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參數(shù)資料
| 型號： | STDS75M2E |
| 廠商： | 意法半導(dǎo)體 |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Digital temperature sensor and thermal watchdog |
| 中文描述： | 數(shù)字溫度傳感器和熱看門狗 |
| 文件頁數(shù)： | 16/37頁 |
| 文件大小： | 204K |
| 代理商： | STDS75M2E |
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Functional description
STDS75
16/37
3
Functional description
The STDS75 registers have unique pointer designations which are defined in
Table 5 on
page 16
. Whenever any READ/WRITE operation to the STDS75 register is desired, the
user must “point” to the device register to be accessed.
All of these user-accessible registers can be accessed via the digital serial interface at
anytime (see
Serial interface on page 20
), and they include:
Command Register/Address Pointer Register
Configuration Register
Temperature Register
Over-Limit Signal Temperature Register (T
OS
)
Hysteresis Temperature Register (T
HYS
)
●
●
●
●
●
3.1
Registers and register set formats
3.1.1
Command/pointer register
The Most Significant Bits (MSBs) of the Command Register must always be zero. Writing a
'1' into any of these bits will cause the current operation to be terminated (see
Table 4
).
The Command Register retains pointer information between operations. Therefore, this
register only needs to be updated once for consecutive READ operations from the same
register. All bits in the Command Register default to '0' at power-up.
Table 4.
Table 5.
Command/pointer register format
MSB
LSB
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
0
0
0
0
0
0
P1
P0
Pointer
Register pointers selection summary
Pointer
Value
(H)
P1
P0
Name
Description
Width
(Bits)
Type
(R/W)
Power-on
default
Comments
00
0
0
TEMP
Temperature
Register
16
Read
only
N/A
To store Measured
Temperature Data
01
0
1
CONF
Configuration
Register
8
R/W
00
02
1
0
T
HYS
Hysteresis
Register
16
R/W
4800
Default = 75°C
03
1
1
T
OS
Over-
temperature
Shutdown
16
R/W
5000
Set point for Over-
temperature
Shutdown (T
OS
) limit
default = 80°C
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