LPC47U33x
100 Pin Enhanced Super I/O for LPC Bus with
Consumer Features and SMBus Controller
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FEATURES
3.3 Volt Operation (5V Tolerant)
LPC Interface
Floppy Disk Controller (Supports 2 FDCs)
Multi-Mode Parallel Port
One Full Function UART
MPU-401 MIDI UART
8042 Keyboard Controller
Dual Game Port
SMBus Controller
Programmable Wakeup Event Interface
(nIO_PME Pin)
SMI Support (nIO_SMI Pin)
GPIO Pins (37)
Fan Speed Control Output
Fan Tachometer Input
ISA IRQ to Serial IRQ Conversion
XNOR Chain
PC99 and ACPI 1.0 Compliant
ISA Plug-and-Play Compatible Register Set
Intelligent Auto Power Management
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
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
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Modes for Reduced Power
Consumption
DMA Enable Logic
Data Rate and Drive Control Registers
480 Address, up to 15 IRQ and 3 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 Port
One Full Function Serial Port
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
Second UART for MPU-401 MIDI
Interface
