SMSC - LPC47M172 - Advanced I/O Controller with Motherboard GLUE Logic

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LPC47M172

Advanced I/O Controller with Motherboard GLUE Logic

Note: The LPC47M172 is not recommended for new designs. The LPC47M182 is the suggested replacement device for this product.

Features

3.3 Volt Operation (5 Volt 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 NS16C550 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 Bidirectional 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 Lead-free RoHS Compliant Package, 3.2 mm Footprint

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