FDC37B72X(1999) Ver la hoja de datos (PDF) - SMSC -> Microchip

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FDC37B72X
(Rev.:1999)

128 Pin Enhanced Super I/O Controller with ACPI Support

SMSC -> Microchip 

GENERAL DESCRIPTION

The FDC37B72x incorporates a keyboard

interface, SMSC's true CMOS 765B floppy disk

controller, advanced digital data separator, 16

byte data FIFO, two 16C550 compatible UARTs,

one Multi-Mode parallel port which includes

ChiProtect circuitry plus EPP and ECP support,

on-chip 12 mA AT bus drivers, and two floppy

direct drive support, soft power management

and SMI support and Intelligent Power

Management including PME and SCI/ACPI

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 NS16C550.

The parallel port is compatible with IBM PC/AT

architecture, as well as EPP and ECP. The

FDC37B72x incorporates sophisticated power

control circuitry (PCC) which includes support

for keyboard, mouse, modem ring, power button

support and other wake-up events. The PCC

supports multiple low power down modes.

These features include support of both legacy

and ACPI power management models through

the selection of SMI or SCI. It implements a

power button override event (4 second button

hold to turn off the system) and either edge

triggered interrupts.

The FDC37B72x provides support for the ISA

Plug-and-Play Standard (Version 1.0a) and

provides for the recommended functionality to

support Windows '95/’98 and PC98/PC99.

Through internal configuration registers, each of

the FDC37B72x's logical device's I/O address,

DMA channel and IRQ channel may be

programmed. There are 480 I/O address

location options, 12 IRQ pin options or Serial

IRQ option, and four DMA channel options for

each logical device.

The FDC37B72x Floppy Disk Controller and

data separator do not require any external filter

components and are therefore easy to use, offer

lower system cost and reduced board area. The

FDC is software and register compatible with

SMSC's proprietary 82077AA core.

The FDC37B72x provides features for

compliance with the “Advanced Configuration

and Power Interface Specification” (ACPI).

IBM, PC/XT and PC/AT are registered trademarks and PS/2 is a trademark

of International Business Machines Corporation

SMSC is a registered trademark and Ultra I/O, ChiProtect, and Multi-Mode

are trademarks of Standard Microsystems Corporation

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