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Atmel SpW-10X user manual Atmel Part No, AT7910E, Document Revision, Issue, Date, th July

Models: SpW-10X

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SpW-10X	Ref.:	UoD_SpW-10X_
SpaceWire Router		UserManual
SpaceWire Router	Issue:	3.4
User Manual	Issue:	3.4
User Manual	Date:	11th July 2008

SpW-10X SpaceWire Router

User Manual

Ref:	UoD_SpW-10X_UserManual
Atmel Part No.:	AT7910E
Document Revision:	Issue 3.4
Date:	11th July 2008

Prepared by -	Chris McClements, University of Dundee
	Steve Parkes, University of Dundee
	Gerald Kempf, Austrian Aerospace
Checked by -	Steve Parkes, University of Dundee
ESA Manager -	Pierre Fabry, ESTEC

Preliminary

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Atmel SpW-10X user manual Atmel Part No, AT7910E, Document Revision, Issue, Date, th July, SpaceWire Router, User Manual

Contents

SpaceWire Router IssueAtmel Part No AT7910ESpW-10X SpaceWire RouterDocument Change log User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router CONTENTSSpW-10X User Manual7. SPACEWIRE ROUTER PACKET TYPES SpaceWire RouterSpW-10X User Manual8.1.6 Setting the SpaceWire port transmit data rate SpaceWire RouterSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary12.2.9 Status / Power On Configuration Interface SpaceWire Router13.3.1 Data Strobe Reset Waveform 13.3.2 Data Strobe Disable WaveformISSUE 1.2 TO ISSUE SpaceWire RouterISSUE 1.1 TO ISSUE ISSUE 1.0 TO ISSUESpaceWire Router LIST OF FIGURESSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router LIST OF TABLESSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary1.1 TERMS, ACRONYMS AND ABBREVIATIONS 1. INTRODUCTIONSpaceWire Router SpW-10X1.2 DOCUMENTS SpW-10X SpaceWire RouterLVDSOwnersManual4thEdition2008.pdf 1194.pdf#page=12.1 STAND-ALONE ROUTER 2. USER APPLICATIONSSpaceWire Router SpW-10X2.3 EMBEDDED ROUTER 2.2 NODE INTERFACESpaceWire Router SpW-10XSpaceWire Router 2.4 EXPANDING THE NUMBER OF ROUTER PORTSSpW-10X User ManualFigure 2-4 shows a pair of SpW-10X routers connected together using the external FIFO ports to provide a 16 port router. A small amount of external logic is required to connect the external FIFO ports in this way. Note that the bandwidth between the two SpW-10X devices is limited by the two external FIFO ports used to interconnect them. Each FIFO port can handle one SpaceWire packet at a time in each direction SpaceWire RouterSpW-10X User ManualFigure 2-5 shows two SpW-10X router devices interconnected using two of the SpaceWire ports on each router. This leaves twelve SpaceWire ports for connection to other SpaceWire nodes. The External FIFO ports of each router are used to connect to user logic in an FPGA or to a processing device SpaceWire RouterSpW-10X User ManualSpaceWire Router 3. FUNCTIONAL OVERVIEWSpW-10X User Manual3.2 EXTERNAL PORTS 3.1 SPACEWIRE PORTSSpaceWire Router SpW-10X3.4 ROUTING TABLE 3.3 CONFIGURATION PORT3.5 ROUTING CONTROL LOGIC AND CROSSBAR SpaceWire Router3.7 CONTROL/STATUS REGISTERS 3.6 TIME-CODE PROCESSINGSpaceWire Router SpW-10XSpaceWire Router 4. PIN LOCATIONSSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual Preliminary5. DEVICE INTERFACE 5.1 GLOBAL SIGNALSSpaceWire Router SpW-10XSpaceWire Router 5.2 SPACEWIRE SIGNALS 5.2.1 SpW-10X SpaceWire SignalsSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 5.2.2 SpaceWire Input Fail Safe ResistorsSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary5.3 EXTERNAL PORT DATA SIGNALS 5.2.3 Operation with 5V Powered LVDS DevicesSpaceWire Router SpW-10XSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 5.4 TIME-CODE SIGNALSSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 5.5 STATUS INTERFACE SIGNALSSpW-10X User ManualSpaceWire Router 5.6 RESET CONFIGURATION SIGNALSSpW-10X User ManualSignal SpaceWire RouterSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary5.7.2 Decoupling 5.7 POWER, GROUND, PLL AND LVDS SIGNALS 5.7.1 General5.7.3 LVDS Reference 5.7.4 PLL External ComponentsSpW-10X SpaceWire RouterUser Manual Preliminary6.1 EXTERNAL PORT INTERFACE OPERATION 6. INTERFACE OPERATIONSSpaceWire Router SpW-10XSpaceWire Router 6.2 TIME-CODE INTERFACE OPERATIONSpW-10X User ManualSpaceWire Router 6.3 STATUS INTERFACE OPERATIONSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 6.4 RESET CONFIGURATION INTERFACE OPERATIONSpW-10X User Manual7.1 PACKET ADDRESSES 7. SPACEWIRE ROUTER PACKET TYPESSpaceWire Router SpW-10X7.3 PACKET HEADER DELETION 7.2 PACKET PRIORITYSpaceWire Router SpW-10XSpaceWire Router 7.4 INVALID ADDRESSESSpW-10X User Manual7.6.1 Supported Commands 7.6 COMMAND PACKETS7.5 DATA PACKETS SpaceWire RouterSpaceWire Router 7.6.2 Read CommandSpW-10X User ManualSpaceWire Router Preliminary57Command SpW-10XSpW-10X SpaceWire RouterUser Manual PreliminaryBits in Packet Type / Command / Source Address Path Length Byte SpaceWire RouterCommand SpW-10XSpaceWire Router 7.6.3 Read Incrementing CommandSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 7.6.4 Read Modify Write CommandSpW-10X User ManualSpaceWire Router Preliminary66Config Port Address SpW-10XSpW-10X SpaceWire RouterUser Manual PreliminaryCommand Data SpaceWire RouterCommand Mask Mask AND Command Data OR NOT Mask and Register DataSpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 7.6.5 Write CommandSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 7.6.6 Command Error ResponseSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary7.6.8 Local Source Path Address 7.6.7 Command Packet Cyclic Redundancy CheckSpaceWire Router SpW-10XSpaceWire Router 7.6.9 Source Path Address FieldSpW-10X User ManualSpaceWire Router 7.6.10 Command Packet Fill BytesSpW-10X User Manual8.1.1 Default operating mode 8.1 SPACEWIRE LINK CONTROL8. CONTROL LOGIC AND OPERATIONAL MODES 8.1.2 Auto-Start8.1.5 Automatic deactivate driver mode 8.1.4 Link-DisableSpaceWire Router SpW-10XSpW-10X SpaceWire RouterUser Manual PreliminaryTXRATE +1 8.1.6 Setting the SpaceWire port transmit data rate100MHz + 20MHz * FEEDBDIV ⎞ ⎞ DataRate = ⎜TX 10MbitDIV +1 10MbitRate =SpaceWire Router SpW-10XSpaceWire Router 8.2 GLOBAL SPACEWIRE LINK CONTROLSpW-10X User Manual8.2.2 Disable on Silence mode 8.2.1 Start on request modeSpaceWire Router SpW-10X8.3 CONTROL LOGIC AND ROUTING 8.3.1 Packet address error8.3.2 Arbitration SpaceWire RouterSpaceWire Router 8.3.2.1 Arbitration of packets with matching prioritySpW-10X User ManualSpaceWire Router 8.3.2.2 Arbitration of packets with matching prioritySpW-10X User ManualSpaceWire Router 8.3.2.3 Arbitration of packets with different prioritySpW-10X User ManualSpaceWire Router 8.3.2.4 Arbitration of packets with different prioritySpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary8.3.3 Group Adaptive Routing 8.3.3.2 Group adaptive routing when busy8.3.3.1 Normal Group adaptive routing SpaceWire Router8.3.4 Loop-back with Self-Addressing 8.3.3.3 Group adaptive routing when ports not readySpW-10X SpaceWire Router User ManualSpW-10X SpaceWire RouterUser Manual Preliminary8.3.5.1 Blocked destination 8.3.5 Packet BlockingSpaceWire Router SpW-10XIn blocking allowed mode the network path is blocked until the destination node starts to accept data again. Packets waiting to use the network path will wait indefinitely SpaceWire RouterSpW-10X User ManualWhat happens when the routers are in Watchdog Timer mode and a destination becomes blocked is illustrated in Figure 8-17to Figure 8-20. Only SpaceWire ports 1 to 6 are shown for clarity SpaceWire RouterSpW-10X User ManualSpaceWire Router 8.3.5.2 Stalled sourceSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 8.3.5.3 Waiting for an output portSpW-10X User ManualPackets can timeout and be spilled in a SpaceWire network without the destination receiving any notification of this. Packets with errors e.g. parity error can arrive at a destination terminated by an EEP. In a very special case it is also possible to receive an error free packet terminated by an EEP. It is important that the destination node is able to handle these cases SpaceWire RouterSpW-10X User Manual9.1 INTERNAL MEMORY MAP 9. REGISTER DEFINITIONSSpaceWire Router SpW-10XSpaceWire Router 9.2 REGISTER ADDRESSES SUMMARYSpW-10X User ManualSpaceWire Router 9.3 GROUP ADAPTIVE ROUTING TABLE REGISTERSSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual Preliminary9.4.1 Generic port control/status register fields 9.4 PORT CONTROL/STATUS REGISTERSSpaceWire Router SpW-10XSpaceWire Router 9.4.2 Configuration port control/status register fieldsSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 9.4.3 SpaceWire port control/status register bitsSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual Preliminary9.5 ROUTER CONTROL/STATUS REGISTERS 9.4.4 External port control/status register bits9.5.1 Network Discovery Register SpaceWire RouterSpaceWire Router 9.5.2 Router Identity RegisterSpW-10X User ManualSpaceWire Router 9.5.3 Router Control RegisterSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual PreliminarySpW-10X SpaceWire RouterUser Manual PreliminarySpaceWire Router 9.5.4 Error active RegisterSpW-10X User ManualSpaceWire Router 9.5.5 Time-Code RegisterSpW-10X User ManualSpaceWire Router 9.5.6 Device Manufacturer and Chip ID RegisterSpW-10X User Manual9.5.7 General Purpose Register 9.5.8 Time-Code Enable RegisterSpaceWire Router SpW-10XSpaceWire Router 9.5.9 Transmit Clock Control RegisterSpW-10X User ManualTXDIV Not used Enable clock Tx10MbitDIV Not used SpaceWire RouterSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary9.5.11 Unused Registers and Register Bits 9.5.10 Destination Key Register9.5.12 Empty packets 9.6 WRITING TO A READ-ONLY REGISTER10.1 CLOCK AND RESET TIMING PARAMETERS 10. SWITCHING CHARACTERISTICS10.2 SERIAL SIGNALS TIMING PARAMETERS SpaceWire RouterSpaceWire Router 10.3 EXTERNAL PORT TIMING PARAMETERSSpW-10X User ManualSpaceWire Router 10.4 TIME-CODE INTERFACE TIMING PARAMETERSSpW-10X User ManualSpaceWire Router 10.5 ERROR/STATUS INTERFACE TIMING PARAMETERSSpW-10X User ManualSpW-10X SpaceWire RouterUser Manual Preliminary10.6 LATENCY AND JITTER 10.6.2 Switching Latency10.6.1 Clock Periods 10.6.3 Router LatencySpaceWire Router 10.6.4 Time-code LatencySpW-10X User Manual10.6.6 200M bits/s Input and Output Bit Rate Example 10.6.5 Time-code JitterSpaceWire Router SpW-10X11.1 DC CHARACTERISTICS 11. ELECTRICAL CHARACTERISTICSSpaceWire Router SpW-10X11.3 RELIABILITY INFORMATION 11.2 ABSOLUTE MAXIMUM RATINGSSpaceWire Router SpW-10X12. APPLICATION GUIDELINES 12.1 EXAMPLE CIRCUIT DIAGRAMSpaceWire Router SpW-10XSpW-10X SpaceWire RouterUser Manual Preliminary12.2.4 Power and Decoupling 12.2.3 Chip Test Signals12.2.6 SpaceWire 12.2 PCB DESIGN AND LAYOUT GUIDELINES12.2.7 External Ports 12.2.9 Status / Power On Configuration Interface12.2.8 Time-code Interface SpaceWire RouterSpaceWire Router 12.2.10 PLLSpW-10X User Manual13.1 ANOMALIES 13. ANOMALIES AND WARNINGS13.2 WARNINGS SpaceWire RouterSpW-10X SpaceWire RouterUser Manual Preliminary13.3.1 Data Strobe Reset Waveform 13.3 RESET ANOMALYSpaceWire Router SpW-10XSpW-10X SpaceWire RouterUser Manual Preliminary13.3.3 Reset Anomaly Workarounds 13.3.2 Data Strobe Disable WaveformSpaceWire Router SpW-10X13.4.2 Parity Error Anomaly 13.4 PARITY ERROR ANOMALY 13.4.1 Parity Error ActionSpaceWire Router SpW-10XSpaceWire Router 13.4.3 Parity Error WorkaroundSpW-10X User ManualEmail assp-applab.hotline@nto.atmel.com 14. TECHNICAL SUPPORTSpaceWire Router SpW-10X15.2 ISSUE 3.2 TO ISSUE 15.1 ISSUE 3.3 TO ISSUE15.3 ISSUE 3.1 TO ISSUE 15. DOCUMENT CHANGES15.5 ISSUE 2.5 TO ISSUE 15.4 ISSUE 3.0 TO ISSUESpaceWire Router SpW-10X15.7 ISSUE 2.3 TO ISSUE 15.6 ISSUE 2.4 TO ISSUE15.8 ISSUE 2.2 TO ISSUE SpaceWire Router15.10 ISSUE 2.0 TO ISSUE 15.9 ISSUE 2.1 TO ISSUE15.11 ISSUE 1.7 TO ISSUE 15.12 ISSUE 1.6 TO ISSUE15.18 ISSUE 1.0 TO ISSUE 15.17 ISSUE 1.1 TO ISSUESpaceWire Router SpW-10X

SpW-10X

SpaceWire Router

User Manual

SpW-10X SpaceWire Router

UoD_SpW-10X_UserManual

Atmel Part No.:

AT7910E

Document Revision:

Issue 3.4

Date:

11th July 2008

Preliminary