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器件描述：82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR
器件厂商：INTEL [Intel Corporation]
厂商主页：http://www.intel.com/
文件大小：751.28KB
文件页数：122
PDF阅读：82371FB.pdf (点击阅读器件资料)
摘要：
E
? INTEL CORPORATION 1996, 1997 April 1997 Order Number: 290550-002
c110 Bridge Between the PCI Bus and ISA Bus
c110 PCI and ISA Master/Slave Interface
? PCI from 25–33 MHz
? ISA from 7.5–8.33 MHz
? 5 ISA Slots
c110 Fast IDE Interface
? Supports PIO and Bus Master IDE
? Supports up to Mode 4 Timings
? Transfer Rates to 22 MB/Sec
? 8 x 32-Bit Buffer for Bus Master IDE PCI
Burst Transfers
? Separate Master/Slave IDE Mode
Support (PIIX3)
c110 Plug-n-Play Port for Motherboard Devices
? 2 Steerable DMA Channels (PIIX Only)
? Fast DMA with 4-Byte Buffer (PIIX Only)
? 2 Steerable Interrupts Lines on the PIIX
and 1 Steerable Interrupt Line on the
PIIX3
? 1 Programmable Chip Select
c110 Steerable PCI Interrupts for PCI Device Plug-
n-Play
c110 PCI Specification Revision 2.1 Compliant
(PIIX3)
c110 Functionality of One 82C54 Timer
? System Timer; Refresh Request;
Speaker Tone Output
c110 Two 82C59 Interrupt Controller Functions
? 14 Interrupts Supported
? Independently Programmable for
Edge/Level Sensitivity
c110 Enhanced DMA Functions
? Two 8237 DMA Controllers
? Fast Type F DMA
? Compatible DMA Transfers
? 7 Independently Programmable
Channels
c110 X-Bus Peripheral Support
? Chip Select Decode
? Controls Lower X-Bus Data Byte
Transceiver
c110 I/O Advanced Programmable Interrupt
Controller (IOAPIC) Support (PIIX3)
c110 Universal Serial Bus (USB) Host Controller
(PIIX3)
? Compatible with Universal Host
Controller Interface (UHCI)
? Contains Root Hub with 2 USB Ports
c110 System Power Management (Intel SMM
Support)
? Programmable System Management
Interrupt (SMI)—Hardware Events,
Software Events, EXTSMI#
? Programmable CPU Clock Control
(STPCLK#)
? Fast On/Off Mode
c110 Non-Maskable Interrupts (NMI)
? PCI System Error Reporting
c110 NAND Tree for Board-Level ATE Testing
c110 208-Pin QFP
The 82371FB (PIIX) and 82371SB (PIIX3) PCI ISA IDE Xcelerators are multi-function PCI devices
implementing a PCI-to-ISA bridge function and an PCI IDE function. In addition, the PIIX3 implements a
Universal Serial Bus host/hub function. As a PCI-to-ISA bridge, the PIIX/PIIX3 integrates many common I/O
functions found in ISA-based PC systems—a seven-channel DMA controller, two 82C59 interrupt controllers,
an 8254 timer/counter, and power management support. In addition to compatible transfers, each DMA
channel supports type F transfers. 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
PIIX/PIIX3 supports two IDE connectors for up to four IDE devices providing an interface for IDE hard disks
and CD ROMs. The PIIX/PIIX3 provides motherboard plug and play compatibility. PIIX implements two
steerable DMA channels (including type F transfers) and up to two steerable interrupt lines. PIIX3 implements
one steerable interrupt line. The interrupt lines can be routed to any of the available ISA interrupts. Both
PIIX/PIIX3 implement a programmable chip select.
PIIX3 contains a Universal Serial Bus (USB) Host Controller that is UHCI compatible. The Host Controller’s
root hub has two programmable USB ports. PIIX3 also provides support for an external IOAPIC.
This document describes the PIIX3 Component. Unshaded areas describe the 82371FB PIIX. Shaded areas,
like this one, describe the PIIX3 operations that differ from the 82371FB PIIX.
82371FB (PIIX) AND 82371SB (PIIX3)
PCI ISA IDE XCELERATOR
相关器件：82371SB
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