serc816-tr STMicroelectronics, serc816-tr Datasheet

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serc816-tr

Manufacturer Part Number
serc816-tr
Description
Sercos Interface Controller
Manufacturer
STMicroelectronics
Datasheet
Figure 1. SERCON816 Block Diagram
January 2003
Single-chip controller for SERCOS interface
Real time communication for industrial control
systems
8/16-bit bus interface, Intel and Motorola control
signals
Dual port RAM with 2048 word *16-bit
Data communications via optical fiber rings, RS
485 rings and RS 485 busses
Maximum transmission rate of 16 Mbaud with
internal clock recovery
Internal repeater for ring connections
Full duplex operation
Modulation of power of optical transmitter diode
Automatic transmission of synchronous and
data telegrams in the communication cycle
Flexible RAM configuration, communication
data stored in RAM (single or double buffer) or
transfer via DMA
Synchronization by external signal
BUS MODE[1:0]
BUS WIDT H
S BAUD16
ADMUX
BY T E DIR
S BAUD
T M0/1
WRN
proc essing
telegram-
R DN
SERCOS INTERFACE CONTROLLER
R xC
bus interfac e
D[15:0]
R xD
serial interfac e
ALEL
ALEH
T xC
A[15:0]
T xD[6:1]
BHEN
optical transm itter/
RS -485 bus drive
BUS Y N
DMA
receiver or
MCS N0/1
timing-
c ontrol
P CS N0
PCS 1
Timing control signals
Automatic service channel transmission
Watchdog to monitor software and external
synchronization signals
Compatible mode to SERCON410B SERCOS
interface controller
100-pin plastic flat-pack casing
watc h-
c loc k
inter-
reset
dog
rupt
ORDERING NUMBERS: SERC816
DMAR EQR/T
DMAACKNR/T
CY C_CLK
CON_CLK
DIV_CLK
L_E RRN
R ECACT N
IDLE
INT 0/1
S CLK
S CLK O2/4
MCLK
RS T N
WDOGN
PQFP100
SERCON816
SERC816/TR
1/23

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serc816-tr Summary of contents

Page 1

... T M0 xD[6:1] optical transm itter/ receiver or RS -485 bus drive SERCON816 PQFP100 ORDERING NUMBERS: SERC816 SERC816/TR inter- INT 0/1 rupt S CLK c loc k S CLK O2/4 MCLK reset DMAR EQR/T DMAACKNR/T watc h- WDOGN dog ...

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SERCON816 1 GENERAL DESCRIPTION.................................................................................................................3 2 Pin Description ...................................................................................................................................5 3 Electrical (DC and AC) Characteristics ..............................................................................................7 3.1 Absolute Maximum Ratings .....................................................................................................7 3.2 Recommended Operating Conditions ......................................................................................8 3.3 ELECTRICAL CHARACTERISTCS ........................................................................................8 3.4 Power Dissipation ....................................................................................................................9 3.4.1 Power Dissipation Considerations....................................................................................9 3.5 AC Electrical ...

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GENERAL DESCRIPTION The SERCOS interface controller SERCON816 is an integrated circuit for SERCOS interface communication systems. The SERCOS interface is a digital interface for communication between systems which have to ex- change information cyclically at short, fixed intervals (62,5 ...

Page 4

SERCON816 Figure 3. SERCON816 with Ring Connection (SERCOS interface) RxD Figure 4. SERCON816 with RS-485 bus connection 4/23 µP bus interfac e S ERCON816 m aster fibre optical ring T xD RxD ERCON816 S ER CON816 bus ...

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PIN DESCRIPTION Table 1. SERCON816 I/O Port Function Summary Signal(s) Pin(s) D15-0 77-80, 82-85, 87-90, 92-95 ALEL, ALEH 54, 53 RDN 51 WRN 52 BHEN 75 MCSN0, 46,47 MCSN1 PCSN0, 48,49 PCS1 BUSYN 45 DMAREQR 38 DMAACKRN 40 DMAREQT ...

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SERCON816 Table 1. SERCON816 I/O Port Function Summary (continued) Signal(s) Pin(s) RxD 14 RxC 12 RECACTN 26 TxD1 16 TxD6-2 22,21,20, 18,17 TxC 13 IDLE 25 DMAREQT 39 DMAACKTN 41 ADMUX 96 BUSMODE0, 97,98 BUSMODE1 BUSWIDTH 99 BYTEDIR 100 INT0, ...

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Table 1. SERCON816 I/O Port Function Summary (continued) Signal(s) Pin(s) WDOGN 24 L_ERRN 32 CYC_CLK 34 CON_CLK 35 DIV_CLK 36 SCLK 2 SCLKO2 6 SCLKO4 5 MCLK 4 RSTN 10 TEST 7 OUTZ 11 NDTRO 9 VSS 3,15,23,33 ,42,50,60, 70,81,91 ...

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SERCON816 3.2 Recommended Operating Conditions Symbol T Operating temperature A T Chip junction temperature J V Operating supply voltage DD f Clock frequency SCLK SCLK f Clock frequency MCLK MCLK Notes: 1. Only if PLL is used (SBAUD16=0) 2. For ...

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ELECTRICAL CHARACTERISTCS (continued ± -40 °C to +85 °C, unless otherwise specified) DD amb Symbol Parameter V Low level output voltage, pins OL TXD6-1, L_ERRN V High level output voltage, pins OH TXD6-1, ...

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SERCON816 Typical current consumption: measured at 5V (VCC/VDD) and 25°C f Mode SCLK 410B 816 3.5 AC Electrical Characteristics ( pF ± load DD 3.5.1 Clock Input MCLK Figure 5. Timing of ...

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Clock Input SCLK Figure 6. Timing of Clock SCLK SCLK Symbol f Clock frequency SCLK SCLK PLL used (SBAUD16=0) PLL unused (SBAUD16=1) t SCLK low SCLK0 t SCLK high SCLK1 3.5.3 Address Latch Figure 7. Address Latch ALEH, ALEL ...

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SERCON816 3.5.4 Read Access of Control Registers Figure 8. Read Access of Control Registers A6-0, BHEN PCSN0, PCS1, DMAACKNR, WRN (Motorola mode) RDN D15-0 DMAREQR Symbol t Setup time A6-0, (Note 1) ASU Setup time BHEN, PCSN0, PCS1, DMAACKNR, WRN ...

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Read Access of Dual Port RAM Figure 9. Read Access of Dual Port RAM A10-0, BHEN, MCSN0-1, WRN (Motorola mode) RDN D15-0 BUS YN Symbol t Setup time A11-0, (Note 1) ASU Setup time MCSN0-1, if both signals are ...

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SERCON816 3.5.6 Write Access to Control Registers Figure 10. Write Access to Control Registers A6-0, BHEN, PCS N0, PCS1, DMAACKNT , WRN (Motorola mode) WRN (Intel mode) RDN (Motorola mode) D15-0 DMAREQT Symbol t Setup time A6-0, (Note 1) ASU ...

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Write Access to DUAL Port RAM Figure 11. Write Access to DUAL Port RAM A10-0, BHEN, MCSN0-1, WRN (Motorola mode) WRN (Intel mode) RDN (Motorola mode) D15-0 BUS YN Symbol t Setup time A11-0, (Note 1) ASU Setup time ...

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SERCON816 4 CONTROL REGISTERS AND RAM DATA STRUCTURES 4.1 Control Register Addresses The following table is an overview of the control registers. The address is the word address which is input by A6-1. To calculate the byte address, the value ...

Page 17

Data Containers A data container comprises one or two 16-bit control words as well as a variable number of data words. If the data is stored in the internal RAM (DMA = 0) and a single buffer is used ...

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SERCON816 4.2.3 End Marker The end marker comprises two 16-bit words: Index Bit Name 0 0-13 (Not used Marker bit for the end marker Marker bit for the end marker. 1 0-15 TEND Time after end ...

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For master mode (SCMASTER = 1) the control words are coded as follows: Index Bit Name 0 0 HS_MDT 1 L/S_MDT 2 END_MDT 3-5 ELEM_MDT 6 SETEND 7 M_BUSY 8-9 NINFO_WRITE 10-11 12 INT_ERR 13 INT_END_WRBUF 14 INT_END_RDBUF 15 1 ...

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SERCON816 The coding of the five control words depends on the mode of the service channel. Using the slave mode (SCMASTER = 0) they have the following structure: Index Bit Name 0 0 HS_AT 1 BUSY_AT 2 ERR_AT 3 CMD_AT ...

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ADDITIONAL SPECIFICATIONS, TOOLS AND SUPPORT 5.1 Additional Specifications Reference Manual SERCON816 The reference manual (160 pages) for the SERCON816 Asic contains a complete and very detailed spec- ification of the SERCON816 Asic, including a description of the pinning of ...

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SERCON816 6 PACKAGE MECHANICAL DATA: SERCON816 100 PIN PLASTIC QUAD FLAT PACK PACKAGE (PQFP100) mm DIM. MIN. TYP. MAX. A 3.40 A1 0.25 A2 2.55 2.80 3.05 B 0.22 0.38 C 0.13 0.23 D 22.95 23.20 23.45 D1 19.90 20.00 ...

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... No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specifications mentioned in this publication are subject to change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of STMicroelectronics ...

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