LPC47B34X Ver la hoja de datos (PDF) - SMSC -> Microchip

Número de pieza

componentes Descripción

Lista de partido

LPC47B34X

128 Pin Enhanced Super I/O with LPC Interface for Consumer Applications

SMSC -> Microchip 

- Fast Gate A20 and KRESET Outputs

• 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

- 480 Address and 15 IRQ Options

- IrDA 1.0, HP-SIR, ASK IR Support

• 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

- 480 Address, up to 15 IRQ and 3 DMA

Options

• LPC Bus (Pin Reduced ISA) 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

- Power Management Event (nIO_PME)

Interface Pin

• 128 Pin QFP Package

GENERAL DESCRIPTION

The LPC47B34x* is a 3.3V PC99 compliant

Super I/O controller. The LPC47B34x

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 provides 62

GPIO pins and ISA IRQ to serial IRQ

conversion.

The LPC47B34x incorporates a keyboard

interface, SMSC's true CMOS 765B floppy disk

controller, advanced digital data separator, two

16C550 compatible UARTs, one Multi-Mode

parallel port which includes ChiProtect circuitry

plus EPP and ECP, and Intelligent Power

Management. The true CMOS 765B core

provides 100% compatibility with IBM PC/XT

and PC/AT architectures in addition to providing

data overflow and underflow protection. The

SMSC advanced digital data separator

incorporates SMSC's patented data separator

technology, allowing for ease of testing and use.

The on-chip UARTs are compatible with the

NS16C550. The parallel port is compatible with

IBM PC/AT architecture, as well as IEEE 1284

EPP and ECP. The LPC47B34x incorporates

sophisticated power control circuitry (PCC). The

PCC supports multiple low power down modes.

The LPC47B34x supports the ISA Plug-and-Play

Standard (Version 1.0a) and provides the

recommended functionality to support Windows

'95/‘98 and PC99. The I/O Address, DMA

Channel and Hardware IRQ of each logical

device in the LPC47B34x may be

reprogrammed through the internal

configuration registers. There are 480 I/O

address location options, a Serialized IRQ

interface, and three DMA channels.

Standard Microsystems is a registered trademark and

SMSC is a trademark of Standard Microsystems

Corporation. Other product and company names are

trademarks or registered trademarks of their respective

holders.

*The “x” in the part number is a designator that changes depending upon the particular BIOS used

inside the specific chip.

2

Share Link: