مدار مجتمع (آی سی) آی سی‌کاربرد ویژه

Product Attributes

Introduction

The 82370 is a multi-function support peripheral that integrates system functions necessary in an 80376 environment. It has eight channels of high performance 32-bit DMA (32-bit internal, 16-bit external) with the most efficient transfer rates possible on the 80376 bus. System support peripherals integrated into the 82370 provide Interrupt Control, Timers, Wait State generation, DRAM Refresh Control, and System Reset logic. The 82370's DMA Controller can transfer data between devices of different data path widths using a single channel. Each DMA channel operates independently in any of several modes. Each channel has a temporary data storage register for handling non-aligned data without the need for external alignment logic.

Features

• High Performance 32-Bit DMA Controller for 16-Bit Bus
• 16 MBytes/Sec Maximum Data Transfer Rate at 16 MHz
• 8 Independently Programmable Channels
• Individually Programmable Interrupt Vectors
• 15 External, 5 Internal Interrupts
• 82C59A Superset
• Four 16-Bit Programmable Interval Timers
• 82C54 Compatible
• Software Compatible to 82380
• Programmable Wait State Generator
• 0 to 15 Wait States Pipelined
• 1 to 16 Wait States Non-Pipelined
• DRAM Refresh Controller
• 80376 Shutdown Detect and Reset Control
• Software/Hardware Reset
• High Speed CHMOS IlI Technology
• 100-Pin Plastic Quad Flat-Pack Package and 132-Pin Pin Grid Array Package
• Optimized for Use with the 80376 Microprocessor
• Resides on Local Bus for Maximum Bus Bandwidth
• 16 MHz Clock