STDS75 Datasheet, PDF (24/37 Pages) STMicroelectronics – Digital temperature sensor and thermal watchdog

Functional description
Figure 9. Typical 2-byte READ from preset pointer location (e.g. temp - T_OS, T_HYS)
1
91
91
9
STDS75
1
Start
by
Master
0 0 1 A2 A1 A0 R
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Address Byte
Most Significant Data Byte
ACK
by
STDS75
Least Significant Data Byte
ACK
by
Master
Stop
Cond.
No ACK by
by Master
Master
AI12281b
Figure 10. Typical pointer set followed by an immediate READ for 2-byte register (e.g. temp)
1
91
9
1 0 0 1 A2 A1 A0 W
0 0 0 0 0 0 D1 D0
Start
by
Master
Address Byte
ACK
by
STDS75
Pointer Byte
ACK
by
STDS75
1
91
91
9
1
Repeat
Start
by
Master
0 0 1 A2 A1 A0 R
D7 D6 D5 D4 D3 D2 D1 D0
D7 D6 D5 D4 D3 D2 D1 D0
Address Byte
Most Significant Data Byte
ACK
by
STDS75
Least Significant Data Byte
ACK
by
Master
Stop
Cond.
No ACK by
by Master
Master
AI12282b
Figure 11. Typical 1-byte READ from the configuration register with preset pointer
1
91
9
1
Start
by
Master
0 0 1 A2 A1 A0 R
D7 D6 D5 D4 D3 D2 D1 D0
Address Byte
ACK
by
STDS75
Data Byte
No ACK
by
Master
Stop
Cond.
by
Master
AI12283b
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