參數(shù)資料
型號(hào): BU-62743B3-180L
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, BGA128
封裝: 0.815 X 0.815 INCH, 0.140 INCH HEIGHT, 1 MM PITCH, BGA-128
文件頁數(shù): 44/93頁
文件大小: 504K
代理商: BU-62743B3-180L
Data Device Corporation
62743_pre2.DOC
www.ddc-web.com
8-15-01
49
common circular buffer structure. Like the subaddress circular buffer, the size of
the global circular buffer is programmable, with a range of 128 to 8192 data words.
The double buffering feature provides a means for the host processor to easily
access the most recent, complete received block of valid Data Words for any given
subaddress. In addition to helping ensure data sample consistency, the circular
buffer options provide a means of greatly reducing host processor overhead for
multi-message bulk data transfer applications.
End-of-message interrupts may be enabled either globally (following all
messages), following error messages, on a transmit/receive/broadcast subaddress
or mode code basis, or when a circular buffer reaches its midpoint (50% boundary)
or lower (100%) boundary. A pair of interrupt status registers allow the host
processor to determine the cause of all interrupts by means of a single
read
operation.
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