Description:

82308 Micro Channel Bus Controller Overview

The 82308 Micro Channel Bus Controller is the complementary device to the 82309 Address Bus Controller. It is designed to facilitate data transfers between the Microprocessor, DMA, Memory and Micro Channel bus. It generates the appropriate data conversion and alignment control Signals to implement an extemal byte swap mechanism for transferring data of equal and different widths.

The 82308 Bus Controller generates all control signals necessary to run Micro Channel Memory and 1/0 Bus cycles for both 80386 and 80386SX processors.

To implement the highest performance 80386 based system with the 82385 cache controller, the Bus Controller features special cache hardware interface signals.

82308 Features

• Micro Channel Compatible Bus Control
• Supports 8-,16- or 32-81t Data Transfers on the Micro Channel
• Optional Hardware Enforced I/O Recovery Mechanism
• Cache Controller (82385) Interface to Maximize Performance for 80386 Based Systems
• Low Power CHMOS Technology
• 100-Pin Plastcc Quad Flat Pack Packaging

(See Packaging Spec., Order # 231369)