- 您現在的位置：買賣IC網 > PDF目錄166599 > BU-62843G3-182Y (DATA DEVICE CORP) 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 PDF資料下載
參數資料
| 型號： | BU-62843G3-182Y |
| 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, CQFP72 |
| 封裝： | 1 INCH, CERAMIC, QFP-72 |
| 文件頁數： | 43/99頁 |
| 文件大?。?/td> | 578K |
| 代理商： | BU-62843G3-182Y |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁當前第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁
Data Device Corporation
62743_pre7_noSA-DB.DOC
www.ddc-web.com
8-07-02
48
BC MESSAGE SEQUENCE CONTROL
The PCI Enhanced Mini-ACE BC message sequence control capability enables a
high degree of offloading of the host processor. This includes using the various
timing functions to enable autonomous structuring of major and minor frames. In
addition, by implementing conditional jumps and subroutine calls, the message
sequence control processor greatly simplifies the insertion of asynchronous, or
“out-of-band” messages.
Execute and Flip Operation. The PCI Enhanced Mini-ACE BC’s XQF, or
“Execute and Flip” operation, provides some unique capabilities. Following
execution of this unconditional instruction, if the condition code tests TRUE, the
BC will modify the value of the current XQF instruction’s pointer parameter by
toggling bit 4 in the pointer. That is, if the selected condition flag tests true, the
value of the parameter will be updated to the value = old address XOR 0010h.
As a result, the next time that this line in the instruction list is executed, the
Message Control/Status Block at the updated address (old address XOR 0010h),
will be processed, rather than the one at the old address,. The operation of the
XQF instruction is illustrated in Figure 4.
There are multiple ways of utilizing the “execute and flip” functionality. One is to
facilitate the implementation of a double buffering data scheme for individual
messages. This allows the message sequence control processor to “ping-pong”
between a pair of data buffers for a particular message. By so doing, the host
processor can access one of the two Data Word blocks, while the BC reads or
writes the alternate Data Word block.
A second application of the “execute and flip” capability is in association with
message retries. This allows the BC to not only switch buses when retrying a failed
message, but to automatically switch buses permanently for all future times that
the same message is to be processed. This not only provides a high degree of
autonomy from the host CPU, but saves BC bandwidth, by eliminating future
attempts to process messages on an RT’s failed channel.
相關PDF資料 |
PDF描述 |
|---|---|
| BU-62843G3-202W | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-62843G3-292W | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-62843G3-300S | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-62843G3-392 | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
| BU-62843G3-422K | 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72 |
相關代理商/技術參數 |
參數描述 |
|---|---|
| BU-62864 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:MIL-STD-1553 Components |PCI-Enhanced Mini-ACE? |
| BU-62-9 | 功能描述:測試電夾 INSULATOR FOR 60 SERIES WHITE RoHS:否 制造商:Pomona Electronics 類型:Minigrabber clip 顏色:Black |
| BU-62-BLU | 制造商:Mueller Electric Company 功能描述:Cable Accessories Insulator Vinyl Blue |
| BU-62S-0 | 功能描述:INSULATOR FOR BU-60 SERIES BLK 制造商:mueller electric co 系列:BU 零件狀態(tài):有效 類型:測試夾，引線，探針 配件類型:絕緣體，黑色 配套使用產品/相關產品:鱷魚夾：BU-60，BU-60C，BU-60CS，BU-60PR2，BU-60S，BU-60TBO，BU-60U，BU-60X，BU-61 規(guī)格:- 標準包裝:1 |
| BU-62S-2 | 功能描述:INSULATOR FOR BU-60 SERIES RED 制造商:mueller electric co 系列:BU 零件狀態(tài):有效 類型:測試夾，引線，探針 配件類型:絕緣體，紅色 配套使用產品/相關產品:鱷魚夾：BU-60，BU-60C，BU-60CS，BU-60PR2，BU-60S，BU-60TBO，BU-60U，BU-60X，BU-61 規(guī)格:- 標準包裝:1 |
發(fā)布緊急采購，3分鐘左右您將得到回復。