RM0090 Rev 18 643/1749
RM0090 General-purpose timers (TIM2 to TIM5)
649
18.4.13 TIMx capture/compare register 1 (TIMx_CCR1)
Address offset: 0x34
Reset value: 0x0000 0000
18.4.14 TIMx capture/compare register 2 (TIMx_CCR2)
Address offset: 0x38
Reset value: 0x0000 0000
Bits 31:16 ARR[31:16]: High auto-reload value (on TIM2 and TIM5).
Bits 15:0 ARR[15:0]: Auto-reload value
ARR is the value to be loaded in the actual auto-reload register.
Refer to the Section 18.3.1: Time-base unit for more details about ARR update and
behavior.
The counter is blocked while the auto-reload value is null.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
CCR1[31:16] (depending on timers)
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1514131211109876543210
CCR1[15:0]
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Bits 31:16 CCR1[31:16]: High Capture/Compare 1 value (on TIM2 and TIM5).
Bits 15:0 CCR1[15:0]: Low Capture/Compare 1 value
If channel CC1 is configured as output:
CCR1 is the value to be loaded in the actual capture/compare 1 register (preload value).
It is loaded permanently if the preload feature is not selected in the TIMx_CCMR1 register
(bit OC1PE). Else the preload value is copied in the active capture/compare 1 register when
an update event occurs.
The active capture/compare register contains the value to be compared to the counter
TIMx_CNT and signaled on OC1 output.
If channel CC1is configured as input:
CCR1 is the counter value transferred by the last input capture 1 event (IC1). The
TIMx_CCR1 register is read-only and cannot be programmed.
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
CCR2[31:16] (depending on timers)
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1514131211109876543210
CCR2[15:0]
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