SMSC LPC47M997
Page 1
Rev.
01-12-07
PRODUCT PREVIEW
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
−
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
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
