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ST72521AR9TB View Datasheet(PDF) - STMicroelectronics

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ST72521AR9TB Datasheet PDF : 211 Pages
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ST72521
16-BIT TIMER (Cont’d)
Figure 43. Counter Timing Diagram, internal clock divided by 2
CPU CLOCK
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER
TIMER OVERFLOW FLAG (TOF)
FFFD FFFE FFFF 0000 0001 0002 0003
Figure 44. Counter Timing Diagram, internal clock divided by 4
CPU CLOCK
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER FFFC
FFFD
TIMER OVERFLOW FLAG (TOF)
0000
0001
Figure 45. Counter Timing Diagram, internal clock divided by 8
CPU CLOCK
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER
FFFC
FFFD
0000
TIMER OVERFLOW FLAG (TOF)
Note: The MCU is in reset state when the internal reset signal is high, when it is low the MCU is running.
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