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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
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CAP1214 bảng dữ liệu(PDF) 78 Page - Microchip Technology |
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CAP1214 bảng dữ liệu(HTML) 78 Page - Microchip Technology |
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78 / 107 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet Revision 1.0 (08-30-10) 78 SMSC CAP1214 DATASHEET Bits 4-0 - FDBK_FREQ[4:0] - Controls the frequency of the FEEDBACK pin output. The LSB represents 125Hz. For example, a setting of 00100b (04d) represents a frequency of 500Hz (125Hz x 4 = 500Hz). The total range is from 125 Hz to 3875Hz. A setting of 00000b uses DC, which will set the output full high for the specified duration. 6.41 Feedback Channel Configuration Registers The Feedback Channel Configuration Registers control which sensors are linked to the FEEDBACK pin (see Section 5.7, "FEEDBACK Pin"). 6.41.1 Feedback Channel Configuration 1 For all bits in this register: ‘0’ (default) - The sensor input is not linked to the FEEDBACK pin. ‘1’ - The sensor is linked to the FEEDBACK pin and will assert the pin when a touch is detected. Bit 6 - CS7_FDBK - Links the CS7 input to the FEEDBACK pin. Bit 5 - CS6_FDBK - Links the CS6 input to the FEEDBACK pin. Bit 4 - CS5_FDBK - Links the CS5 input to the FEEDBACK pin. Table 6.60 FDBK_DUR Bit Decode FDBK_DUR[2:0] DURATION 21 0 0 0 0 0 (disabled) (default) 00 1 8ms 01 0 16ms 01 1 32ms 10 0 64ms 1 0 1 128ms 1 1 0 256ms 1 1 1 while button is pressed Table 6.61 Feedback Channel Configuration Registers ADDR R/W REGISTER B7 B6 B5 B4 B3 B2 B1 B0 DEFAULT 63h R/W Feedback Channel Configuration 1 - CS7_ FDBK CS6_ FDBK CS5_ FDBK CS4_ FDBK CS3_ FDBK CS2_ FDBK CS1_ FDBK 00h 64h R/W Feedback Channel Configuration 2 - CS14_ FDBK CS13_ FDBK CS12_ FDBK CS11_ FDBK CS10_ FDBK CS9_ FDBK CS8_ FDBK 00h |
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