Siemens SPC3 manual Switching Diagram Principles, Low Cost System with 80C32

Page 41

		SPC3	PROFIBUS Interface Center
		SPC3	PROFIBUS Interface Center

7.1.3	Switching Diagram Principles
			Low Cost System with 80C32		Pulse Generator
					48MHz	DIVIDER
					12/24 MHz	DIVIDER
					12/24 MHz
	CLK	W R			Divider :2/4
		W R			XW R
		RD			XRD	RTS
		INT0			X/INT	RTS
		INT0			X/INT
					DB 7..0	TxD
		Port 0	A / D 7...0		Data
80C32/		Port 0	A / D 7...0		DB 7..0	RxD
						RxD

C501		ALE			Address Latch	XCTS
						XCTS
					AB 7..0	SPC3
		Port 2	AB 15...8	(0000 00XX BIN)	Address	1K
		Port 2	AB 15...8	(0000 00XX BIN)	decoder
						GND
					AB8
					AB9
					AB10
						SPC3
		Reset			Mode	Reset
		Reset

1K 1K

1K

3K3

GND VDD

80C32 System with Ext. Memory (C32-Mode)

12/24 MHz

Pulse Generator

48 MHz

DIVIDER

CLK

W R

RD

INT0

80C32 20/16M Hz

ALE

Port 0 A / D 7...0

Port 2 AB 15...8

PSEN

Address

Latch

(0000 00XX BIN)

Scaler:2/4

XW R

XRD

RTS

X/INT

	TxD
DB 7..0
Data	RxD
DB 7..0	XCTS
Address Latch	XCTS

	SPC3
			1K
AB 7....0
Address-		GND
decoder

Reset

			AB 15...0
	EPROM	RAM	Address
			Decoder
	64kB	32kB

RD W R

AB8

AB9

AB10

SPC3

Mode Reset

1K

1K

1K

3K3

GND VDD

SPC3 Hardware Description	V1.3	Page 39
Copyright (C) Siemens AG 2003 All rights reserved.		2003/04

Image 41

Contents

Simatic NET Page SIM Atic NET SPC3 Hardware Description Profibus Interface CenterRelease Date Changes VersionsStatus Register Interrupt Controller Watchdog Timer Mode RegisterDPBuffer Structure Description of the DP Services DirectoryPin Assignment Example for the RS 485 Interface 11.3 Diagnostics Processing from the System ViewAsic Test SPC3 Introduction Function Overview Cmos Pin DescriptionCPD Cmos with pull down TTLt Schmitt trigger V1.3 5FFH Memory AllocationMemory Area Distribution in the SPC3 Segment Processor Parameters Latches/Register 0EH 0FH Significance Write AccessOCH 0DH Organizational Parameters RAM 1BH 1AH1CH 1DHAsic Interface Mode RegisterDisstartcontrol STARTSPC3 Mode Register 1 Mode-REG1, writableExiting the Offline state EOIStatus Register Status Register Bit15 . .readable FdlindstSPC3 IRR IMR Interrupt ControllerDxout IAR IMRAutomatic Baud Rate Identification Watchdog TimerBaud Rate Monitoring Response Time MonitoringDPBuffer Structure PROFIBUS-DP InterfaceUart Aux-Buffer Management RAMSequence for the SetSlaveAddress Utility Description of the DP ServicesSetSlaveAddress SAP55 Parameter Data Processing Sequence SetParam SAP61Parameter Data Structure SPC3 CheckConfig SAP62SPC3 Diagnostics Processing SequenceSlaveDiagnosis SAP60 Writing Outputs Structure of the Diagnostics BufferWriteReadData / DataExchange DefaultSAP Reading Inputs GlobalControl SAP58 UserWatchdogTimerReadOutputs SAP57 GetConfig SAP59ReadInputs SAP56 Universal Processor Bus Interface Hardware InterfaceGeneral Description Bus Interface Unit BIUBus 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 Asic Test Interface SignalsUart Maximum Limit Values Technical DataPermitted Operating Values DC-Specifikation of the I/O- DriversCurrent Tabelle 8.5 Leakage current of the output drivers AC-Specification for the Output DriversTabel 8.3 DC-Specifikation of the I/O- Drivers SYS Bus Interface Timing CharacteristicsClock pulse 48 Mhz Clock Pulse TimingTiming in the Synchronous C32-Mode ResetST-Vers Min Max Unit TBDSynchronous Intel-Mode, Processor-Write-Timing Synchronous Intel-Mode, Processor-Read-TimingParameter Min Max Timing in the Asynchronous Intel Mode X86 ModeST-Vers XRD XCS Xready Asynchronous Intel-Mode, Processor-Read-TimingAsynchronous Intel-Mode, Processor-Write-Timing XWR XCSSynchronous Motorola-Mode, Processor-Read-Timing 4.1 74.2Timing in the Asynchronous Motorola-Mode for example, 68HC16 Synchronous Motorola-Mode, Processor-Write-TimingAsynchronous Motorola-Mode, Processor-Write-Timing Asynchronous Motorola-Mode, Processor-Read-TimingXCS Xdsack Pulse 48 MHz Serial Bus InterfaceHousing PQFP-44 Housing SPC3 Hardware Description 13.65 Symbol Min Typ Max AMI-Vers13.90 14.15Pin Assignment Profibus InterfaceRTS TXDSN65ALS1176 Example for the RS 485 InterfaceAddresses AppendixProfibus User Organisation Technical contact person at ComDeC in GermanyOrdering of ASICs General Definition of Terms10.3.1 SPC3 AMI 10.3.2 SPC3 STDiagnostics Bits and Expanded Diagnostics Appendix a Diagnostics Processing in Profibus DPIntroduction StatdiagIdentifier Byte 7 has Etc Identifier Byte 0 has Single Diagnostics Diagnostics Processing from the System ViewSimatic S5 / COM ET CombiData format in the Siemens PLC Simatic Appendix B Useful InformationPage Siemens Aktiengesellschaft