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ML9092-03 Datasheet(PDF) 49 Page - OKI electronic componets |
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ML9092-03 Datasheet(HTML) 49 Page - OKI electronic componets |
49 / 66 page FEDL9092-01 OKI Semiconductor ML9092-01/02/03/04 49/66 • Rotary encoder (RE) read D7 D6 D5 D4 D3 D2 D1 D0 Q4 Q4 Q4 Q4 Q4 Q3 Q2 Q1 The rotary encoder read instruction is used to read the count value from the rotary encoder switch input signal. (Count values are in the 2’s complement format.) (1) D7 to D0 (Q4 to Q1) (Count value bit) The phase difference between the A signal and the B signal is recognized, and the value that is counted by the edge of the signal with the slower phase is set. Count values range from negative 1000 (Q4, Q3, Q2, Q1) to positive 0111. If the count is less than negative 1000 or more than positive 0111, then it is ignored. These bits are all reset to “0” when this instruction is executed or when the RESET pin is pulled to a “L” level. If counterclockwise rotation is input after the count value is incremented by clockwise rotation, then count value will be decremented. If counterclockwise rotation is further input after the count value reaches 0000, then the count value will change to 1111 and the count value will be decremented. (The count value will remain 1000 even if counterclockwise rotation is further input after the count value reaches negative 1000.) After this, if clockwise rotation is input, then the count value will be incremented. If the count value reaches 1111 and clockwise rotation is further input, then the count value will become 0000 and the count value will be incremented. (Even if clockwise rotation is further input after the count value reaches positive 0111, the count value will maintain 0111.) |
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