- 您现在的位置：买卖IC网 > PDF目录236588 > BU-61559D1-100Q (DATA DEVICE CORP) 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 PDF资料下载
参数资料
| 型号： | BU-61559D1-100Q |
| 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, CQIP78 |
| 封装： | 45.70 X 53.30 MM, 5.30 MM HEIGHT, CERAMIC, DDIP-78 |
| 文件页数： | 32/32页 |
| 文件大小： | 438K |
| 代理商： | BU-61559D1-100Q |
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页当前第32页
9
Data Device Corporation
www.ddc-web.com
BU-61559 Series
E-03/06-0
BC CONTROL WORD
For each of the BC Message Block formats, the first word in the
block is the BC Control Word. The BC Control Word is not trans-
mitted on the 1553 bus. Instead, it contains bits that select the
active bus and message format, enable off-line self-test, and
specifies the “expected value” of the BROADCAST COMMAND
RECEIVED RT Status bit.
The BC Control Word is followed by the Command Word to be
transmitted, and subsequently by a second Command Word (for
an RT-to-RT transfer), followed by data words to be transmitted
(for Receive commands). The location after the last word to be
transmitted is reserved for the Loopback Word. The Loopback
Word is an on-line self-test feature in which the received version
of the last transmitted word is stored in the next location in the
shared RAM. The subsequent locations after the Loopback Word
are reserved for received Status Words and Data Words (for
transmit messages).
The next word in RAM after the BC Control Word is the MIL-STD-
1553B Command Word (for an RT-to-RT or RT-to-Broadcast
transfer, it is the first of two Command Words). This word is read
by the 1553 protocol logic and transmitted on the 1553 bus. The
(first) Command Word is possibly followed by a second
Command Word or Data Words to be read from RAM and trans-
mitted. The location in RAM after the last transmitted word is
reserved for the Loopback Word. Subsequent locations in the
shared RAM are reserved for Status and possibly Data Words
anticipated to be received from the responding RT(s). Assuming
that the RT responds before a BC response timeout occurs,
these word(s) are stored in the allocated locations in the shared
RAM. If the Loopback test passes, and the RT responds before
the BC Response Timer times out with a “Correct” RT Status
Word (correct RT address and the “expected value” for the lower
11 bits), followed by the correct number of valid data words, the
Block Status Word will be written to indicate “End of Message,
No Errors” during the BC End-of-Message sequence. Note that
for an RT-to-RT transfer, the BU-61559 BC checks the Status
Words from both the transmitting and receiving RTs.
FIGURE 12. BC CONTROL WORD
FIGURE 11. BC MEMORY MANAGEMENT
相关PDF资料 |
PDF描述 |
|---|---|
| BU-61559D1-120Q | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 |
| BU-61559D2-150K | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 |
| BU-61559D2-440 | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 |
| BU-61559D2-480K | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 |
| BU-61559D2-820S | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQIP78 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| BU-61580 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553 Components |ACE |
| BU-61580G1-100 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553/ARINC Bus Controller/RTU |
| BU-61580G1-110 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553/ARINC Bus Controller/RTU |
| BU-61580G1-120 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553/ARINC Bus Controller/RTU |
| BU-61580G1-200 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:MIL-STD-1553/ARINC Bus Controller/RTU |
发布紧急采购，3分钟左右您将得到回复。