參數(shù)資料
型號(hào)： BU-61703G3-200W
廠(chǎng)商： DATA DEVICE CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 2 CHANNEL(S), 1M bps, MIL-STD-1553 CONTROLLER, CQFP72
封裝： CERAMIC, QFP-72
文件頁(yè)數(shù)： 36/54頁(yè)
文件大?。?/td> 576K
代理商： BU-61703G3-200W
41
Data Device Corporation
www.ddc-web.com
BU-61703/61705
D1 web-09/02-0
SELECTED TRANSMITTER SHUTDOWN ( T/R = 0; 10100)
MESSAGE SEQUENCE = TRANSMITTER SHUTDOWN/DATA + STATUS
The Data Word received is transferred to the subsystem and Status is transmitted. No other action is taken by the SSRT. No transmitters are
shut down as a result of this mode command. This command is intended for use with RTs with more than one dual redundant channel. If the
command was a broadcast, the Broadcast Command Received bit is set and Status transmission is suppressed.
ERROR CONDITIONS
1. Invalid Command. No response, command ignored.
2. Command Not Followed by Data Word. No Status response. Set Message Error bit (Status Word), and Low Word Count Bit (BIT Word).
No status response. Bits Set: message error (SW), High Word Count, Illegal Mode Code (BIT Word)
3. Command Followed by too many Data Words. No Status response. Set Message Error bit (Status Word), and High Word Count Bit
(BIT Word).
4. Command T/R bit Set to One followed by one Data Word. No Status response. Set Message Error bit (Status Word), and High Word
Count (BIT Word).
5. Command T/R bit Set to One not followed by Data Word. The SSRT replies with Status plus one Data Word. The Data Word is read
from the subsystem.
6. Command T/R bit Set to One and Broadcast Address. No Status response. Set Message Error and Broadcast Command Received bits
(Status Word), and Command Contents Error (BIT Word).
TRANSMIT BIT WORD ( T/R = 1; 10011)
MESSAGE SEQUENCE = TRANSMIT BIT WORD + STATUS/BIT WORD
The SSRT responds with Status followed by the Built-in Test (BIT) word.
ERROR CONDITIONS
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No Status response. Set Message Error bit (Status Word), High Word Count Error (Bit Word).
3. T/R bit Set to Zero, no Data Word. No Status response. Set Message Error bit (Status Word), Low Word Count (BIT Word).
4. T/R bit Set to Zero, plus one Data Word. The SSRT will respond with Status. The Data Word is transferred to internal registers.
5. Zero T/R bit and Broadcast Address, no Data Word. No Status response. Set Message Error and Broadcast Received bits (Status Word),
Low Word Count Error (BIT Word).
6. Zero T/R bit and Broadcast Address, one Data Word. No Status response. Set Broadcast Received Bit (status word). The Data Word is
transferred to internal registers.
7. Broadcast Address. No Status response. Set Message Error and Broadcast Command received bits (Status Word), Command Word
contents Error (BIT Word).
TRANSMIT LAST COMMAND ( T/R = 1; 10010)
MESSAGE SEQUENCE = TRANSMIT LAST COMMAND + STATUS/LAST COMMAND
The Status register is not updated before transmission. It contains the Status from the previous command. The Data Word transmitted contains
the previous valid command (providing it was not another TRANSMIT LAST COMMAND or TRANSMIT STATUS WORD mode command).
ERROR CONDITIONS
1. Invalid Command. No response, command ignored.
2. Command Followed by Data Word. No Status response. Set Message Error bit (Status Word), High Word Count Error (Bit Word).
3. T/R bit Set to Zero, no Data Word. No Status response. Set Message Error bit (Status Word), Low Word Count (BIT Word).
4. T/R bit Set to Zero, plus one Data Word. The SSRT will respond with Status. The Data Word is transferred to the internal register.
5. Zero T/R bit and Broadcast Address, no Data Word. No Status response. Set Message Error and Broadcast Received bits (Status Word),
Low Word Count Error(BIT Word).
6. Zero T/R bit and Broadcast Address, one Data Word. No Status response. Set Broadcast Received Bit (status word). The Data Word is
transferred to the internal register.
7. Broadcast Address. No Status response. Set Message Error and Broadcast Command Received bits (Status Word), Command Word
Contents Error (BIT Word).
相關(guān)PDF資料
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