參數(shù)資料
型號(hào): NHI-1598ET/883
廠商: NATIONAL HYBRID INC
元件分類: 微控制器/微處理器
英文描述: 2 CHANNEL(S), MIL-STD-1553 CONTROLLER, CPGA69
封裝: 1.100 X 1.100 INCH, CERAMIC, PLUG IN, PGA-69
文件頁數(shù): 40/89頁
文件大小: 569K
代理商: NHI-1598ET/883
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44
4.5.6
MESSAGE MONITOR MESSAGE TABLE FORMATS
RECEIVE COMMAND
RECEIVE STATUS RESPONSE
TAG WORD
RECEIVE COMMAND
STATUS WORD
TIME TAG MS WORD
TIME TAG LS WPRD
TIME TAG LS WORD
DATA WORD(S)
TRANSMIT COMMAND
TRANSMIT STATUS RESPONSE
TAG WORD
TRANSMIT COMMAND
STATUS WORD
TIME TAG MS WORD
TIME TAG LS WORD
DATA WORD(S)
RT-RT COMMAND
RT-RT TRANSMIT STATUS
TAG WORD
RECEIVE COMMAND
STATUS WORD
TIME TAG MS WORD
TIME TAG LS WORD
TRANSMIT COMMAND
DATA WORD(S)
RT-RT RECEIVE STATUS
TAG WORD
STATUS WORD
TIME TAG MS WORD
TIME TAG LS WORD
4.6.0
WORD MONITOR DATA TABLES
The Word Monitor is organized and controlled by two registers, the BLOCK A/ B START and the
BLOCK A/ B END registers. The data table mapping scheme used by the monitor is illustrated
the figure.
The Block Start register contains the address of the start of the data block, while the Block
End register contains the end address of the data block; therefore, the amount of ram used by the
data block is defined by these two registers. Notice, however, that the Block End register can
contain the address of any one of the four words associated with the last word monitored in the
block. This is a result of keeping the last four words in contiguous ram locations. The last address
register, though, always contains the address of the last word in the data block. The address in
this register is calculated by the ET and place in the Last Address register which is read only;
therefore, when defining the ram space for a data block in the word monitor, always leave the
next four locations after the block end address open. This will provide the reserve memory
required to keep all the data in the block contiguous.
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