M82510 Datasheet, PDF (1/40 Pages) Intel Corporation – ASYNCHRONOUS SERIAL CONTROLLER

M82510
ASYNCHRONOUS SERIAL CONTROLLER
Military
Y Asynchronous Operation
5- to 9-Bit Character Format
Baud Rate DC to 288k
Complete Error Detection
Y Multiple Sampling Windows
Y Two Independent Four-Byte Transmit
and Receive FIFOs
Programmable Threshold
Y Two 16-bit Baud Rate Generators
Timers
Y System Clock Options
On-Chip Crystal Oscillator
External Clocks
Y MCS -51 9-Bit Protocol Support
Y Control Character Recognition
Y CHMOS III with Power Down Mode
Y Interrupts Maskable at Two Levels
Y Auto Echo and Loopback Modes
Y Seven I O Pins Dedicated and General
Purpose
Y Available in 28-Lead CERDIP and
28-Pad LCC Packages
Y Military Temperature Range
b_{55 C to} a_{125 C (TC)}
The Intel CHMOS M82510 is designed to increase system efficiency in asynchronous environments such as
modems serial ports including expanding performance areas MCS -51 9-bit format and high speed async
The functional support provided in the M82510 is unparalleled 2 baud rate generators timers provide inde-
pendent data rates or protocol timeouts a crystal oscillator and smart modem I O simplify system logic New
features dual FIFOs and Control Character Recognition (CCR) dramatically reduce CPU interrupts and in-
crease software efficiency The M82510’s software versatility allows emulation of the INS 8250A 16450 for
IBM PC AT compatibility or a high performance mode configured by 35 control registers All interrupts are
maskable at 2 levels The multi-personality I O pins are configurable as desired A DPLL and multiple sampling
of serial data improve data reliability for high speed asynchronous communication The compact 28-pin
M82510 is fabricated in CHMOS III technology and includes a software powerdown option
IBM and PC AT are registered trademarks of IBM Corporation
Figure 1 Block Diagram
271072 – 1
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changes to these specifications at any time without notice Microcomputer Products may have minor variations to this specification known as errata
COPYRIGHT INTEL CORPORATION 1996
March 1996
Order Number 271072-007