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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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CAP1214 датащи(PDF) 69 Page - Microchip Technology |
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CAP1214 датащи(HTML) 69 Page - Microchip Technology |
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69 / 107 page  Multiple Channel Capacitive Touch Sensor and LED Driver Datasheet SMSC CAP1214 69 Revision 1.0 (08-30-10) DATASHEET Bits 3-2 - SLIDE_TIME[1:0] - (default 01b) - Determines how fast a slide must be to generate extra interrupts. This is the maximum slide time that will result in extra interrupts being generated. If the slide time is greater than SLIDE_TIME, no extra interrupts will be generated. Bits 1 - 0 - RPT_SCALE[1:0] - (default 01b) - Determines how much to increase the Repeat Rate based on slide speed. The slide speed is determined by counting how many sensors are touched in approximately 100msec. The Repeat Rate is then increased various amounts based on the RPT_SCALE parameter. When read in Table 6.48, the repeat rate given is the number of measurement cycles between interrupts generated. Table 6.46 MAX_INT Bit Decode MAX_INT[2:0] MAX # INTERRUPTS # INTERRUPTS FOR T < 1/2 SLIDE_TIME # INTERRUPTS FOR 1/2 < T < 3/4 SLIDE_TIME # INTERRUPTS FOR 3/4 < T < FULL SLIDE_TIME 21 0 00 0 0 0 0 0 00 1 1 1 0 0 01 0 2 2 1 0 01 1 3 3 1 0 10 0 4 4 2 1 10 1 5 5 2 1 11 0 6 6 3 1 11 1 7 7 3 1 Table 6.47 SLIDE_TIME Bit Decode SLIDE_TIME[1:0] APPROXIMATE SLIDE TIME (MSEC) 10 0 0 350 0 1 560 (default) 1 0 770 1 1 980 Table 6.48 RPT_SCALE Bit Decode NUMBER OF SENSORS IN 100MSEC REPEAT RATE (MSEC) RPT_SCALE[1:0] 00 01 10 11 >=5 35 35 35 35 435 35 35 70 |
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