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M41TC8025AMC7F bảng dữ liệu(PDF) 21 Page - STMicroelectronics

tên linh kiện M41TC8025AMC7F
Giải thích chi tiết về linh kiện  Highly accurate, temperature-compensated serial real-time clock (RTC) with embedded crystal
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M41TC8025AMC7F bảng dữ liệu(HTML) 21 Page - STMicroelectronics

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M41TC8025
Operation
2.6.4
Starting the fixed-cycle timer interrupt
The fixed-cycle timer interrupt internal counter value starts at the rising edge of the SCL
signal that occurs when the TE value is changed from "0" to "1" (after the LSB is
transferred). Refer to Figure 11 for a detailed illustration.
Figure 11. Fixed-cycle timer interrupt starting point
2.6.5
Stopping the fixed-cycle timer interrupt
When the RESET bit in control register 0Fh is 1, the clock divider <4 KHz is stopped. As a
result, the fixed-cycle timer interrupt with source clocks of 64 Hz, 1 Hz and "minute" update
will be stopped. The RESET bit will not affect the fixed-cycle timer interrupt with the source
clock of 4,096 Hz.
2.6.6
Example operation of the fixed-cycle timer interrupt
The fixed-cycle timer interrupt example is given in Figure 12. The fixed-cycle timer interrupt
timing sequence is given in Figure 13.
Figure 12. Example of fixed-cycle timer interrupt
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