STDS75DS2E STMICROELECTRONICS [STMicroelectronics], STDS75DS2E Datasheet - Page 16

• Manufacturer Part Number: STDS75DS2E
• Description: Digital temperature sensor and thermal watchdog
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

3
3.1
3.1.1
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Functional description
The STDS75 registers have unique pointer designations which are defined in
page
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
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Registers and register set formats
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
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.
Pointer
Value
(H)
00
01
02
03
MSB
Bit7
Command Register/Address Pointer Register
Configuration Register
Temperature Register
Over-Limit Signal Temperature Register (T
Hysteresis Temperature Register (T
0
16. Whenever any READ/WRITE operation to the STDS75 register is desired, the
P1
0
0
1
1
Command/pointer register format
Register pointers selection summary
Serial interface on page
Bit6
0
P0
0
1
0
1
TEMP
CONF
Name
T
T
HYS
OS
Bit5
0
Configuration
Description
Temperature
temperature
Hysteresis
Shutdown
Register
Register
Register
Over-
20), and they include:
Bit4
0
HYS
)
Width
(Bits)
OS
16
16
16
8
Bit3
)
0
(R/W)
Read
Type
only
R/W
R/W
R/W
Power-on
Bit2
default
0
4800
5000
N/A
00
To store Measured
Temperature Data
Default = 75°C
Set point for Over-
temperature
Shutdown (T
default = 80°C
Bit1
P1
Comments
Pointer
Table 5 on
Table
OS
Bit0
4).
LSB
P0
) limit