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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CAP1114 датащи(PDF) 46 Page - Microchip Technology |
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CAP1114 датащи(HTML) 46 Page - Microchip Technology |
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46 / 102 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet Revision 1.1 (02-04-11) 46 SMSC CAP1114 DATASHEET APPLICATION NOTE: For the CAP1114-2, if the lid closure detection circuitry is enabled, these bits count as sensors above the lid closure count threshold even if the corresponding data count is not. If the corresponding data byte exceeds the lid closure threshold, it is not counted twice. APPLICATION NOTE: Regardless of the state of the Noise Status bits, if low frequency noise is detected on a sensor, that sample will be discarded unless the BLK_ANA_NOISE bit is set. As well, if RF noise is detected on a sensor, that sample will be discarded unless the BLK_RF_NOISE bit is set. 6.8 Lid Closure Status Registers The Lid Closure Status Registers bits are only set if the lid closure detection circuitry is enabled (see Section 6.24). 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 6.26). 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 6.25, "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. 6.9 GPIO Status Register The GPIO Status Register bits are set whenever one of the GPIO inputs changes states. If the LEDx / GPIOx pin is not configured as a GPIO or as an input, the respective bit will be set to a logic ‘0’. The bits are cleared when the register is read. Table 6.10 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 Table 6.11 GPIO Status Register ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 0Eh R-C GPIO Status GPIO8_ STS GPIO7_ STS GPIO6_ STS GPIO5_ STS GPIO4_ STS GPIO3_ STS GPIO2_ STS GPIO1_ STS 00h |
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