Figure 99. Capture/Compare Channel 1 Main Circuit; Figure 100. Output Stage Of Capture/Compare Channel (Channel 1) - ST STM32F101 Series Reference Manual

Advanced arm-based 32-bit mcus

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Figure 99. Capture/compare channel 1 main circuit

CNT = CCR1 Controller

The capture/compare block is made of one preload register and one shadow register. Write

and read always access the preload register.

In capture mode, captures are actually done in the shadow register, which is copied into the

preload register.

In compare mode, the content of the preload register is copied into the shadow register

which is compared to the counter.

read_in_progress

Capture/Compare Preload Register

capture_transfer

Capture/Compare Shadow Register

MCU-peripheral interface

compare_transfer

To the master mode

General purpose timer (TIMx)

write_in_progress

CC1E TIMx_CCER

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