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Siemens SPC3 manual Asic Interface, Mode Register

Models: SPC3

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		SPC3	PROFIBUS Interface Center
		SPC3	PROFIBUS Interface Center

5ASIC Interface

The registers that determine both the hardware function of the ASIC as well as telegram processing are described in the following.

5.1 Mode Register

Parameter bits that access the controller directly or which the controller directly sets are combined in two mode registers (0 and 1) in the SPC3.

5.1.1 Mode Register 0

Setting parameters for Mode Register 0 takes place in the offline state only (for example, after switching on). The SPC3 may not exit offline until Mode Register 0, all processor parameters, and organizational parameters are loaded (START_SPC3 = 1, Mode-Register 1).

Address

Bit Position

Designation

Control

7

6

5

4

3

2

1

0

Register

06H

Freeze_

Sync_

EARLY_

INT_

DIS_

DIS_

Mode Reg0

(Intel)

Support-

Support-

RDY

POL

MinTSDR

STOP_

START_

7..0

ed

ed

CON

CON

TROL

TROL

Address

Bit Position

Designation

Control

15

14

13

12

11

10

9

8

Register

07H

Spec_Cle

Spec_Prm_

WD

User

EOI

DP

Mode-Reg0

(Intel)

ar_Mode

Puf_Mode

Test

Time

Time

Mode

13 .. 8

*)

**)

base

base

*) When Spec_Clear_Mode (Fail Safe Mode ) = 1 the SPC3 will accept data telegramm with a data unit=0 in the state Data Exchange. The reaction to the outputs can be parameterized f.e. in the parameterization telegram ( only available from version Step C).

**) When using a big number of parameters to be transmitted from the PROFIBUS-Master to the slave the Auxiliary buffer ½ has to have the same size like t he Parameterization buffer. Sometimes this could reach the limit of the available memory space in the SPC3. When Spec_Prm_Puf_Mode = 1 the parameterization data are processed directly in this special buffer and the Auxiliary buffers can be held compact.

SPC3 Hardware Description	V1.3	Page 17
Copyright (C) Siemens AG 2003 All rights reserved.		2003/04

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Siemens SPC3 manual Asic Interface, Mode Register

Contents

Simatic NET Page SIM Atic NET SPC3 Hardware Description Profibus Interface CenterRelease Date Changes VersionsDirectory Mode RegisterStatus Register Interrupt Controller Watchdog Timer DPBuffer Structure Description of the DP ServicesAsic Test 11.3 Diagnostics Processing from the System ViewPin Assignment Example for the RS 485 Interface SPC3 Introduction Function Overview Cmos Pin DescriptionCPD Cmos with pull down TTLt Schmitt trigger V1.3 Memory Area Distribution in the SPC3 Memory Allocation5FFH Segment Processor Parameters Latches/Register OCH 0DH Significance Write Access0EH 0FH Organizational Parameters RAM 1DH 1AH1BH 1CHAsic Interface Mode RegisterDisstartcontrol EOI Mode Register 1 Mode-REG1, writableSTARTSPC3 Exiting the Offline stateStatus Register Status Register Bit15 . .readable FdlindstSPC3 IRR IMR Interrupt ControllerDxout IAR IMRResponse Time Monitoring Watchdog TimerAutomatic Baud Rate Identification Baud Rate MonitoringDPBuffer Structure PROFIBUS-DP InterfaceUart Aux-Buffer Management RAMSetSlaveAddress SAP55 Description of the DP ServicesSequence for the SetSlaveAddress Utility Parameter Data Structure SetParam SAP61Parameter Data Processing Sequence SPC3 CheckConfig SAP62SlaveDiagnosis SAP60 Diagnostics Processing SequenceSPC3 WriteReadData / DataExchange DefaultSAP Structure of the Diagnostics BufferWriting Outputs Reading Inputs Profibus Interface CenterGlobalControl SAP58 UserWatchdogTimerReadInputs SAP56 GetConfig SAP59ReadOutputs SAP57 Bus Interface Unit BIU Hardware InterfaceUniversal Processor Bus Interface General DescriptionBus Interface V1.3 XINT/MO ModeLow Cost System with 80C32 Switching Diagram PrinciplesSystem X86-Mode Application with the 80 C SPC3Application with th 80 C Uart Interface SignalsAsic Test DC-Specifikation of the I/O- Drivers Technical DataMaximum Limit Values Permitted Operating ValuesTabel 8.3 DC-Specifikation of the I/O- Drivers AC-Specification for the Output DriversCurrent Tabelle 8.5 Leakage current of the output drivers Clock Pulse Timing Timing CharacteristicsSYS Bus Interface Clock pulse 48 MhzTBD ResetTiming in the Synchronous C32-Mode ST-Vers Min Max UnitSynchronous Intel-Mode, Processor-Write-Timing Synchronous Intel-Mode, Processor-Read-TimingST-Vers Timing in the Asynchronous Intel Mode X86 ModeParameter Min Max XWR XCS Asynchronous Intel-Mode, Processor-Read-TimingXRD XCS Xready Asynchronous Intel-Mode, Processor-Write-TimingSynchronous Motorola-Mode, Processor-Read-Timing 4.1 74.2Timing in the Asynchronous Motorola-Mode for example, 68HC16 Synchronous Motorola-Mode, Processor-Write-TimingXCS Xdsack Asynchronous Motorola-Mode, Processor-Read-TimingAsynchronous Motorola-Mode, Processor-Write-Timing Pulse 48 MHz Serial Bus InterfaceHousing PQFP-44 Housing SPC3 Hardware Description 14.15 Symbol Min Typ Max AMI-Vers13.65 13.90TXD Profibus InterfacePin Assignment RTSSN65ALS1176 Example for the RS 485 InterfaceTechnical contact person at ComDeC in Germany AppendixAddresses Profibus User Organisation10.3.2 SPC3 ST General Definition of TermsOrdering of ASICs 10.3.1 SPC3 AMIStatdiag Appendix a Diagnostics Processing in Profibus DPDiagnostics Bits and Expanded Diagnostics IntroductionIdentifier Byte 7 has Etc Identifier Byte 0 has Combi Diagnostics Processing from the System ViewSingle Diagnostics Simatic S5 / COM ETData format in the Siemens PLC Simatic Appendix B Useful InformationPage Siemens Aktiengesellschaft