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AT42QT1110-AU Datasheet(PDF) 29 Page - ATMEL Corporation |
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AT42QT1110-AU Datasheet(HTML) 29 Page - ATMEL Corporation |
29 / 50 page ![]() 29 AT42QT1110-MU / AT42QT1110-AU [DATASHEET] 9520J–AT42–05/2013 7.2 Setting Individual Settings To set up an individual setup value, the host sends the command listed under the “Set Command” column in Table 7- 1, followed by a byte of data. For details of the communication flow, see Section 4.1 on page 10. 7.3 Setting All the Setups The host can send all 42 bytes of setup data to the QT1110 as a block using the Send Setups command. See Section 5.2 on page 22 for details. 7.4 Address 0: Device Mode The Device Mode controls the overall operation of the device: number of keys, acquisition method, timing and trigger mechanism. KEY_AC: selects the trigger source to start key acquisition; 0 = SYNC pin, 1 = timed. MODE: selects 7-key or 11-key mode; 0 = default 7-key mode, 1 = 11-key mode. SIGNAL: selects serial or parallel acquisition of keys signals; 0 = serial, 1 = parallel. 29 Key10 Negative Threshold (NTHR)/Negative Hysteresis (NHYST) 0xAD 0xED 30 Extend Pulse Time 0xAE 0xEE 31 Key0 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB0 0xF0 32 Key1 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB1 0xF1 33 Key2 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB2 0xF2 34 Key3 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB3 0xF3 35 Key4 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB4 0xF4 36 Key5 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB5 0xF5 37 Key6 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB6 0xF6 38 Key7 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB7 0xF7 39 Key8 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB8 0xF8 40 Key9 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xB9 0xF9 41 Key10 Negative Drift Compensation (NDRIFT)/Negative Recalibration Delay (NRD) 0xBA 0xFA Table 7-1. Memory Map (Continued) Address Function Set Command Get Command Table 7-2. Device Mode Address Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 0 KEY_AC MODE SIGNAL SYNC REPEAT_TIME |
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