SERCON816 datasheet(1/23 Pages) STMICROELECTRONICS

部件名	SERCON816

功能描述	SERCOS INTERFACE CONTROLLER

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制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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SERCON816

January 2003

s

Single-chip controller for SERCOS interface

s

Real time communication for industrial control

systems

s

8/16-bit bus interface, Intel and Motorola control

signals

s

Dual port RAM with 2048 word *16-bit

s

Data communications via optical fiber rings, RS

485 rings and RS 485 busses

s

Maximum transmission rate of 16 Mbaud with

internal clock recovery

s

Internal repeater for ring connections

s

Full duplex operation

s

Modulation of power of optical transmitter diode

s

Automatic transmission of synchronous and

data telegrams in the communication cycle

s

Flexible RAM configuration, communication

data stored in RAM (single or double buffer) or

transfer via DMA

s

Synchronization by external signal

s

Timing control signals

s

Automatic service channel transmission

s

Watchdog to monitor software and external

synchronization signals

s

Compatible mode to SERCON410B SERCOS

interface controller

s

100-pin plastic flat-pack casing

Figure 1. SERCON816 Block Diagram

bus interfac e

telegram-

proc essing

timing-

control

cloc k

reset

watc h-

dog

inter-

rupt

serial

interfac e

DMA

ADMUX

BUSMODE[1:0]

BUSWIDTH

BYTEDIR

SBAUD

SBAUD16

TM0/1

L_ERRN

RECACTN

IDLE

INT0/1

CYC_CLK

CON_CLK

DIV_CLK

SCLK

SCLKO2/4

WDOGN

MCLK

RSTN

DMAREQR/T

DMAACKNR/T

RxC

RxD

TxC

TxD[6:1]

WRN

D[15:0]

A[15:0]

BUSYN

RDN

ALEL

ALEH

BHEN

MCSN0/1

PCSN0

PCS1

optic a l

transm itter/

rec eiver

or

RS-485

bus

drive

PQFP100

ORDERING NUMBERS: SERC816

SERC816/TR

SERCOS INTERFACE CONTROLLER

类似零件编号 - SERCON816

制造商	部件名	数据表	功能描述
STMicroelectronics	SERCON410B	286Kb / 34P	SERCOS INTERFACE CONTROLLER May 1994

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