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M82380 数据表(PDF) 1 Page - Intel Corporation

部件名 M82380
功能描述  HIGH PERFORMANCE 32-BIT DMA CONTROLLER WITH INTEGRATED SYSTEM SUPPORT PERIPHERALS
Download  134 Pages
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制造商  INTEL [Intel Corporation]
网页  http://www.intel.com
标志 INTEL - Intel Corporation

M82380 数据表(HTML) 1 Page - Intel Corporation

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November 1992
Order Number 271070-006
M82380
HIGH PERFORMANCE 32-BIT DMA CONTROLLER WITH
INTEGRATED SYSTEM SUPPORT PERIPHERALS
Y
High Performance 32-Bit DMA
Controller
40 Mbytessec Maximum Data
Transfer Rate at 20 MHz
8 Independently Programmable
Channels
Y
20-Source Interrupt Controller
Individually Programmable Interrupt
Vectors
15 External 5 Internal Interrupts
M8259A Superset
Y
Four 16-Bit Programmable Interval
Timers
M82C54 Compatible
Y
Programmable Wait State Generator
0 to 15 Wait States Pipelined
1 to 16 Wait States Non-Pipelined
Y
DRAM Refresh Controller
Y
i386TM Processor Shutdown Detect and
Reset Control
SoftwareHardware Reset
Y
High Speed CHMOS III Technology
Y
132-Pin PGA Package and 164-Pin Quad
Flat Pack
(See Packaging Specification Order
231369)
Y
Optimized for use with the i386TM
Microprocessor
Resides on Local Bus for Maximum
Bus Bandwidth
Y
Available in Three Product Grades
MIL-STD-883 b55 Cto a125 C(TC)
Military Temperature Only
b
55 Cto a125 C(TC)
Extended Temperature
b
40 Cto a110 C(TC)
The M82380 is a multi-function support peripheral that integrates system functions necessary in an i386
processor environment It has eight channels of high performance 32-bit DMA with the most efficient transfer
rates possible on the i386 microprocessor bus System support peripherals integrated into the M82380 provide
Interrupt Control Timers Wait State generation DRAM Refresh Control and System Reset logic
The M82380’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
271070 – 1
M82380 Internal Block Diagram


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