Intel 430MX PCIset - 82371MX Mobile PCI I/O IDE Xcelerator (MPIIX)

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 systems--a seven-channel DMA controller, two 82C59 interrupt controllers, and 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. This document contains an architecture overview, register descriptions, functional descriptions, pinout and package information, and testability information for the MPIIX.

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