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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(yè)數(shù)： | 29/89頁(yè) |
| 文件大小： | 569K |
| 代理商： | NHI-1598ET/883 |
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34
PULSE( 3: 0)
Bits: 11:8
This field defines which pin should be pulsed at the end of a valid message which
accesses the data table (see CMDO in the CONTROL register for details). The
field is defined as follows:
PULSE FIELD VALUE
PULSED OUTPUT PIN
0
NO PULSE
1 – 8
I/O DATA(7..0)
14
PLSCMD PIN
LOCK
Bits: 7
1= Indicates that the protocol chip is currently using the table for a message, either
writing receive data or reading transmit data.
INVALID
Bits: 6
1= Indicates that the table contains invalid data.
OVW
Bits: 5
1= Indicates that data received from the Mil Bus caused the data to be overwritten
before its previous contents were read by the host or that the host did not update
the data since the last transmission (i. e., whenever data is transmitted from a table
with UPD= 0, or is stored into a table with UPD= 1). This bit is similar to the
subsystem flag returned to the Bus Controller when SSFENA= 1.
WCNT( 4: 0)
Bits: 4-0
This field contains the word count/ mode code in the command which referenced
the data table.
4.3.3
DATA TABLE POINTER WORD
The Data Table Pointer Word has the following format:
15
14
13
12
11
10
9
8
INTREQ
RTCENA
1
ADDR
13
ADDR
12
ADDR
11
ADDR
10
ADDR
09
ADDR
08
7
6
5
4
3
2
1
0
ADDR
07
ADDR
06
ADDR
05
ADDR
04
ADDR
03
ADDR
02
ADDR
01
RTCENA
0
INTREQ
Bits: 15
1= Specifies that an interrupt shall be issued after the completion of a message which
accesses the data table and a header pushed on to the Fifo,.
0= No interrupt issued; nothing pushed on to Fifo.
ADDR( 13: 1)
Bits: 13:1
Defines the location of the RTU data table which MUST be in the lower 8K word address space.
The RTU data tables always begin on word boundaries. The least significant bit of the word
address is bit 1 in the Pointer word. If the data table address field is set to 0, the command
associated with the pointer is illegalized.
with the pointer is illegalized.
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