LPC47N227-MV

GENERAL DESCRIPTION

The SMSC LPC47N227 is a 3.3V PC 99 and ACPI 1.0b compliant Super I/O Controller. The LPC47N227 implements the LPC interface, a pin reduced ISA interface which provides the same or better performance as the ISA/X-bus with a substantial savings in pins used. The part also includes 29 GPIO pins.

FEATURES

■ 3.3 Volt Operation (5V Tolerant)
■ PC99 and ACPI 1.0b Compliant
■ Programmable Wakeup Event Interface (nIO_PME Pin)
■ SMI Support (nIO_SMI Pin)
■ GPIOs (29)
■ Two IRQ Input Pins
■ XNOR Chain
■ Intelligent Auto Power Management
■ 2.88MB Super I/O Floppy Disk Controller
- Licensed CMOS 765B Floppy Disk Controller
- Software and Register Compatible with
SMSCs Proprietary 82077AA Compatible
Core
- Supports One Floppy Drive Directly
- 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
- Swap Drives A and B
- Non-Burst Mode DMA Option
- 48 Base I/O Address, 15 IRQ and 3 DMA
Options
- Forceable Write Protect and Disk Change
Controls
■ Floppy Disk Available on Parallel Port Pins (ACPI Compliant)
■ Enhanced Digital Data Separator
- 2 Mbps, 1 Mbps, 500 Kbps, 300 Kbps, 250
Kbps Data Rates
- Programmable Precompensation Modes
■ Serial Ports
- Two Full Function Serial Ports
- High Speed NS16C550 Compatible UARTs
with Send/Receive 16-Byte FIFOs
- Supports 230k and 460k Baud
- Programmable Baud Rate Generator
- Modem Control Circuitry
■ Infrared Communications Controller
- IrDA v1.2 (4Mbps), HPSIR, ASKIR, Consumer
IR Support
- 2 IR Ports
- 96 Base I/O Address, 15 IRQ Options and 3
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 Against
Damage Due to Printer Power-On
- 192 Base I/O Address, 15 IRQ and 3 DMA
Options
■ LPC Bus Host Interface
- Multiplexed Command, Address and Data Bus
- 8-Bit I/O Transfers
- 8-Bit DMA Transfers
- 16-Bit Address Qualification
- Serial IRQ Interface Compatible with
Serialized IRQ Support for PCI Systems
- PCI nCLKRUN Support
- Power Management Event (nIO_PME)
Interface Pin
■ 100 Pin TQN, lead-free RoHS compliant package
and 100 Pin STQN, lead-free RoHS compliant
package