Datasheet Summary
82378ZB SYSTEM I/O (SIO) AND 82379AB SYSTEM I/O APIC (SIO.A)
Four Dedicated PCI Interrupts
Level Sensitive Mapped to Any Unused Interrupt
Provides the Bridge Between the PCI Bus and ISA Bus 100% PCI and ISA patible PCI and ISA Master/Slave Interface Directly Drives 10 PCI Loads and 6 ISA Slots PCI at 25 MHz and 33 MHz ISA from 6 MHz to 8.33 MHz Enhanced DMA Functions Scatter/Gather (S/G) (82378ZB) Fast DMA Type A, B and F (82378ZB) patible DMA Transfers 32-bit Addressability(82378ZB) 27-bit Addressability(82379AB) Seven Independently Programmable Channels Functionality of Two 82C37A DMA Controllers Data Buffers to Improve Performance 8-Byte DMA/ISA...