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AT42QT1111-MU Datasheet(PDF) 35 Page - ATMEL Corporation |
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AT42QT1111-MU Datasheet(HTML) 35 Page - ATMEL Corporation |
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35 / 50 page  35 9571A–AT42–02/10 AT42QT1111-MU/AT42QT1111-AU 7.14 Address 17: LED Fade/Key to LED FADE: enables/disables fading for all LEDs. This is a global setting; either all LEDs fade, or none of them. 0 = disable (no fade). 1 = enable fading on and off. LED_n: activates the LED output for the corresponding key output DETECTn (where n is 0–6). 1 = enables the “Detect” output to follow the status of the corresponding key. 0 = disable this function, in which case the “Detect” pin will always output its “Out of Detect” PWM (see Section 7.12 on page 33). Default FADE value: 0 (disabled) Default LED_n value: 1 (enabled) 7.15 Address 18: LED Latch LATCH_n: enables/disables latching of the LED for the corresponding key output DETECTn (where n is 0–6). 1 = enables latching. When latching is enabled for a given LED, the LED toggles its state each time the key is touched. 0 = disables latching. Note that bit 7 is reserved and should be set to zero. Default LATCH_n value: 0x00 (latch disabled) 7.16 Addresses 19–29: Negative Threshold (NTHR)/Negative Hysteresis (NHYST) Table 7-14. LED Fade/Key to LED Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 17 FADE LED_6 LED_5 LED_4 LED_3 LED_2 LED_1 LED_0 Table 7-15. LED Latch Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 18 0 LATCH_6 LATCH_5 LATCH_4 LATCH_3 LATCH_2 LATCH_1 LATCH_0 Table 7-16. Negative Threshold/Negative Hysteresis Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 19 KEY_0_NTHR KEY_0_NHSYT 20 KEY_1_NTHR KEY_1_NHSYT 21 KEY_2_NTHR KEY_2_NHSYT 22 KEY_3_NTHR KEY_3_NHSYT 23 KEY_4_NTHR KEY_4_NHSYT 24 KEY_5_NTHR KEY_5_NHSYT |
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