LOOK-UP TABLE
(DATA BLOCK ADDR)
DESCRIPTOR
STACKS
CONFIGURATION
REGISTER
STACK
POINTERS
DATA
BLOCKS
15 13
0
CURRENT
AREA B/A
BLOCK STATUS WORD
TIME TAG WORD
LOOK-UP
TABLE ADDR
DATA BLOCK
DATA BLOCK
DATA BLOCK POINTER
RECEIVED COMMAND
WORD
FIGURE 10. RT MEMORY MANAGEMENT: SINGLE MESSAGE MODE
CIRCULAR
DATA
CONFIGURATION
REGISTER
STACK
POINTERS
DESCRIPTOR
STACK
LOOK-UP TABLES
BUFFER
15
13
0
CURRENT
AREA B/A
BLOCK STATUS WORD
TIME TAG WORD
POINTER TO
CURRENT
DATA BLOCK
LOOK-UP
TABLE
ADDRESS
DATA BLOCK POINTER
128,
256
LOOK-UP TABLE
ENTRY
RECEIVED COMMAND
WORD
RECEIVED
(TRANSMITTED)
MESSAGE
DATA
POINTER TO
NEXT DATA
BLOCK
*
8192
WORDS
(NEXT LOCATION)
CIRCULAR
BUFFER
ROLLOVER
*
TX/RS/BCST_SA LOOK-UP TABLE ENTRY IS UPDATED
FOLLOWING VALID RECEIVE (BROADCAST) MESSAGE OR
FOLLOWING COMPLETION OF TRANSIT MESSAGE.
FIGURE 11. RT MEMORY MANAGEMENT: CIRCULAR BUFFER MODE
20
ETC [ ETC ]
