LPC47M172-NR
ADVANCED I/O CONTROLLER WITH MOTHERBOARD GLUE LOGIC
Product Features
3.3V Operation (5V tolerant)
LPC Interface
Multiplexed Command, Address and Data Bus
Serial IRQ Interface Compatible with Serialized IRQ
Support for PCI Systems
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
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
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 One Floppy Drive
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 Eight IRQ and Three 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 16C550A Compatible UART 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
32-Byte Data FIFO
IrDA 1.0 Compliant
SHARP ASK IR
HP-SIR
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
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
Interrupt Generating Registers
Registers Generate IRQ1 – IRQ15 on Serial IRQ
Interface.
XOR-Chain Board Test
128 Pin MQFP Package, 3.2 mm Footprint
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