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CAP1128 Datasheet(PDF) 41 Page - Microchip Technology |
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CAP1128 Datasheet(HTML) 41 Page - Microchip Technology |
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41 / 75 page  2015 Microchip Technology Inc. DS00001622B-page 41 CAP1128 6.11 Calibration Activate Register The Calibration Activate register forces the respective sensor inputs to be re-calibrated affecting both the analog and digital blocks. During the re-calibration routine, the sensor inputs will not detect a press for up to 600ms and the Sensor Input Base Count register values will be invalid. During this time, any press on the corresponding sensor pads will inval- idate the re-calibration. When finished, the CALX[9:0] bits will be updated (see Section 6.39). When the corresponding bit is set, the device will perform the calibration and the bit will be automatically cleared once the re-calibration routine has finished. Bit 7 - CS8_CAL - When set, the CS8 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 6 - CS7_CAL - When set, the CS7 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 5 - CS6_CAL - When set, the CS6 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 4 - CS5_CAL - When set, the CS5 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 3 - CS4_CAL - When set, the CS4 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 2 - CS3_CAL - When set, the CS3 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 1 - CS2_CAL - When set, the CS2 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. Bit 0 - CS1_CAL - When set, the CS1 input is re-calibrated. This bit is automatically cleared once the sensor input has been re-calibrated successfully. 6.12 Interrupt Enable Register The Interrupt Enable register determines whether a sensor pad touch or release (if enabled) causes the interrupt pin to be asserted. Bit 7 - CS8_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS8 (associated with the CS8 status bit). • ‘0’ - The interrupt pin will not be asserted if a touch is detected on CS8 (associated with the CS8 status bit). • ‘1’ (default) - The interrupt pin will be asserted if a touch is detected on CS8 (associated with the CS8 status bit). Bit 6 - CS7_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS7 (associated with the CS7 status bit). Bit 5 - CS6_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS6 (associated with the CS6 status bit). Bit 4 - CS5_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS5 (associated with the CS5 status bit). Bit 3 - CS4_INT_EN - Enables the interrupt pin to be asserted if a touch is detected on CS4 (associated with the CS4 status bit). TABLE 6-21: CALIBRATION ACTIVATE REGISTER ADDR R/W Register B7 B6 B5B4 B3B2B1 B0 Default 26h R/W Calibration Activate CS8_ CAL CS7_ CAL CS6_ CAL CS5_ CAL CS4_ CAL CS3_ CAL CS2_ CAL CS1_ CAL 00h TABLE 6-22: INTERRUPT ENABLE REGISTER ADDR R/W Register B7 B6 B5 B4 B3 B2 B1 B0 Default 27h R/W Interrupt Enable CS8_ INT_EN CS7_ INT_EN CS6_ INT_EN CS5_ INT_EN CS4_ INT_EN CS3_ INT_EN CS2_ INT_EN CS1_ INT_EN FFh |
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