82C621A - PCI IDE Controller
The 82C621A implements a PCI function to directly support both the Primary and Secondary IDE in a single 100-pin PQFP.
This high-integration approach reduces component count, eases board design, reduces cost and increases reliability.
An integrated 4-level read-prefetch FIFO and a 4-level posted write F
82C621A Features
* Supports 32-bit PCI Bus & Configuration Registers 100-pin PQFP Supports 4 ATA peripherals Optional PCI Expansion ROM support 16-byte Read-Prefetch and Write-Posting FIFO IDE timing controlled by either Straps or Registers 2.1 Special Feature Notes Write Posting and Read-prefetch allows CPU memory c