PC87410 - National Semiconductor

PC87410 PC87410 PCI-IDE Interface Controller

The PCI-IDE Interface Controller is designed to interface the IDE drive directly onto the PCI bus It provides write posting and read pre-fetches allowing the CPU to run concurrently with IDE cycles It connects IDE drIves ‘‘gluelessly’’ into the PCI bus and supports faster ATA devices using modes 1 2 and 3 through PIO accesses It supports dual IDE channels fo.

Features

Y Y Y Y Fully compatible with PCI specifications rev 2 0 (April 1993) Programmable Base Address registers Interfaces with the 32 bits PCI local bus to IDE drives Support IDE PIO timing mode 0 1 2 of ANSI ATA specifications Y Y Y Support Mode 3 (11 MB s) timing proposal on enhanced IDE (IDE-2 or ATA-2) specifications Two IDE-2 channel supported (each channel supports 2 devices) Supports primary IDE or secondary IDE address 16-Byte FIFO provide 4-level Posted Write and Read ahead buffers per channel for concurrent system operation Programmable command and recovery timing for reads and writes .