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ST72561J4-Auto датащи(PDF) 113 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
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ST72561J4-Auto датащи(HTML) 113 Page - STMicroelectronics

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ST72561-Auto
16-bit timer
Doc ID 12370 Rev 8
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Figure 55.
Output compare timing diagram, fTIMER =fCPU/2
Figure 56.
Output compare timing diagram, fTIMER =fCPU/4
12.3.8
One pulse mode
One Pulse mode enables the generation of a pulse when an external event occurs. This
mode is selected via the OPM bit in the CR2 register.
The One Pulse mode uses the Input Capture1 function and the Output Compare1 function.
Procedure
To use One Pulse mode:
1.
Load the OC1R register with the value corresponding to the length of the pulse (see the
formula in the opposite column).
2.
Select the following in the CR1 register:
–
Using the OLVL1 bit, select the level to be applied to the OCMP1 pin after the
pulse.
–
Using the OLVL2 bit, select the level to be applied to the OCMP1 pin during the
pulse.
–
Select the edge of the active transition on the ICAP1 pin with the IEDG1 bit (the
ICAP1 pin must be configured as floating input).
INTERNAL CPU CLOCK
TIMER CLOCK
COUNTER REGISTER
OUTPUT COMPARE REGISTER i (OCRi)
OUTPUT COMPARE FLAG i (OCFi)
OCMPi PIN (OLVLi =1)
2ED3
2ED0
2ED1 2ED2
2ED3 2ED4
2ECF
INTERNAL CPU CLOCK
TIMER CLOCK
COUNTER REGISTER
OUTPUT COMPARE REGISTER i (OCRi)
COMPARE REGISTER i LATCH
2ED3
2ED0
2ED1 2ED2
2ED3 2ED4
2ECF
OCMPi PIN (OLVLi =1)
OUTPUT COMPARE FLAG i (OCFi)



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