Intel ESM-2740 用户手册

下载
页码 93
User’s Manual 
 
ESM-2740/2743 User’s Manual
  21
 
1.6.11 
Winbond W83628F & W83629D PCI/ISA Bridge 
W83628F is a PCI-to-ISA bus conversion IC. W83629D (45-LQF) is a condensed 
centralizer IC for IRQ and DMA control. W83628F (128-QFP) and W83629D together form 
a complete set for the PCI-to-ISA bridge. 
•  Full ISA Bus Support including ISA Masters 
•  5V ISA and 3.3V PCI interfaces 
•  PC/PCI DMA protocol for Software Transparent 
•  IRQ Serializer for ISA Parallel IRQ transfer to Serial IRQ 
•  Supports 3 fully ISA Compatible Slots without Buffering 
•  PCI Bus at 25MHz, 33MHz and up to 40MHz 
•  Supports Programmable ISA Bus Divide the PCI Bus Clock into 3 or 4 
•  All ISA Signals can be Isolate 
•  Supports Configuration registers for programming performance