- 您现在的位置：买卖IC网 > PDF目录223464 > BU-61864G4-122Y (DATA DEVICE CORP) 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, MQFP72 PDF资料下载
参数资料
| 型号： | BU-61864G4-122Y |
| 厂商： | DATA DEVICE CORP |
| 元件分类： | 微控制器/微处理器 |
| 英文描述： | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, MQFP72 |
| 封装： | GULL WING, PACKAGE-72 |
| 文件页数： | 18/56页 |
| 文件大小： | 321K |
| 代理商： | BU-61864G4-122Y |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页当前第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页
25
FIGURE 7. RT DOUBLE BUFFERED MODE
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 8. RT CIRCULAR BUFFERED 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
1. TX/RS/BCST_SA look-up table entry is updated following valid receive (broadcast) message
or following completion of transit message
Notes:
*
2. For the Global Circular Buffer Mode, the pointer is read from and re-written to Address 0101 (for Area A)
or Adress 0105 (for Area B).
GLOBAL CIRCULAR BUFFER
Beyond the programmable choice of single buffer mode, double
buffer mode, or circular buffer mode, programmable on an indi-
vidual subaddress basis, the Enhanced Mini-ACE RT architec-
ture provides an additional option, a variable sized global circu-
lar buffer. The Enhanced Mini-ACE RT allows for a mix of single
buffered, double buffered, and individually circular buffered sub-
addresses, along with the use of the global double buffer for any
arbitrary group of receive(/broadcast) or broadcast subaddress-
es.
In the global circular buffer mode, the data for multiple receive
subaddresses is stored in the same circular buffer data structure.
The size of the global circular buffer may be programmed for
128, 256, 512, 1024, 2048, 4096, or 8192 words, by means of
bits 11, 10, and 9 of Configuration Register #6. As shown in
TABLE 40, individual subaddresses may be mapped to the glob-
al circular buffer by means of their respective subaddress control
words.
The pointer to the Global Circular Buffer will be stored in location
0101 (for Area A), or location 0105 (for Area B).
The global circular buffer option provides a highly efficient
method for storing received message data. It allows for fre-
quently used subaddresses to be mapped to individual data
blocks, while also providing a method for asynchronously
received messages to infrequently used subaddresses to be
logged to a common area. Alternatively, the global circular
buffer provides an efficient means for storing the received data
words for all subaddresses. Under this method, all received
data words are stored chronologically, regardless of subad-
dress.
相关PDF资料 |
PDF描述 |
|---|---|
| BU-61865F4-192 | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-61865G4-162K | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, MQFP72 |
| BU-61745G4 | 2 CHANNEL(S), MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-61843F3 | 2 CHANNEL(S), MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-61860B3-601 | 2 CHANNEL(S), MIL-STD-1553 CONTROLLER, PBGA128 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BU-61864G4-200 | 制造商:DDC 功能描述:MIL-STD-1553/ARINC BUS CONTROLLER/RTU, 72 Pin, QFP |
| BU-61865 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553 Components |Enhanced Mini-ACE? |
| BU-61865F3-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| BU-61865F3-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
| BU-61865F4-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Telecommunication IC |
发布紧急采购，3分钟左右您将得到回复。