Atmel SpaceWire Router SpW-10X - Manual (Page 5)

Ref.: UoD_SpW-10X_
UserManual
Issue: 3.4
SpW-10X
SpaceWire Router
User Manual Date: 11 th
July 2008
Preliminary
5
5.3 EXTERNAL PORT DATA SIGNALS............................................................................................ 37
5.4 TIME-CODE SIGNALS ................................................................................................................ 39
5.5 STATUS INTERFACE SIGNALS................................................................................................. 41
5.6 RESET CONFIGURATION SIGNALS ......................................................................................... 42
5.7 POWER, GROUND, PLL AND LVDS SIGNALS ......................................................................... 45
5.7.1 General...................................................................................................................................... 45
5.7.2 Decoupling ................................................................................................................................ 45
5.7.3 LVDS Reference ....................................................................................................................... 45
5.7.4 PLL External Components ........................................................................................................ 45
6. INTERFACE OPERATIONS.......................................................................................................... 47
6.1 EXTERNAL PORT INTERFACE OPERATION ........................................................................... 47
6.2 TIME-CODE INTERFACE OPERATION ..................................................................................... 48
6.3 STATUS INTERFACE OPERATION ........................................................................................... 49
6.4 RESET CONFIGURATION INTERFACE OPERATION .............................................................. 51
7. SPACEWIRE ROUTER PACKET TYPES .................................................................................... 52
7.1 PACKET ADDRESSES................................................................................................................ 52
7.2 PACKET PRIORITY..................................................................................................................... 53
7.3 PACKET HEADER DELETION.................................................................................................... 53
7.4 INVALID ADDRESSES ................................................................................................................ 54
7.5 DATA PACKETS.......................................................................................................................... 55
7.6 COMMAND PACKETS ................................................................................................................ 55
7.6.1 Supported Commands .............................................................................................................. 55
7.6.2 Read Command ........................................................................................................................ 56
7.6.3 Read Incrementing Command .................................................................................................. 60
7.6.4 Read Modify Write Command................................................................................................... 65
7.6.5 Write Command ........................................................................................................................ 70
7.6.6 Command Error Response ....................................................................................................... 74
7.6.7 Command Packet Cyclic Redundancy Check .......................................................................... 76
7.6.8 Local Source Path Address ...................................................................................................... 76
7.6.9 Source Path Address Field ....................................................................................................... 77
7.6.10 Command Packet Fill Bytes.................................................................................................... 78
8. CONTROL LOGIC AND OPERATIONAL MODES....................................................................... 79
8.1 SPACEWIRE LINK CONTROL.................................................................................................... 79
8.1.1 Default operating mode............................................................................................................. 79