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PC87200 - PC87200 PCI to ISA Bridge

General Description

The PC87200 Enhanced Integrated PCI-to-ISA bridge works with an LPC chipset to provide ISA slot support.

It is a complement to the National Semiconductor PC8736x Super I/O family.

PCI 2.1 compliant 33 MHz bus Supports PCI initiator-to-ISA and ISA master-to-

Key Features

  • 2.1 General.
  • Functionally compatible with Intel 82380AB.
  • 5.0 V tolerant PCI and ISA interfaces.
  • Slave mode serialized IRQ support for both quiet and continuous modes.
  • PC/PCI DMA support.
  • 32-bit address decode for the 1MB BIOS ROM.
  • Supports ISA bus mastering.
  • 160-pin PQFP package 2.3 ".

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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PC87200 PCI to ISA Bridge August 1999 PC87200 PCI to ISA Bridge 1.0 General Description The PC87200 Enhanced Integrated PCI-to-ISA bridge works with an LPC chipset to provide ISA slot support. It is a complement to the National Semiconductor PC8736x Super I/O family. 2.2 PCI-to-ISA Bridge – PCI 2.1 compliant 33 MHz bus – Supports PCI initiator-to-ISA and ISA master-to-PCI cycle translations – Subtractive agent for unclaimed transactions (see the PROHIBIT signal description for exceptions) – Parallel to Serial IRQ conversion including IRQ3,4,5,6,7,9,10,11,12,14,15 – Supports 4 ISA slots directly without buffering – Programmable ISA clock (8.33 to 11 MHz) – Slow slew rate on edges 2.0 Features 2.1 General – Functionally compatible with Intel 82380AB – 5.