[VIA Technologies, Inc.]

PC98 COMPLIANT PCI-TO-ISA BRIDGE WITH ACPI, ENHANCED POWER MANAGEMENT, SMBUS, APIC, DISTRIBUTED DMA, SERIAL IRQ, PLUG AND PLAY, ULTRADMA-33/66 MASTER MODE PCI-EIDE CONTROLLER, USB CONTROLLER, KEYBOARD CONTROLLER, AND RTC

• Inter-operable with VIA and other Host-to-PCI Bridges

− Combine with VT82C598 (Apollo MVP3) for a complete 66 / 75 / 83 / 100MHz Socket-7 PCI / AGP / ISA system

− Combine with VT82C693 (Apollo ProPlus) for a complete 66 / 100 MHz Socket-370 or Slot-1 PCI / ISA system

− Combine with VT82C693A (Apollo Pro133) for a complete 66 / 100 / 133 MHz Skt-370 or Slot-1 PCI / ISA system

• PC98 Compliant PCI to ISA Bridge

− Integrated ISA Bus Controller with integrated DMA, timer, and interrupt controller

− Integrated Keyboard Controller with PS2 mouse support

− Integrated DS12885-style Real Time Clock with extended 256 byte CMOS RAM and Day/Month Alarm for ACPI

− Integrated USB Controller with root hub and two function ports

− Integrated UltraDMA-33/66 master mode EIDE controller with enhanced PCI bus commands

− PCI-2.1 compliant with delay transaction

− Eight double-word line buffer between PCI and ISA bus

− One-level PCI to ISA post-write buffer

− Supports type F DMA transfers

− Distributed DMA support for ISA legacy DMA across the PCI bus

− Sideband signal support for PC/PCI and serial interrupt for docking and non-docking applications

− Serial Interrupt input

− Fast reset and Gate A20 operation

− Edge trigger or level-sensitive interrupts

− Flash EPROM, 2Mb EPROM and combined BIOS support

− Supports positive and subtractive decoding

• Universal Serial Bus Controller

− USB v.1.1 and Intel Universal HCI v.1.1 compatible

− Eighteen level (doublewords) data FIFO with full scatter / gather capabilities

− Root hub and two function ports

− Integrated physical layer transceivers with over-current detection status on USB inputs

− Legacy keyboard and PS/2 mouse support

• Advanced Programmable Interrupt Controller (APIC)

− Integrated on-chip

− Control pins provided for support of optional external APIC

− Used to extend system interrupt capability

− PC98 compliant

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