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EM357-RTR 数据表(PDF) 145 Page - Silicon Laboratories |
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EM357-RTR 数据表(HTML) 145 Page - Silicon Laboratories |
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145 / 241 page ![]() 145 Rev 1.3 9.5. Registers Note: Substitute “1” or “2” for “x” in the following detailed descriptions. TIM1_CR1: Address: 0x4000E000 Reset: 0x0 TIM2_CR1: Address: 0x4000F000 Reset: 0x0 Register 9.1. TIMx_CR1 TIM1_CR1: Timer 1 Control Register 1 TIM2_CR1: Timer 2 Control Register 1 Bit 31 30 29 28 27 26 25 24 Name 0 0 0 0 0 0 0 0 Bit 23 22 21 20 19 18 17 16 Name 0 0 0 0 0 0 0 0 Bit 15 14 13 12 11 10 9 8 Name 0 0 0 0 0 0 0 0 Bit 7 6 5 4 3 2 1 0 Name TIM_ARBE TIM_CMS TIM_DIR TIM_OPM TIM_URS TIM_UDIS TIM_CEN Bitname Bitfield Access Description TIM_ARBE [7] RW Auto-Reload Buffer Enable. 0: TIMx_ARR register is not buffered. 1: TIMx_ARR register is buffered. TIM_CMS [6:5] RW Center-aligned Mode Selection. 00: Edge-aligned mode. The counter counts up or down depending on the direction bit (TIM_DIR). 01: Center-aligned mode 1. The counter counts up and down alternatively. Output compare interrupt flags of configured output channels (TIM_CCyS=00 in TIMx_C- CMRy register) are set only when the counter is counting down. 10: Center-aligned mode 2. The counter counts up and down alternatively. Output compare interrupt flags of configured output channels (TIM_CCyS=00 in TIMx_C- CMRy register) are set only when the counter is counting up. 11: Center-aligned mode 3. The counter counts up and down alternatively. Output compare interrupt flags of configured output channels (TIM_CCyS=00 in TIMx_C- CMRy register) are set both when the counter is counting up or down. Note: Software may not switch from edge-aligned mode to center-aligned mode when the counter is enabled (TIM_CEN = 1). TIM_DIR [4] RW Direction. 0: Counter used as up-counter. 1: Counter used as down-counter. TIM_OPM [3] RW One Pulse Mode. 0: Counter does not stop counting at the next UEV. 1: Counter stops counting at the next UEV (and clears the bit TIM_CEN). |
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