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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CAP1014 датащи(PDF) 39 Page - SMSC Corporation |
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CAP1014 датащи(HTML) 39 Page - SMSC Corporation |
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39 / 84 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet SMSC CAP1014 39 Revision 1.65 (08-11-09) DATASHEET 5.7 Noise Flag Status Registers The Noise Flag Status registers store status bits that are generated from the analog block if the detected noise is above the operating region of the analog detector. These bits indicate that the most recently received data from the sensor is invalid and should not be used for touch detection. Furthermore, so long as the bit is set for a particular channel, no decisions are made with the data. The queues are not updated, a touch is not detected, and a release is not detected. These bits are not sticky and will be cleared automatically if the analog block does not report a noise error. 5.8 Lid Closure Status Registers The Lid Closure Status registers bits are only set if the lid closure detection circuitry is enabled (see Section 5.24, "Lid Closure Configuration Register"). These status bits indicate that the corresponding Capacitive Touch Sensor exceeded the Lid Closure threshold. These bits will be set if a button press is detected, because the Lid Closure threshold is a percentage of the Sensor Threshold. These bits are used in combination with the Lid Closure Pattern register settings to determine when a Lid Closure Event is flagged (see Section 5.26, "Lid Closure Pattern Registers"). These bits are not sticky and will be cleared automatically when the corresponding sensor count drops below the lid closure count threshold. The device does not flag a sensor as above or below the threshold until it has cycled through the queue (see Section 5.25, "Lid Closure Queue Control Register"). APPLICATION NOTE: It is likely that recalibration will occur while the lid is closed, resulting in negative delta counts until recalibration takes place. Table 5.10 Noise Flag Status Registers ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 0Ah R Noise Flag Status 1 - S7_ NOISE S6_ NOISE S5_ NOISE S4_ NOISE S3_ NOISE S2_ NOISE S1_ NOISE 00h 0Bh R Noise Flag Status 2 - S14_ NOISE S13_ NOISE S12_ NOISE S11_ NOISE S10_ NOISE S9_ NOISE S8_ NOISE 00h Table 5.11 Lid Closure Status Registers ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 0Ch R Lid Closure Status 1 - S7_ LID S6_ LID S5_ LID S4_ LID S3_ LID S2_ LID S1_ LID 00h 0Dh R Lid Closure Status 2 - S14_ LID S13_ LID S12_ LID S11_ LID S10_ LID S9_ LID S8_ LID 00h |
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