ST7232AK1 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

ST7232AK1

8-BIT MICROCONTROLLER WITH 8K FLASH/ROM, ADC, 4 TIMERS, SPI, SCI INTERFACE

STMicroelectronics 

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ST7232A

16-BIT TIMER (Cont’d)

Figure 34. 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 35. 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 36. 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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