LPC47M182
Advanced I/O Controller with
Motherboard GLUE Logic
Datasheet
Product Features
3.3V Operation (5V tolerant)
LPC Interface
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Multiplexed Command, Address and Data Bus
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Serial IRQ Interface Compatible with Serialized IRQ
Support for PCI Systems
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
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
ACPI 1.0b/2.0 Compliant
Programmable Wake-up Event Interface
PC99a/PC2001 Compliant
General Purpose Input/Output Pins (13)
Fan Tachometer Inputs (2)
Green and Yellow Power LEDs
ISA Plug-and-Play Compatible Register Set
Motherboard GLUE Logic
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5V Reference Generation
5V Standby Reference Generation
IDE Reset/Buffered PCI Reset Outputs
Power OK Signal Generation
Power Sequencing
Power Supply Turn On Circuitry
Resume Reset Signal Generation
Hard Drive Front Panel LED
Voltage Translation for DDC to VGA Monitor
SMBus Isolation Circuitry
CNR Dynamic Down Control
Serial Ports
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Two Full Function Serial Ports
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High Speed 16C550A Compatible UART 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
32-Byte Data FIFO
IrDA 1.0 Compliant
SHARP ASK IR
HP-SIR
480 Address, Up to 15 IRQ and Three DMA Options
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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 One Floppy Drive
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Configurable Open Drain/Push-Pull Output Drivers
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Supports Vertical Recording Format
16-Byte Data FIFO
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100% IBM Compatibility
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Detects All Overrun and Underrun Conditions
Multi-Mode Parallel Port with ChiProtect
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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
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
480 Address, Up to Eight IRQ and Three DMA
Options
Interrupt Generating Registers
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Registers Generate IRQ1 – IRQ15 on Serial IRQ
Interface.
XOR-Chain Board Test
128 Pin QFP Packages, 3.2 mm Footprint; green,
lead-free also available
SMSC LPC47M182
Revision 1.8
SMSC/Non-SMSC Register Sets
(02-24-05)
DATASHEET
SMSC [ SMSC CORPORATION ]
