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參數(shù)資料
| 型號(hào)： | PC87200 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | PCI to ISA Bridge(PCI到ISA的橋) |
| 中文描述： | 的PCI到ISA橋（的PCI到的ISA的橋） |
| 文件頁(yè)數(shù)： | 1/33頁(yè) |
| 文件大?。?/td> | 114K |
| 代理商： | PC87200 |
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P
1999 National Semiconductor Corporation
www.national.com
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.
2.0 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
2.2 PCI-to-ISA Bridge
– PCI 2.1 compliant 33 MHz bus
– Supports PCI initiator-to-ISA and ISA master-to-PCI
cycle translations
– Subtractiveagentforunclaimedtransactions(seethe
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
2.3 "PROHIBIT" functional support
– Disables PCI bus subtractive decoding when PRO-
HIBIT is asserted
Block Diagram
X-Bus
ISA Bus
PCI Bus
PCI to X-Bus / X-Bus to PCI Bridge
PCI Configuration
Registers
Decoding logic
X-Bus Arbiter
PC87200 Support
Serial IRQ Slave
mode interface logic
Serialized IRQ
Interface
PC/PCI DMA
Interface
ISA bus Target
Interface
ISA bus Master
Interface
PCPCIREQ#
PCPCIGNT#
BPD#
PROHIBIT
TRI-STATE is a registered trademark of National Semiconductor Corporation.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PC87200160A | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:PC87200 PCI to ISA Bridge |
| PC87200-160A | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCI Bus Interface/Controller |
| PC87200VUL | 制造商:Nuvoton Technology Corp 功能描述:PCI to ISA Bridge 160-Pin PQFP |
| PC87200VUL NOPB | 制造商:Nuvoton Technology Corp 功能描述:PCI TO ISA BRIDGE |
| PC87200VUL/NOPB | 制造商:Texas Instruments 功能描述: |
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