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Atmel SpW-10X user manual SpaceWire Router, User Manual, Preliminary

Models: SpW-10X

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Page 139

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
Preliminary		139

Page 139

Image 139

Atmel SpW-10X user manual SpaceWire Router, User Manual, Preliminary

Contents

AT7910E IssueSpaceWire Router Atmel Part NoUser Manual SpaceWire RouterSpW-10X Document Change logPreliminary SpaceWire RouterSpW-10X User ManualUser Manual CONTENTSSpaceWire Router SpW-10XUser Manual SpaceWire Router7. SPACEWIRE ROUTER PACKET TYPES SpW-10XUser Manual SpaceWire Router8.1.6 Setting the SpaceWire port transmit data rate SpW-10XPreliminary SpaceWire RouterSpW-10X User Manual13.3.2 Data Strobe Disable Waveform SpaceWire Router12.2.9 Status / Power On Configuration Interface 13.3.1 Data Strobe Reset WaveformISSUE 1.0 TO ISSUE SpaceWire RouterISSUE 1.2 TO ISSUE ISSUE 1.1 TO ISSUEUser Manual LIST OF FIGURESSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualUser Manual LIST OF TABLESSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 1. INTRODUCTION1.1 TERMS, ACRONYMS AND ABBREVIATIONS SpaceWire Router1194.pdf#page=1 SpW-10X SpaceWire Router1.2 DOCUMENTS LVDSOwnersManual4thEdition2008.pdfSpW-10X 2. USER APPLICATIONS2.1 STAND-ALONE ROUTER SpaceWire RouterSpW-10X 2.2 NODE INTERFACE2.3 EMBEDDED ROUTER SpaceWire RouterUser Manual 2.4 EXPANDING THE NUMBER OF ROUTER PORTSSpaceWire Router SpW-10XUser Manual SpaceWire RouterFigure 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 SpW-10XUser Manual SpaceWire RouterFigure 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 SpW-10XUser Manual 3. FUNCTIONAL OVERVIEWSpaceWire Router SpW-10XSpW-10X 3.1 SPACEWIRE PORTS3.2 EXTERNAL PORTS SpaceWire RouterSpaceWire Router 3.3 CONFIGURATION PORT3.4 ROUTING TABLE 3.5 ROUTING CONTROL LOGIC AND CROSSBARSpW-10X 3.6 TIME-CODE PROCESSING3.7 CONTROL/STATUS REGISTERS SpaceWire RouterUser Manual 4. PIN LOCATIONSSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 5.1 GLOBAL SIGNALS5. DEVICE INTERFACE SpaceWire RouterUser Manual 5.2 SPACEWIRE SIGNALS 5.2.1 SpW-10X SpaceWire SignalsSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 5.2.2 SpaceWire Input Fail Safe ResistorsSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 5.2.3 Operation with 5V Powered LVDS Devices5.3 EXTERNAL PORT DATA SIGNALS SpaceWire RouterPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 5.4 TIME-CODE SIGNALSSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 5.5 STATUS INTERFACE SIGNALSSpaceWire Router SpW-10XUser Manual 5.6 RESET CONFIGURATION SIGNALSSpaceWire Router SpW-10XUser Manual SpaceWire RouterSignal SpW-10XPreliminary SpaceWire RouterSpW-10X User Manual5.7.4 PLL External Components 5.7 POWER, GROUND, PLL AND LVDS SIGNALS 5.7.1 General5.7.2 Decoupling 5.7.3 LVDS ReferencePreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 6. INTERFACE OPERATIONS6.1 EXTERNAL PORT INTERFACE OPERATION SpaceWire RouterUser Manual 6.2 TIME-CODE INTERFACE OPERATIONSpaceWire Router SpW-10XUser Manual 6.3 STATUS INTERFACE OPERATIONSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 6.4 RESET CONFIGURATION INTERFACE OPERATIONSpaceWire Router SpW-10XSpW-10X 7. SPACEWIRE ROUTER PACKET TYPES7.1 PACKET ADDRESSES SpaceWire RouterSpW-10X 7.2 PACKET PRIORITY7.3 PACKET HEADER DELETION SpaceWire RouterUser Manual 7.4 INVALID ADDRESSESSpaceWire Router SpW-10XSpaceWire Router 7.6 COMMAND PACKETS7.6.1 Supported Commands 7.5 DATA PACKETSUser Manual 7.6.2 Read CommandSpaceWire Router SpW-10XSpW-10X Preliminary57SpaceWire Router CommandPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X SpaceWire RouterBits in Packet Type / Command / Source Address Path Length Byte CommandUser Manual 7.6.3 Read Incrementing CommandSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 7.6.4 Read Modify Write CommandSpaceWire Router SpW-10XSpW-10X Preliminary66SpaceWire Router Config Port AddressPreliminary SpaceWire RouterSpW-10X User ManualMask AND Command Data OR NOT Mask and Register Data SpaceWire RouterCommand Data Command MaskPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 7.6.5 Write CommandSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 7.6.6 Command Error ResponseSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 7.6.7 Command Packet Cyclic Redundancy Check7.6.8 Local Source Path Address SpaceWire RouterUser Manual 7.6.9 Source Path Address FieldSpaceWire Router SpW-10XUser Manual 7.6.10 Command Packet Fill BytesSpaceWire Router SpW-10X8.1.2 Auto-Start 8.1 SPACEWIRE LINK CONTROL8.1.1 Default operating mode 8. CONTROL LOGIC AND OPERATIONAL MODESSpW-10X 8.1.4 Link-Disable8.1.5 Automatic deactivate driver mode SpaceWire RouterPreliminary SpaceWire RouterSpW-10X User ManualDataRate = ⎜ 8.1.6 Setting the SpaceWire port transmit data rateTXRATE +1 100MHz + 20MHz * FEEDBDIV ⎞ ⎞SpW-10X 10MbitRate =TX 10MbitDIV +1 SpaceWire RouterUser Manual 8.2 GLOBAL SPACEWIRE LINK CONTROLSpaceWire Router SpW-10XSpW-10X 8.2.1 Start on request mode8.2.2 Disable on Silence mode SpaceWire RouterSpaceWire Router 8.3.1 Packet address error8.3 CONTROL LOGIC AND ROUTING 8.3.2 ArbitrationUser Manual 8.3.2.1 Arbitration of packets with matching prioritySpaceWire Router SpW-10XUser Manual 8.3.2.2 Arbitration of packets with matching prioritySpaceWire Router SpW-10XUser Manual 8.3.2.3 Arbitration of packets with different prioritySpaceWire Router SpW-10XUser Manual 8.3.2.4 Arbitration of packets with different prioritySpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualSpaceWire Router 8.3.3.2 Group adaptive routing when busy8.3.3 Group Adaptive Routing 8.3.3.1 Normal Group adaptive routingUser Manual 8.3.3.3 Group adaptive routing when ports not ready8.3.4 Loop-back with Self-Addressing SpW-10X SpaceWire RouterPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 8.3.5 Packet Blocking8.3.5.1 Blocked destination SpaceWire RouterUser Manual SpaceWire RouterIn 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 SpW-10XUser Manual SpaceWire RouterWhat 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 SpW-10XUser Manual 8.3.5.2 Stalled sourceSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 8.3.5.3 Waiting for an output portSpaceWire Router SpW-10XUser Manual SpaceWire RouterPackets 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 SpW-10XSpW-10X 9. REGISTER DEFINITIONS9.1 INTERNAL MEMORY MAP SpaceWire RouterUser Manual 9.2 REGISTER ADDRESSES SUMMARYSpaceWire Router SpW-10XUser Manual 9.3 GROUP ADAPTIVE ROUTING TABLE REGISTERSSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 9.4 PORT CONTROL/STATUS REGISTERS9.4.1 Generic port control/status register fields SpaceWire RouterUser Manual 9.4.2 Configuration port control/status register fieldsSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 9.4.3 SpaceWire port control/status register bitsSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualSpaceWire Router 9.4.4 External port control/status register bits9.5 ROUTER CONTROL/STATUS REGISTERS 9.5.1 Network Discovery RegisterUser Manual 9.5.2 Router Identity RegisterSpaceWire Router SpW-10XUser Manual 9.5.3 Router Control RegisterSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User ManualPreliminary SpaceWire RouterSpW-10X User ManualUser Manual 9.5.4 Error active RegisterSpaceWire Router SpW-10XUser Manual 9.5.5 Time-Code RegisterSpaceWire Router SpW-10XUser Manual 9.5.6 Device Manufacturer and Chip ID RegisterSpaceWire Router SpW-10XSpW-10X 9.5.8 Time-Code Enable Register9.5.7 General Purpose Register SpaceWire RouterUser Manual 9.5.9 Transmit Clock Control RegisterSpaceWire Router SpW-10XUser Manual SpaceWire RouterTXDIV Not used Enable clock Tx10MbitDIV Not used SpW-10XPreliminary SpaceWire RouterSpW-10X User Manual9.6 WRITING TO A READ-ONLY REGISTER 9.5.10 Destination Key Register9.5.11 Unused Registers and Register Bits 9.5.12 Empty packetsSpaceWire Router 10. SWITCHING CHARACTERISTICS10.1 CLOCK AND RESET TIMING PARAMETERS 10.2 SERIAL SIGNALS TIMING PARAMETERSUser Manual 10.3 EXTERNAL PORT TIMING PARAMETERSSpaceWire Router SpW-10XUser Manual 10.4 TIME-CODE INTERFACE TIMING PARAMETERSSpaceWire Router SpW-10XUser Manual 10.5 ERROR/STATUS INTERFACE TIMING PARAMETERSSpaceWire Router SpW-10XPreliminary SpaceWire RouterSpW-10X User Manual10.6.3 Router Latency 10.6.2 Switching Latency10.6 LATENCY AND JITTER 10.6.1 Clock PeriodsUser Manual 10.6.4 Time-code LatencySpaceWire Router SpW-10XSpW-10X 10.6.5 Time-code Jitter10.6.6 200M bits/s Input and Output Bit Rate Example SpaceWire RouterSpW-10X 11. ELECTRICAL CHARACTERISTICS11.1 DC CHARACTERISTICS SpaceWire RouterSpW-10X 11.2 ABSOLUTE MAXIMUM RATINGS11.3 RELIABILITY INFORMATION SpaceWire RouterSpW-10X 12.1 EXAMPLE CIRCUIT DIAGRAM12. APPLICATION GUIDELINES SpaceWire RouterPreliminary SpaceWire RouterSpW-10X User Manual12.2 PCB DESIGN AND LAYOUT GUIDELINES 12.2.3 Chip Test Signals12.2.4 Power and Decoupling 12.2.6 SpaceWireSpaceWire Router 12.2.9 Status / Power On Configuration Interface12.2.7 External Ports 12.2.8 Time-code InterfaceUser Manual 12.2.10 PLLSpaceWire Router SpW-10XSpaceWire Router 13. ANOMALIES AND WARNINGS13.1 ANOMALIES 13.2 WARNINGSPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 13.3 RESET ANOMALY13.3.1 Data Strobe Reset Waveform SpaceWire RouterPreliminary SpaceWire RouterSpW-10X User ManualSpW-10X 13.3.2 Data Strobe Disable Waveform13.3.3 Reset Anomaly Workarounds SpaceWire RouterSpW-10X 13.4 PARITY ERROR ANOMALY 13.4.1 Parity Error Action13.4.2 Parity Error Anomaly SpaceWire RouterUser Manual 13.4.3 Parity Error WorkaroundSpaceWire Router SpW-10XSpW-10X 14. TECHNICAL SUPPORTEmail assp-applab.hotline@nto.atmel.com SpaceWire Router15. DOCUMENT CHANGES 15.1 ISSUE 3.3 TO ISSUE15.2 ISSUE 3.2 TO ISSUE 15.3 ISSUE 3.1 TO ISSUESpW-10X 15.4 ISSUE 3.0 TO ISSUE15.5 ISSUE 2.5 TO ISSUE SpaceWire RouterSpaceWire Router 15.6 ISSUE 2.4 TO ISSUE15.7 ISSUE 2.3 TO ISSUE 15.8 ISSUE 2.2 TO ISSUE15.12 ISSUE 1.6 TO ISSUE 15.9 ISSUE 2.1 TO ISSUE15.10 ISSUE 2.0 TO ISSUE 15.11 ISSUE 1.7 TO ISSUESpW-10X 15.17 ISSUE 1.1 TO ISSUE15.18 ISSUE 1.0 TO ISSUE SpaceWire Router