Timx Counter (Timx_Cnt) - ST STM32F413 Reference Manual

RM0430
18.4.10

TIMx counter (TIMx_CNT)

Address offset: 0x24
Reset value: 0x0000
15 14 13
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Bits 15:0 CNT[15:0]: Counter value
18.4.11 TIMx prescaler (TIMx_PSC)
Address offset: 0x28
Reset value: 0x0000
15 14 13
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Bits 15:0 PSC[15:0]: Prescaler value
18.4.12 TIMx auto-reload register (TIMx_ARR)
Address offset: 0x2C
Reset value: 0x0000
15 14 13
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Bits 15:0
12 11 10 9
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12 11 10 9
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The counter clock frequency CK_CNT is equal to f
PSC contains the value to be loaded in the active prescaler register at each update event.
12 11 10 9
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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 on page 525
and behavior.
The counter is blocked while the auto-reload value is null.
General-purpose timers (TIM2 to TIM5)
8 7 6
CNT[15:0]
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8 7 6
PSC[15:0]
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8 7 6
ARR[15:0]
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DocID029473 Rev 3
5 4 3 2
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5 4 3 2
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/ (PSC[15:0] + 1).
CK_PSC
5 4 3 2
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for more details about ARR update
1 0
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1 0
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1 0
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