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AT42QT2100 Datasheet(PDF) 23 Page - ATMEL Corporation |
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AT42QT2100 Datasheet(HTML) 23 Page - ATMEL Corporation |
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23 / 44 page  23 AT42QT2100 [DATASHEET] 9554E–AT42–01/13 Figure 5-1. Slider and Wheel Resolution 5.2.3 QT2100 Data The three return bytes contain the response to the previously sent command. Initially it is assumed that the previously sent command was a Normal Exchange command. The return bytes for the Normal Exchange command is shown in Table 5-7. Byte 0 CTL: Custom Threshold Loaded: If CTL = 1, a custom slider/wheel threshold has been loaded from the host. This is set as a result of a Custom Threshold command. Once the QT2100 has received a custom threshold, this bit is set and stays set until reset. PM: Proximity Mode: This setting is disabled as there is no proximity mode on the QT2100 because each key can be configured as a proximity sensor. This setting has been left to ensure compatibility with the QT1106. LPS: LP/Sleep State: If LPS = 1, the device was in LP, Sync, or Sleep mode when the requesting command was received. If LPS = 0, the device was in Free Run mode. 0 3 12 2 bits 0 3 12 4 5 6 7 3 bits 0 3 12 4 5 6 789 10 11 12 13 14 15 4 bits Note: the first and last slider positions (shaded) have larger touch areas. SliderM ode SNSKA SNSA3 SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 SNSKA SNSA3 SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 SNSKA SNSA3 SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 0 1 2 3 2 bits 0 1 2 3 4 5 6 7 3 bits 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 4 bits W heelM ode SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 SNSKA SNSA1 SNSKA SNSA2 SNSKA SNSA3 Table 5-7. Normal Exchange Mode – Return Bytes QT2100 Byte Bit 7 6 5 4 3 2 1 0 0 CW CK EW EK LPS PM 0 CTL 1 W K7 K6 K5 K4 K3 K2 K1 2 Position |
Similar Part No. - AT42QT2100_14 |
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Similar Description - AT42QT2100_14 |
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