82371FB Datasheet | Intel Corporation

E n n n n 82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR n Enhanced DMA Functions  Two 8237 DMA Controllers  Fast Type F DMA  patible DMA Transfers  7 Independently Programmable Channels X-Bus Peripheral Support  Chip Select Decode  Controls Lower X-Bus Data Byte Transceiver I/O Advanced Programmable Interrupt Controller (IOAPIC) Support (PIIX3) Universal Serial Bus (USB) Host Controller (PIIX3)  patible with Universal Host Controller Interface (UHCI)  Contains Root Hub with 2 USB Ports 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 Non-Maskable Interrupts (NMI)  PCI System Error Reporting NAND Tree for Board-Level ATE Testing 208-Pin QFP n n n n Bridge Between the PCI Bus and ISA Bus PCI and ISA Master/Slave Interface  PCI from 25- 33 MHz  ISA from 7.5- 8.33 MHz  5 ISA Slots 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) 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 Steerable PCI Interrupts for PCI Device Plugn-Play PCI Specification Revision 2.1 pliant (PIIX3) Functionality of One 82C54 Timer  System Timer; Refresh Request; Speaker Tone Output Two 82C59 Interrupt Controller Functions  14 Interrupts Supported  Independently Programmable for Edge/Level Sensitivity n n n n n n n 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...