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STMicroelectronics - SERCOS INTERFACE CONTROLLER

Numéro de référence SERC816
Description SERCOS INTERFACE CONTROLLER
Fabricant STMicroelectronics 
Logo STMicroelectronics 





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SERC816 fiche technique
SERCON816
SERCOS INTERFACE CONTROLLER
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
PQFP100
ORDERING NUMBERS: SERC816
SERC816/TR
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
WRN D[15:0] A[15:0] BUSYN
MCSN0/1
RDN
ALEL
ALEH
BHEN
PCSN0
PCS1
ADMUX
BUSMODE[1:0]
BUSWIDTH
BYTEDIR
SBAUD
SBAUD16
TM0/1
bus interfac e
inter-
rupt
te le g ra m -
proc essing
DMA
c loc k
reset
watc h-
dog
tim ing -
c ontrol
INT0/1
SCLK
SCLKO2/4
MCLK
RSTN
DMAREQR/T
DMAACKNR/T
WDOGN
CYC_CLK
CON_CLK
DIV_CLK
serial interfac e
L_ERRN
RECACTN
IDLE
RxC TxC
RxD TxD[6:1]
optical transm itter/
receiver or
RS-485 bus drive
January 2003
1/23

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