FDC37M81 View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37M81

PC98/99 Compliant Enhanced Super I/O Controller with Keyboard/Mouse Wake-Up

SMSC -> Microchip 

!" 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

Three DMA Options

!" ISA Host Interface

- 16 Bit Address Qualification

- 8 Bit Data Bus

- IOCHRDY for ECP and IrCC

- Three 8 Bit DMA Channels

- Serial IRQ Interface Compatible with

Serialized IRQ Support for PCI Systems

- PME Interface

!" 100 Pin QFP Package

GENERAL DESCRIPTION

The FDC37M81x* with IrDA v1.0 support

incorporates a keyboard interface, SMSC's true

CMOS 765B floppy disk controller, advanced

digital data separator, two 16C550A compatible

UARTs, one Multi-Mode parallel port which

includes ChiProtect circuitry plus EPP and ECP,

on-chip 12 mA AT bus drivers, one floppy direct

drive support, and Intelligent Power

Management including PME support. 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. Both on-chip UARTs

are compatible with the NS16C550A. The

parallel port is compatible with IBM PC/AT

architecture, as well as IEEE 1284 EPP and

ECP. The FDC37M81x incorporates

sophisticated power control circuitry (PCC)

which includes support for keyboard, mouse,

and modem ring wake-up events. The PCC

supports multiple low power-down modes.

The FDC37M81x supports the ISA Plug-and-

Play Standard (Version 1.0a) and provides the

recommended functionality to support Windows

'95/’98. The I/O Address, DMA Channel and

hardware IRQ of each logical device in the

FDC37M81x may be reprogrammed through the

internal configuration registers. There are 480

I/O address location options, a Serialized IRQ

interface, and three DMA channels.

The FDC37M81x does not require any external

filter components and is therefore easy to use

and offers lower system costs and reduced

board area. The FDC37M81x is software and

register compatible with SMSC's proprietary

82077AA core.

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

the specific chip. “2” denotes AMI Keyboard BIOS and “7” denotes Phoenix 42i Keyboard BIOS.

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