I82371MX Datasheet, PDF(1/133 Page) Intel Corporation – INTEL 430MX PCISET 82371MX MOBILE PCI I/O IDE XCELERATOR (MPIIX)

English

English German Russian Spanish Italian Polish Chinese Japanese Korean French Portuguese	Language :

I82371MX Datasheet, PDF (1/133 Pages) Intel Corporation – INTEL 430MX PCISET 82371MX MOBILE PCI I/O IDE XCELERATOR (MPIIX)

PRELIMINARY

INTEL 430MX PCISET

82371MX MOBILE PCI I/O IDE XCELERATOR (MPIIX)

Provides a Bridge Between the PCI Bus

and Extended I/O Bus

ï£§ PCI Bus; 25â33 MHz

ï£§ Extended I/O Bus; 7.5â8.33 MHz

System Power Management (Intel SMM

Support)

ï£§ Programmable System Management

Interrupt (SMI)âHardware/Software

Events, EXTSMI#

ï£§ Programmable CPU Clock Control

(STPCLK#) with Auto Clock Throttle

ï£§ Peripheral Device Power

Management (Local Standby)

ï£§ Suspend State Support (Suspend-to-

DRAM and Suspend-to-Disk)

Enhanced DMA Functions

ï£§ Two 8237 DMA Controllers

ï£§ Fast Type F DMA

ï£§ Compatible DMA Transfers

ï£§ PC/PCI DMA Expansion for Docking

Support

Fast IDE Interface

ï£§ PIO Mode 4 Transfers

ï£§ 2x16-Bit Posted Write Buffer and

1x32-Bit Read Prefetch Buffer

Plug-n-Play Port for Motherboard

Devices

ï£§ 3 Steerable DMA Channels

ï£§ 1 Steerable Interrupt Line (Plus 2

Steerable PCI Interrupts)

ï£§ 1 Programmable Chip Select

Functionality of One 82C54 Timer

ï£§ System Timer

ï£§ Refresh Request

ï£§ Speaker Tone Output

Functionality of Two 82C59 Interrupt

Controllers

ï£§ 14 Interrupts Supported

ï£§ Independently Programmable for

Edge/Level Sensitivity

X-Bus Peripheral Support

ï£§ Chip Select Decode

ï£§ Controls Lower X-Bus Data Byte

Transceiver

Non-Maskable Interrupts (NMI)

ï£§ PCI System Error Reporting

NAND Tree for Board-Level ATE Testing

176-Pin TQFP

The 82371MX PCI I/O IDE Xcelerator (MPIIX) provides the bridge between the PCI bus and the ISA-like

Extended I/O expansion bus. In addition, the 82371MX has an IDE interface that supports two IDE devices

providing an interface for IDE hard disks and CD ROMs. The MPIIX integrates many common I/O functions

found in ISA based PC systemsâa seven-channel DMA controller, two 82C59 interrupt controllers, an 8254

timer/counter, Intel SMM power management support, and control logic for NMI generation. Chip select decoding

is provided for BIOS, real time clock, and keyboard controller. Edge/Level interrupts and interrupt steering are

supported for PCI plug and play compatibility.

The MPIIX also provides the Extended I/O Bus for a direct connection to Super I/O devices providing a complete

PC-compatible I/O solution. MPIIX also provides support for the âMobile PC/PCIâ DMA Expansion protocol that

enables the implementation of Docking Stations with full ISA and PCI capability without running the full ISA bus

across the docking connector. For motherboard Plug-n-Play compatibility, the 82371MX also provides three

steerable DMA channels, up to three steerable interrupt lines, and a programmable chip select. The interrupt

lines can be routed to any of the available ISA interrupts.

The MPIIXâs power management function supports SMI# interrupt sources, extensive clock control (including

Auto Clock Throttling), peripheral power idle detection with access traps, system Suspend-to-DRAM and

Suspend-to-Disk.

*Other brands and names are the property of their respective owners.

Information in this document is provided in connection with Intel products. Intel assumes no liability whatsoever, including infringement of any patent or copyright,

for sale and use of Intel products except as provided in Intel's Terms and Conditions of Sale for such products. Intel retains the right to make changes to those

specifications at any time, without notice. Microcomputer Products may have minor variations to this specification known as errata.

April 1996

Order Number: 290525-001

▷