參數(shù)資料
型號(hào): UTI760A
廠商: Electronic Theatre Controls, Inc.
英文描述: UTI760A RTS Remote Terminal for Stores
中文描述: UTI760A轉(zhuǎn)運(yùn)站遠(yuǎn)程終端為商店
文件頁數(shù): 4/48頁
文件大?。?/td> 928K
代理商: UTI760A
RTS-4
1.2 RTS RAM Pointer Structure
The RAM 16-bit pointers have a 6-bit index field and a
10-bit address field. The 6-bit index field allows for the
storage of up to 64 messages per subaddress. A message
consists of the 1553 command word and its associated
data words.
The 16-bit pointer for Transmit Last Command Mode Code
is located at memory location 3E0 (hex). The Transmit Last
Command Mode Code pointer buffers up to 63 command
words. An example of command word storage follows:
Example:
3E0 (hex)
Contents = FC00 (hex)
11 1111 00 0000 0000
Address Field = 000 (hex)
Index Field = 3F (hex)
First command word storage location (3E0 = F801):
Address Field = 001 (hex)
Index Field = 3E (hex)
Sixty-third command word storage location
(3E0 = 003F):
Address Field = 03F (hex)
Index Field = 00 (hex)
Sixty-fourth command word storage location (3E0 = 003F)
(previous command word overwritten):
Address Field = 03F (hex)
Index Field = 00 (hex)
The Transmit Last Command Mode Code has Address Field
boundary conditions for the location of command word
buffers. The host can allocate a maximum 63 sequential
locations following the Address Field starting address. For
proper operation, the Address Field must start on an I x 40
(hex) address boundary, where I is greater than or equal to
zero and less than or equal to 14. A list of valid Index and
Address Fields follows:
Figure 3. Message Pointer Structure
MESSAGE INDEX
MESSAGE DATA ADDRESS
15 (MSB)
0 (LSB)
Message Index:
Defines the maximum
messages buffered for the
given subaddress.
Message Data Address:
Indicates the starting memory
address for incoming message
storage.
10
9
I
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Valid Index Fields
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
3F (hex) to 00 (hex)
Valid Address Fields
000 (hex) to 03F(hex)
040 (hex) to 07F (hex)
080 (hex) to 0BF(hex)
0C0 (hex) to 0FF (hex)
100 (hex) to 13F (hex)
140 (hex) to 17F (hex)
180 (hex) to 1BF (hex)
1C0 (hex) to 1FF (hex)
200 (hex) to 23F (hex)
240 (hex) to 27F (hex)
280 (hex) to 2BF (hex)
2C0 (hex) to 2FF (hex)
300 (hex) to 33F (hex)
340 (hex) to 37F (hex)
380 (hex) to 3BF (hex)
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