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CAP1114 датащи(PDF) 92 Page - Microchip Technology |
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CAP1114 датащи(HTML) 92 Page - Microchip Technology |
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92 / 102 page ![]() Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet Revision 1.1 (02-04-11) 92 SMSC CAP1114 DATASHEET APPLICATION NOTE: If a non-zero fall time is desired, the rise rate must be set to be equal to the desired fall rate. This should be done as a register write after the LED has been actuated and before it is unactuated. Bits 2 - 0 - FALL_RATE[2:0] - Determines the falling edge time of an LED when it transitions from its maximum drive state to its minimum drive state as shown in Table 6.79. 6.55 LED Off Delay Register The LED Off Delay Register determines the amount of time an LED in Direct behavior mode remains active after it is no longer actuated (such as after a release has been detected or the drive state has been changed). Bits 2 - 0 - DIR_OFF_DLY[2:0] - Determines the turn-off delay, as shown in Table 6.81, for all LEDs that are configured to operate in Direct behavior mode. Table 6.79 Rise / Fall Rate Cycle Decode RISE/FALL_RATE [2:0] RISE / FALL TIME (TRISE / TFALL) 21 0 00 0 0 0 0 1 250ms 0 1 0 500ms 0 1 1 750ms 10 0 1s 10 1 1.25s 11 0 1.5s 11 1 2s Table 6.80 LED Off Delay Register ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 95h R/W LED Off Delay Register - - - - - DIR_OFF_DLY [2:0] 00h Table 6.81 Off Delay Settings DIR_OFF_DLY [2:0 OFF DELAY TOFF_DLY 21 0 00 0 0 00 1 0.5s 01 0 1.0s 01 1 1.5s |
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