LPC47M997
LPC Super I/O with
Hardware Monitoring
Block
Data Brief
Product Features
3.3 Volt Operation (SIO Block is 5 Volt Tolerant)
LPC Interface
ACPI 1.0/2.0 Compliant
Fan Control
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Fan Speed Control Outputs (2)
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Fan Tachometer Inputs (2)
Keyboard Controller
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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
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
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Licensed CMOS 765B Floppy Disk Controller
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Software and Register Compatible with SMSC's
Proprietary 82077AA Compatible Core
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Supports Two Floppy Drives
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Configurable Open Drain/Push-Pull Output Drivers
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Supports Vertical Recording Format
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16-Byte Data FIFO
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100% IBM Compatibility
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Detects All Overrun and Underrun Conditions
Serial Ports
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Two Full Function Serial Ports
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High Speed 16C550A Compatible UARTs with
Send/Receive 16-Byte FIFOs
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Supports 230k and 460k Baud
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Programmable Baud Rate Generator
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Modem Control Circuitry
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480 Address and 15 IRQ Options
Infrared Port
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Multiprotocol Infrared Interface
IrDA 1.0 Compliant
SHARP ASK IR
480 Addresses, Up to 15 IRQ
Sophisticated Power Control Circuitry (PCC)
Including Multiple Powerdown Modes for
Reduced Power Consumption
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DMA Enable Logic
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Data Rate and Drive Control Registers
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480 Address, Up to 15 IRQ and Three DMA Options
Multi-Mode Parallel Port with ChiProtect
Standard Mode IBM PC/XT, PC/AT, and PS/2
Compatible Bi-directional Parallel Port
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Enhanced Parallel Port (EPP) Compatible - EPP 1.7
and EPP 1.9 (IEEE 1284 Compliant)
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IEEE 1284 Compliant Enhanced Capabilities Port
(ECP)
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ChiProtect Circuitry for Protection
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960 Address, Up to 15 IRQ and Three DMA Options
Enhanced Digital Data Separator
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2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250 Kbps
Data Rates
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Programmable Precompensation Modes
SMSC LPC47M997
Page 1
Rev. 01-12-07
PRODUCT PREVIEW
SMSC [ SMSC CORPORATION ]
