LPC47N227 100 Pin Super I/O with LPC Interface for Notebook Applications FEATURES 3.3 Volt Operation (5V Tolerant) Serial Ports PC99 and ACPI 1.0b Compliant - Two Full Function Serial Ports Programmable Wakeup Event Interface (nIO PME - High Speed NS16C550 Compatible UARTs Pin) with Send/Receive 16-Byte FIFOs SMI Support (nIO SMI Pin) - Supports 230k and 460k Baud GPIOs (29) - Programmable Baud Rate Generator Two IRQ Input Pins - Modem Control Circuitry XNOR Chain Infrared Communications Controller Intelligent Auto Power Management - IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer 2.88MB Super I/O Floppy Disk Controller IR Support - Licensed CMOS 765B Floppy Disk Controller - 2 IR Ports - Software and Register Compatible with - 96 Base I/O Address, 15 IRQ Options and 3 SMSC s Proprietary 82077AA Compatible DMA Options Core Multi-Mode Parallel Port with ChiProtect - Supports One Floppy Drive Directly - Standard Mode IBM PC/XT, PC/AT, and PS/2 - Configurable Open Drain/Push-Pull Output Compatible Bidirectional Parallel Port Drivers - Enhanced Parallel Port (EPP) Compatible - - Supports Vertical Recording Format EPP 1.7 and EPP 1.9 (IEEE 1284 Compliant) - 16-Byte Data FIFO - IEEE 1284 Compliant Enhanced Capabilities - 100% IBM Compatibility Port (ECP) - Detects All Overrun and Underrun Conditions - ChiProtect Circuitry for Protection Against - Sophisticated Power Control Circuitry (PCC) Damage Due to Printer Power-On Including Multiple Powerdown Modes for - 192 Base I/O Address, 15 IRQ and 3 DMA Reduced Power Consumption Options - DMA Enable Logic LPC Bus Host Interface - Data Rate and Drive Control Registers - Multiplexed Command, Address and Data Bus - Swap Drives A and B - 8-Bit I/O Transfers - Non-Burst Mode DMA Option - 8-Bit DMA Transfers - 48 Base I/O Address, 15 IRQ and 3 DMA - 16-Bit Address Qualification Options - Serial IRQ Interface Compatible with - Forceable Write Protect and Disk Change Serialized IRQ Support for PCI Systems Controls - PCI nCLKRUN Support Floppy Disk Available on Parallel Port Pins (ACPI - Power Management Event (nIO PME) Compliant) Interface Pin Enhanced Digital Data Separator 100 Pin TQN, lead-free RoHS compliant package - 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 and 100 Pin STQN, lead-free RoHS compliant Kbps Data Rates package - Programmable Precompensation Modes GENERAL DESCRIPTION The SMSC LPC47N227 is a 3.3V PC 99 and ACPI 1.0b compliant Super I/O Controller. The LPC47N227 implements the LPC interface, a pin reduced ISA interface which provides the same or better performance as the ISA/X-bus with a substantial savings in pins used. The part also includes 29 GPIO pins. The LPC47N227 incorporates SMSCs true CMOS 765B floppy disk controller, advanced digital data separator, 16- byte data FIFO, two 16C550 compatible UARTs, one Multi-Mode parallel port with ChiProtect circuitry plus EPP and ECP support and one floppy direct drive support. The LPC47N227 does not require any external filter components, is easy to use and offers lower system cost and reduced board area. The LPC47N227 is software and register compatible with SMSCs proprietary 82077AA core. The true CMOS 765B core provides 100% compatibility with IBM PC/XT and PC/AT architectures and provides data overflow and underflow protection. The SMSC advanced digital data separator incorporates SMSCs patented data SMSC DB LPC47N227 Page 1 Rev. 03-29-07 PRODUCT PREVIEW 100 Pin Super I/O with LPC Interface for Notebook Applications separator technology allowing for ease of testing and use. The LPC47N227 supports both 1Mbps and 2Mbps data rates and vertical recording operation at 1Mbps Data Rate. The LPC47N227 also features a full 16-bit internally decoded address bus, a Serial IRQ interface with PCI nCLKRUN support, relocatable configuration ports and three DMA channel options. Both on-chip UARTs are compatible with the NS16C550. One UART includes additional support for a Serial Infrared Interface that complies with IrDA v1.2 (Fast IR), HPSIR, and ASKIR formats (used by Sharp and other PDAs), as well as Consumer IR. The parallel port is compatible with IBM PC/AT architectures, as well as IEEE 1284 EPP and ECP. The parallel port ChiProtect circuitry prevents damage caused by an attached powered printer when the LPC47N227 is not powered. The LPC47N227 incorporates sophisticated power control circuitry (PCC). The PCC supports multiple low power down modes. The LPC47N227 also features Software Configurable Logic (SCL) for ease of use. SCL allows programmable system configuration of key functions such as the FDC, parallel port, and UARTs. The LPC47N227 supports the ISA Plug-and-Play Standard (Version 1.0a) and provides the recommended functionaity to support Windows 95/98 and PC99. The I/O Address, DMA Channel and Hardware IRQ of each device in the LPC47N227 may be reprogrammed through the internal configuration registers. There are 192 I/O address location options, a Serialized IRQ interface, and three DMA channels. ORDERING INFORMATION Order Numbers: LPC47N227-MT for 100 Pin TQN, Lead-free RoHS Compliant Package LPC47N227-MV for 100 Pin STQN, Lead-free RoHS Compliant Package 80 ARKAY DRIVE, HAUPPAUGE, NY 11788 (631) 435-6000, FAX (631) 273-3123 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 (theTerms of Sale Agreemen). 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 SMSCs website at