Basic Mesi State Transitions - Intel 82496 CACHE CONTROLLER User Manual

COMPONENT OPERATION
Table 3-1. Basic MESI State Transitions
Current State Action New State Memory Bus Activity
read M none
M write
M none
snoop E,S,I write-back
read
E
none
E write M none
snoop E,S,I none
read
S
none
S write M,E,S write-through
snoop S,I none
read
M,E,S,I linefill
I write M,E,S,I write-through
snoop I none
3-4
I