Datasheet Details
| Part number | 82C621A |
|---|---|
| Manufacturer | OPTi |
| File Size | 1.04 MB |
| Description | PCI IDE Controller |
| Datasheet |
 82C621A Datasheet
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General Description
Figure 3-1 Pin Diagram
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a:: rn
!c- -z
Key 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 cycles to run concurrently with IDE cycles and also removes the synchronization penalty for AT-bus transfers. IDE cycles can be fine tuned by the ANSI Mode strap options or programmable registers for A.