82C621A - PCI IDE Controller

Product Overview

Part number	82C621A
Manufacturer	OPTi
File Size	1.04 MB
Description	PCI IDE Controller
Datasheet	82C621A Datasheet
Additional preview pages of the 82C621A datasheet.

Figure 3-1 Pin Diagram .~ a:: rn !c- -z

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.

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Published: Jan 29, 2025 |