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參數(shù)資料
| 型號： | BU-61585G2-490Q |
| 廠商： | DATA DEVICE CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CDSO70 |
| 封裝： | GULLWING PACKAGE-70 |
| 文件頁數(shù)： | 8/44頁 |
| 文件大?。?/td> | 563K |
| 代理商： | BU-61585G2-490Q |
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16
Data Device Corporation
www.ddc-web.com
BU-65170/61580/61585
H1 web-09/02-0
FIGURE 5. RT MEMORY MANAGEMENT: SINGLE MESSAGE MODE
DATA
BLOCKS
DATA BLOCK
BLOCK STATUS WORD
TIME TAG WORD
DATA BLOCK POINTER
RECEIVED COMMAND
WORD
DESCRIPTOR
STACKS
LOOK-UP
TABLE ADDR
LOOK-UP TABLE
(DATA BLOCK ADDR)
15
13
0
CURRENT
AREA B/A
CONFIGURATION
REGISTER
STACK
POINTERS
(See note)
Note: Lookup table is not used for mode commands when enchanced mode codes are enabled.
FIGURE 6. RT MEMORY MANAGEMENT: CIRCULAR BUFFER MODE
CIRCULAR
BUFFER
ROLLOVER
15
13
0
RECEIVED
(TRANSMITTED)
MESSAGE
DATA
(NEXT LOCATION)
128,
256
8192
WORDS
POINTER TO
CURRENT
DATA BLOCK
POINTER TO
NEXT DATA
BLOCK
LOOK-UP TABLE
ENTRY
CIRCULAR
DATA
BUFFER
LOOK-UP TABLES
LOOK-UP
TABLE
ADDRESS
BLOCK STATUS WORD
TIME TAG WORD
DATA BLOCK POINTER
RECEIVED COMMAND
WORD
CONFIGURATION
REGISTER
STACK
POINTERS
DESCRIPTOR
STACK
CURRENT
AREA B/A
TX/RS/BCST_SA LOOK-UP TABLE ENTRY IS UPDATED
FOLLOWING VALID RECEIVE (BROADCAST) MESSAGE OR
FOLLOWING COMPLETION OF TRANSIT MESSAGE.
*
15
13
0
BLOCK STATUS WORD
TIME TAG WORD
DATA BLOCK POINTER
RECEIVED COMMAND
WORD
CONFIGURATION
REGISTER
STACK
POINTERS
DESCRIPTOR
STACK
CURRENT
AREA B/A
DATA
BLOCKS
DATA
BLOCK 1
DATA
BLOCK 0
X..X 0 YYYYY
X..X 1 YYYYY
RECEIVE DOUBLE
BUFFER ENABLE
SUBADDRESS
CONTROL WORD
MSB
DATA BLOCK POINTER
LOOK-UP
TABLES
FIGURE 7. RT MEMORY MANAGEMENT: SUBADDRESS DOUBLE BUFFERING MODE
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