Changes between Version 39 and Version 40 of InterconnexionNetworks

Timestamp:

Feb 6, 2013, 10:58:46 AM (12 years ago)

Author:

joannou

Comment:

--

InterconnexionNetworks

@@ -62 +62 @@
 === 3.1  VCI encoding of the various transaction types on the direct network ===
 
-There are 5 transaction types ('''READ''', '''WRITE''', '''LL''', '''SC''', '''CAS''') on the direct network, and there are four sub-typVCI '''CMD''' field and the VCI '''PKTID''' fields are used for the transaction type encoding. When a given initiator can send several se (such as several simultaneous '''WRITE''' transactions), the VCI '''TRDID''' field is used.
+There are 5 transaction types ('''READ''', '''WRITE''', '''LL''', '''SC''', '''CAS''') on the direct network, and four sub-types for '''READ''' transactions. These types are encoded through the pair of VCI fields '''CMD''' and '''PKTID'''. When a given initiator can send several simultaneous transactions of a given type (such as several simultaneous '''WRITE''' transactions), the VCI '''TRDID''' field is used to discriminate them.
 
 Possible values for the VCI '''CMD''' field are :
@@ -73 +73 @@
 || 11                || CMD_LOCKED_READ          ||
 
-The '''PKTID''' field in TSAR is 4 bits long. Only 8 types of transaction are used : the MSB is ignored (reserved for future use). A sper each '''PKTID''' value, as described in the table below :
+The '''PKTID''' field in TSAR is 4 bits long. Only 8 types of transaction are used : the MSB is ignored (reserved for future use). A specific VCI '''CMD''' value must be used for each '''PKTID''' value, as described in the table below :
 
 || encoding (4 bits) || '''PKTID''' value   || '''CMD''' value ||