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ST72561J4-Auto датащи(PDF) 129 Page - STMicroelectronics

номер детали ST72561J4-Auto
подробное описание детали  Clock, reset and supply management
PDF  324 Pages
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производитель  STMICROELECTRONICS [STMicroelectronics]
домашняя страница  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST72561J4-Auto датащи(HTML) 129 Page - STMicroelectronics

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ST72561-Auto
8-bit timer (TIM8)
Doc ID 12370 Rev 8
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1.
Reading the SR register while the TOF bit is set.
2.
An access (read or write) to the CTR register.
Note:
The TOF bit is not cleared by accesses to ACTR register. The advantage of accessing the
ACTR register rather than the CTR register is that it allows simultaneous use of the overflow
function and reading the free running counter at random times (for example, to measure
elapsed time) without the risk of clearing the TOF bit erroneously.
The timer is not affected by WAIT mode.
In HALT mode, the counter stops counting until the mode is exited. Counting then resumes
from the previous count (MCU awakened by an interrupt) or from the reset count (MCU
awakened by a Reset).
Figure 60.
Counter timing diagram, internal clock divided by 2
Figure 61.
Counter timing diagram, internal clock divided by 4
Figure 62.
Counter timing diagram, internal clock divided by 8
Note:
The MCU is in reset state when the internal reset signal is high, when it is low the MCU is
running.
fCPU CLOCK
FD
FE
FF
00
01
02
03
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER
TIMER OVERFLOW FLAG (TOF)
FC
FD
00
01
fCPU CLOCK
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER
TIMER OVERFLOW FLAG (TOF)
fCPU CLOCK
INTERNAL RESET
TIMER CLOCK
COUNTER REGISTER
TIMER OVERFLOW FLAG (TOF)
FC
FD
00



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