RM0008
13.4.10
TIM1&TIM8 counter (TIMx_CNT)
Address offset: 0x24
Reset value: 0x0000
Advanced-control timers (TIM1&TIM8)
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CNT[15:0]
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rw
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Bits 15:0
CNT[15:0] : Counter value
13.4.11
TIM1&TIM8 prescaler (TIMx_PSC)
Address offset: 0x28
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PSC[15:0]
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Bits 15:0 PSC[15:0] : Prescaler value
The counter clock frequency (CK_CNT) is equal to f CK_PSC / (PSC[15:0] + 1).
PSC contains the value to be loaded in the active prescaler register at each update event
(including when the counter is cleared through UG bit of TIMx_EGR register or through trigger
controller when configured in “reset mode”).
13.4.12
TIM1&TIM8 auto-reload register (TIMx_ARR)
Address offset: 0x2C
Reset value: 0x0000
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ARR[15:0]
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Bits 15:0 ARR[15:0] : Prescaler value
ARR is the value to be loaded in the actual auto-reload register.
Refer to the Section 13.3.1: Time-base unit on page 256 for more details about ARR update
and behavior.
The counter is blocked while the auto-reload value is null.
Doc ID 13902 Rev 9
311/995
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