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ST7LUS5 bảng dữ liệu(PDF) 54 Page - STMicroelectronics |
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ST7LUS5 bảng dữ liệu(HTML) 54 Page - STMicroelectronics |
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54 / 124 page  Power saving modes ST7LUS5, ST7LU05, ST7LU09 54/124 8.5.1 Register description AWUFH control/status register (AWUCSR) AWUCSR Reset value: 0000 0000 (00h) 7 654 32 10 Reserved AWUF AWUM AWUEN - R/W R/W R/W Table 22. AWUCSR register description Bit Name Function 7:3 - Reserved 2AWUF Auto Wake-up Flag This bit is set by hardware when the AWU module generates an interrupt and cleared by software on reading AWUCSR. Writing to this bit does not change its value. 0: No AWU interrupt occurred 1: AWU interrupt occurred 1AWUM Auto Wake-up Measurement This bit enables the AWU RC oscillator and connects its output to the input capture of the 8-bit Lite timer. This allows the timer to be used to measure the AWU RC oscillator dispersion and then compensate this dispersion by providing the right value in the AWUPRE register. 0: Measurement disabled 1: Measurement enabled 0AWUEN Auto Wake-up from Halt Enabled This bit enables the Auto Wake-up from Halt feature: Once Halt mode is entered, the AWUFH wakes up the microcontroller after a time delay dependent on the AWU prescaler value. It is set and cleared by software. 0: AWUFH (Auto Wake-up from Halt) mode disabled 1: AWUFH (Auto Wake-up from Halt) mode enabled Note: Whatever the clock source, this bit should be set to enable the AWUFH mode once the HALT instruction has been executed. |
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