Hour Time Format

- 24-hour daily alarm

- 30-day alarm

- Binary and BCD Format

- <1µA Standby Current (typ)

SMSC LPC47S45x 1 Rev. 04-30-07

 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

- 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 Four DMA
Options

 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

- IrDA 1.0, HP-SIR, ASK IR Support

PRODUCT PREVIEW

 Multi-Mode Parallel Port with ChiProtect

- Standard Mode IBM PC/XT, PC/AT, and PS/2
Compatible Bi-directional 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 Against
Damage Due to Printer Power-On

- 960 Address, up to 15 IRQ and Four DMA
Options

ORDERING INFORMATION

for 128 pin QFP package with Phoenix 42i Keyboard BIOS Lead-Free RoHS Compliant

for 128 pin QFP package with Phoenix 42i Keyboard BIOS

 Pin Reduced ISA Host Interface (LPC Bus)

- Multiplexed Command, Address and Data Bus

- 8-Bit I/O Transfers

- 8-Bit DMA Transfers

- 16-Bit Address Qualification

- Serial IRQ Interface Compatible with Serialized

IRQ Support for PCI Systems

- Power Management Event (PME) Interface Pin

 Power Management
 ACPI Registers

LPC47S457-NS

LPC47S457-NC

80 ARKAY DRIVE, HAUPPAUGE, NY 11788 [phone], FAX [phone]

Copyright © 2007 SMSC or its subsidiaries. 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; WHET HER 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 LPC47S45x 2 Rev. 04-30-07

PRODUCT PREVIEW