Cache Controller State Machine
Cache Controller State Machine
Cache
Controller
State Machine
Active
Transaction
Table
Block 0
Block 1
Block 2
Block 3
Block Addr
SB Addr
Mask
Sub RWI
Sub RWW
Msg Type
Home Node
State
Protocol
COH Index
Block Addr Block Physical Address
SB Addr Shared Buffer Address
Mask Valid Word Mask
Sub RWI Subblock Read Write Issue
Sub RWW Subblock Read Write Wait
Msg Type Type of the Message
Home Node Home Node Number
State Directory State
Protocol DSM Protocol
COH Index Coherency Index
Tag &
Status
Ram
State
SB Addr
Upd Count