Changes between Version 22 and Version 23 of InterconnexionNetworks

Timestamp:

Aug 29, 2010, 6:21:27 PM (14 years ago)

Author:

alain

Comment:

--

InterconnexionNetworks

@@ -110 +110 @@
 
 The VCI command & response packets are translated (actually serialized) to a more convenient DSPIN network format by the VCI/RING wrappers located between the VCI initiator and target components and the DSPIN network. The DSPIN command packet width is 40 bits, and the DSPIN response packet width is 33 bits. The DSPIN interconnexion network uses only the following information to route both the DSPIN packets to the proper destination:
- * the MSB bit is the EOP flag, defining the last flit of a DSPIN packet.
- * the LSB bit of the first flit is the BC flag,  defining a DSPIN broadcast packet. 
- * For a non broadcast packet (BC = 0), the first flit contains a 38 bits ADDRESS field (defining an aligned  32 bits word address). The (NX+NY+NL) MSB bits of this ADDRESS field are used to route  the packet to the proper destination.
- * For a broadcast packet (BC = 1), the first flit contains the 20 MSB bits of the ADDRESS field contain the XMIN, XMAX, YMIN, YMAX fields (5 bits each), that are used by the network to limit the broadcast.
+ * The MSB bit is the EOP flag, defining the last flit of a DSPIN packet.
+ * The LSB bit of the first flit is the BC flag,  defining a DSPIN broadcast packet. 
+ * For a response packet, BC=0 and the RSRCID field is used to route the packet to the proper destination.
+ * For a non broadcast command packet, BC = 0), and the (NX+NY+NL) MSB bits of the ADDRESS field are used to route  the packet to the proper destination.
+ * For a broadcast packet, BC = 1, and the XMIN, XMAX, YMIN, YMAX fields (5 bits each), are used by the network to limit the broadcast.
 
-There is actually Five types of DSPIN packets:
+The five types of DSPIN packets are defined below:
 
 ==== 3.3.1      DSPIN Read Command packet format (40 bits) ====