STCN75_08 Datasheet, PDF (21/35 Pages) STMicroelectronics – Digital temperature sensor and thermal watchdog

STCN75
Figure 6. Acknowledgement sequence
START
SCL FROM
MASTER
1
2
DATA OUTPUT
BY TRANSMITTER
MSB
DATA OUTPUT
BY RECEIVER
Functional description
CLOCK PULSE FOR
ACKNOWLEDGEMENT
8
9
LSB
AI00601
3.5
Note:
READ mode
In this mode the master reads the STCN75 slave after setting the slave address (see
Figure 7). Following the WRITE mode control bit (R/W=0) and the acknowledge bit, the word
address 'An' is written to the on-chip address pointer.
There are two READ modes:
● Preset pointer locations (e.g. temperature, T_OS and T_HYS registers), and
● Pointer setting (the pointer has to be set for the register that is to be read)
The temperature register pointer is usually the default pointer.
These modes are shown in the READ mode typical timing diagrams (see Figure 8, Figure 9,
and Figure 10 on page 22).
Figure 7. Slave address location
R/W
START
SLAVE ADDRESS
A
1 0 0 1 A2 A1 A0
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