82371AB Datasheet | Intel Corporation

82371AB PCI-TO-ISA / IDE XCELERATOR (PIIX4) ® Supported Kits for both Pentium and ® Pentium II Microprocessors  82430TX ISA Kit  82440LX ISA/DP Kit Multifunction PCI to ISA Bridge  Supports PCI at 30 MHz and 33 MHz  Supports PCI Rev 2.1 Specification  Supports Full ISA or Extended I/O (EIO) Bus  Supports Full Positive Decode or Subtractive Decode of PCI  Supports ISA and EIO at 1/4 of PCI Frequency Supports both Mobile and Desktop Deep Green Environments  3.3V Operation with 5V Tolerant Buffers  Ultra-low Power for Mobile Environments Support  Power-On Suspend, Suspend to RAM, Suspend to Disk, and Soft OFF System States  All Registers Readable and Restorable for Proper Resume from 0.V Suspend Power Management Logic  Global and Local Device Management  Suspend and Resume Logic  Supports Thermal Alarm  Support for External Microcontroller  Full Support for Advanced Configuration and Power Interface (ACPI) Revision 1.0 Specification and OS Directed Power Management Integrated IDE Controller  Independent Timing of up to 4 Drives  PIO Mode 4 and Bus Master IDE Transfers up to 14 Mbytes/sec  Supports “Ultra DMA/33” Synchronous DMA Mode Transfers up to 33 Mbytes/sec © INTEL CORPORATION 1997 April 1997  Integrated 16 x 32-bit Buffer for IDE PCI Burst Transfers  Supports Glue-less “Swap-Bay” Option with Full Electrical Isolation Enhanced DMA Controller  Two 82C37 DMA Controllers  Supports PCI DMA with 3 PC/PCI Channels and Distributed DMA Protocols (Simultaneously)  Fast Type-F DMA for Reduced PCI Bus Usage Interrupt Controller Based on Two 82C59  15 Interrupt Support  Independently Programmable for Edge/Level Sensitivity  Supports Optional I/O APIC  Serial Interrupt Input Timers Based on 82C54  System Timer, Refresh Request, Speaker Tone Output USB  Two USB 1.0 Ports for Serial Transfers at 12 or 1.5 Mbit/sec  Supports Legacy Keyboard and Mouse Software with USB-based Keyboard and Mouse  Supports UHCI Design Guide SMBus  Host Interface...