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MC8121 - abov.co.kr

MC8121 - abov.co.kr

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<strong>MC8121</strong>00000001 4.5ms 18ms00000010 9.0ms 36ms00001010 45ms 180ms00010100 90ms 360ms00101000 180ms 720ms01111000 360ms 1440ms11111111 1147.5ms 4608msThe WTIME is used to reduce average power <strong>co</strong>nsumption, because both ALS CH0 and CH1 ADCsstop integrating during wait time period.NOTE Although setting a larger wait time <strong>co</strong>ntributes to reduce average <strong>co</strong>nsumption current, it makes updateperiod and response time longer.AILTL (ALS CH0 Interrupt Low Threshold Low Register)05 H7 6 5 4 3 2 1 0AILTL7 AILTL6 AILTL5 AILTL4 AILTL3 AILTL2 AILTL1 AILTL0R/W R/W R/W R/W R/W R/W R/W R/WInitial value : FF HAILTL[7:0]ALS CH0 ADC channel interrupt low threshold low register.AILTH (ALS CH0 Interrupt Low Threshold High Register)06 H7 6 5 4 3 2 1 0AILTH7 AILTH6 AILTH5 AILTH4 AILTH3 AILTH2 AILTH1 AILTH0R/W R/W R/W R/W R/W R/W R/W R/WInitial value : 03 HAILTH[7:0]ALS CH0 ADC channel interrupt low threshold high register.AIHTL (ALS CH0 Interrupt High Threshold Low Register)07 H7 6 5 4 3 2 1 0AIHTL7 AIHTL6 AIHTL5 AIHTL4 AIHTL3 AIHTL2 AIHTL1 AIHTL0R/W R/W R/W R/W R/W R/W R/W R/WInitial value : FF HAIHTL[7:0]ALS CH0 ADC channel interrupt high threshold low register.AIHTH (ALS CH0 Interrupt High Threshold High Register)08 H7 6 5 4 3 2 1 0AIHTH7 AIHTH6 AIHTH5 AIHTH4 AIHTH3 AIHTH2 AIHTH1 AIHTH0R/W R/W R/W R/W R/W R/W R/W R/WInitial value : BF HAIHTH[7:0]ALS CH0 ADC channel interrupt high threshold high register.The interrupt threshold registers store the values to be used as the high and low trigger points for theadc data registers. If the value of adc data register crosses below or equal to the low thresholdspecified, an interrupt can be asserted on the interrupt pin. Likewise, if the result from ADC20 May 2013 REV1.61

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