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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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ATTINY817-MFR. 데이터시트(PDF) 68 Page - Microchip Technology |
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ATTINY817-MFR. 데이터시트(HTML) 68 Page - Microchip Technology |
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68 / 492 page  Bit 7 6 5 4 3 2 1 0 CAL20M[5:0] Access R/W R/W R/W R/W R/W R/W Reset x x x x x x Bits 5:0 – CAL20M[5:0]: Calibration These bits change the frequency around the current center frequency of the OSC20M for fine tuning. At Reset factory calibrated values are loaded based on FREQSEL bits in FUSE.OSCCFG. 10.5.7 16/20MHz Oscillator Calibration B Name: OSC20MCALIBB Offset: 0x12 Reset: Based on FUSE.OSCCFG Property: Configuration Change Protection Bit 7 6 5 4 3 2 1 0 LOCK TEMPCAL20M[3:0] Access R R/W R/W R/W R/W Reset x x x x x Bit 7 – LOCK: Oscillator Calibration Locked by Fuse When this bit is set, the calibration settings in CLKCTRL.OSC20MCALIBA and CLKCTRL.OSC20MCALIBB cannot be changed. The Reset value is loaded from the OSCLOCK bit in the Oscillator Configuration fuse (FUSE.OSCCFG). Bits 3:0 – TEMPCAL20M[3:0]: Oscillator Temperature Coefficient Calibration These bits tune the slope of the temperature compensation. At Reset factory calibrated values are loaded based on FREQSEL bits in FUSE.OSCCFG. 10.5.8 32KHz Oscillator Control A Name: OSC32KCTRLA Offset: 0x18 Reset: 0x00 Property: Configuration Change Protection Bit 7 6 5 4 3 2 1 0 RUNSTDBY Access R R R R R R R/W R Reset 0 0 0 0 0 0 0 0 Bit 1 – RUNSTDBY: Run Standby This bit force the oscillator on in all modes, even when unused by the system. In standby sleep mode this can be used to ensure immediate wake-up and not waiting for oscillator start-up time. When not requested by peripherals, no oscillator output is provided. ATtiny417/817 © 2017 Microchip Technology Inc. Datasheet Complete DS40001901B-page 68 |
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