ST72652R4T1 查看數據表（PDF） - STMicroelectronics

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ST72652R4T1

LOW-POWER, FULL-SPEED USB 8-BIT MCU WITH 32K FLASH, 5K RAM, FLASH CARD I/F, TIMER, PWM, ADC, I2C, SPI

STMicroelectronics 

ST7265x

16-BIT TIMER (Cont’d)

Figure 46. 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 47. 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 48. 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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