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參數(shù)資料
| 型號： | BU-62864F4-490S |
| 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(shù)： | 64/99頁 |
| 文件大?。?/td> | 578K |
| 代理商： | BU-62864F4-490S |
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Data Device Corporation
62743_pre7_noSA-DB.DOC
www.ddc-web.com
8-07-02
67
Table 59. Typical Word Monitor Memory Map
HEX ADDRESS
FUNCTION
0000
First Received 1553 Word
0001
First Identification Word
0002
Second Received 1553 Word
0003
Second Identification Word
0004
Third Received 1553 Word
0005
Third Identification Word
0100
Stack Pointer (Fixed Location – gets overwritten)
FFFF
Received 1553 words and Identification words
WORD MONITOR TRIGGER
In the Word Monitor mode, there is a pattern recognition trigger and a pattern
recognition interrupt. The 16-bit compare word for both the trigger and the interrupt
is stored in the Monitor Trigger Word Register. The pattern recognition interrupt is
enabled by setting the MT Pattern Trigger bit in the Interrupt Mask Register. The
pattern recognition trigger is enabled by setting the Trigger Enable bit in
Configuration Register #1 and selecting either the Start-on-trigger or the Stop-on-
trigger bit in Configuration Register #1.
The Word Monitor may also be started by means of a low-to-high transition on
the EXT_TRIG input signal.
SELECTIVE MESSAGE MONITOR MODE
The PCI Enhanced Mini-ACE Selective Message Monitor provides monitoring of
1553 messages with filtering based on RT address, T/R bit, and subaddress with
no host processor intervention. By autonomously distinguishing between 1553
command and status words, the Message Monitor determines when messages
begin and end, and stores the messages into RAM, based on a programmable
filter (RT address, T/R bit, and subaddress).
The selective monitor may be configured as just a monitor, or as a combined
RT/Monitor. In the combined RT/Monitor mode, the PCI Enhanced Mini-ACE
functions as an RT for one RT address (including broadcast messages), and as a
selective message monitor for the other 30 RT addresses. The PCI Enhanced
Mini-ACE Message Monitor contains two stacks, a command stack and a data
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