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SMSC LPC47M997 Specifications

Lpc super i/o with hardware monitoring block
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Table of Contents

Product Features

3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
LPC Interface
ACPI 1.0/2.0 Compliant
Fan Control
− Fan Speed Control Outputs (2)
− Fan Tachometer Inputs (2)
Programmable Wake-up Event Interface
PC98, PC99, PC01 Compliant
Dual Game Port Interface
MPU-401 MIDI Support
General Purpose Input/Output Pins (37)
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
− 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
Enhanced Digital Data Separator
− 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps
Data Rates
− Programmable Precompensation Modes
SMSC LPC47M997
Page 1
PRODUCT PREVIEW
LPC47M997
LPC Super I/O with
Hardware Monitoring
Block
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 16C550A 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
− IrDA 1.0 Compliant
− SHARP ASK IR
− 480 Addresses, Up to 15 IRQ
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
− 960 Address, Up to 15 IRQ and Three DMA Options
Data Brief
Rev. 01-12-07

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Summary of Contents for SMSC LPC47M997

  • Page 1: Product Features

    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 − Configurable Open Drain/Push-Pull Output Drivers −...

  • Page 2: Ordering Information

    − RESET# Pin for generating 20msec Low Reset Pulse − Configurable offset for internal or external temperature channels LPC47M997-NW for 128 pin, QFP lead-free RoHS compliant package Rev. 01-12-07 Phoenix Keyboard BIOS ROM 128 Pin QFP, lead-free RoHS compliant package, 3.2mm footprint...
  • Page 3 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.

  • Page 4: Block Diagram

    SMC PROPRIETARY SEPARATOR 82077 COMPATIBLE WITH WRITE VERTICAL PRECOM- FLOPPYDISK PENSATION CONTROLLER CORE RCLOCK RDATA Figure 1 - LPC47M997 Block Diagram Page 4 PRODUCT PREVIEW LEDs PD[7,0] Multi-Mode Busy, Slct, PE, Parallel Port ERROR, ACK with ChiProtect STROBE, INIT, SLCTIN,...

  • Page 5: Package Outline

    4. Dimension for foot length L measured at the gauge plane 0.25 mm above the seating plane. 5. Details of pin 1 identifier are optional but must be located within the zone indicated. SMSC LPC47M997 Table 1 - 128 PIN QFP Package Parameters 3.05...

Table of Contents