參數(shù)資料
型號(hào): DS1615S
元件分類: 溫度傳感器
英文描述: Temperature Recorder
中文描述: 溫度記錄儀
文件頁(yè)數(shù): 19/24頁(yè)
文件大小: 199K
代理商: DS1615S
DS1615
19 of 24
1. Write Byte (22h)
Host Transmit:
D7
0
0
d7
D6
0
a6
d6
D5
1
a5
d5
D4
0
a4
d4
D3
0
a3
d3
D2
0
a2
d2
D1
1
a1
d1
D0
0
a0
d0
DS1615 Response: None
Note that good programming practice insists that the Clear Memory command should be issued whenever
the DS1615 is programmed to begin a new datalogging mission.
2. Read Page (33h)
Host Transmit:
D7
0
a15
a7
D6
0
a14
a6
D5
1
a13
a5
D4
1
a12
a4
D3
0
a11
a3
D2
0
a10
a2
D1
1
a9
a1
D0
1
a8
a0
DS1615 Response (Host Receives):
D7
D6
D5
D4
D3
D2
D1
D0
register a[15..0]
register xxxh
Where xxx represents the last register of the page that has been accessed.
When in asynchronous mode, the TX pin becomes inactive after the last register in the page and the CRC
have been transmitted. In synchronous mode, the DS1615 will continue to transmit data as long as clocks
are presented to the serial interface. If clocks are presented after the final data bit of the last register in
the page, the DS1615 will wrap-around to the first register in the page and sequentially transmit data as
long as the clocks continue.
3. Specification Test (44h)
Host Transmit:
D7
D6
D5
D4
D3
D2
D1
D0
0
1
0
0
0
1
0
0
DS1615 Response (Host Receives): Either the
INSPEC
or
OUTSPEC
pin will generate four low pulses.
Each pulse will be 62.5 ms in duration and will start every half second.
This command instructs the DS1615 to generate four low pulses on either the
INSPEC
or
OUTSPEC
LED
driver pins. The pin that is driven is dependent upon whether any data samples fell outside of the High
Temperature and Low Temperature Threshold boundaries. These pins, when used to drive LEDs, can be
used to provide a quick visual confirmation as to whether the temperature remained within the user-
defined limits.
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