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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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CAP1114 데이터시트(PDF) 89 Page - Microchip Technology |
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CAP1114 데이터시트(HTML) 89 Page - Microchip Technology |
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89 / 102 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet SMSC CAP1114 89 Revision 1.1 (02-04-11) DATASHEET 6.51 LED Breathe Period Register The LED Breathe Period Register determines the overall period of a breathe operation as determined by the LED_CTL registers (see Table 6.69 - setting 11b). Each LSB represents 32ms so that a setting of 14h (20d) would represent a period of 640ms. The total range is from 32ms to 4.06 seconds (see Table 6.71). 6.52 LED Configuration Register The LED Configuration Register controls the number of pulses that are sent for the Pulse 1 and Pulse 2 LED output behaviors. Bit 6 - RAMP_ALERT - Determines whether the device will assert the ALERT pin when LEDs actuated by the LED Output Control register bits have finished their respective behaviors. ‘0’ (default) - The ALERT pin will not be asserted when LEDs actuated by the LED Output Control register have finished their programmed behaviors. ‘1’ - The ALERT pin will be asserted whenever any LED that is actuated by the LED Output Control register has finished its programmed behavior. If the DSLEEP bit is set, this bit is cleared. Figure 6.4 Pulse 2 Behavior with Inverted Polarity Table 6.73 LED Breathe Period Register ADDR R/W REGISTER B7 B6B5B4B3B2 B1 B0 DEFAULT 86h R/W LED Breathe Period - BR_ PER6 BR_ PER5 BR_ PER4 BR_ PER3 BR_ PER2 BR_ PER1 BR_ PER0 5Dh Table 6.74 LED Configuration Registers ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 88h R/W LED Config - RAMP_ ALERT PULSE2_CNT[2:0] PULSE1_CNT[2:0] 24h Normal – untouched operation Normal – untouched operation Touch Detected Pulse 2 Max Duty Cycle * Brightness Pulse 2 Min Duty Cycle * Brightness X - 1 additional pulses after release Release Detected Pulse Period (P2_PER) LED Brightness . . . |
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