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UPD168113 Datasheet(PDF) 39 Page - NEC |
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UPD168113 Datasheet(HTML) 39 Page - NEC |
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39 / 50 page  Data Sheet S16423EJ2V0DS 39 µ PD168113 11.8 Address A This address is used to set the pulse cycle per step (64 steps/cycle) . MSB LSB Bit Df De Dd Dc Db Da D9 D8 D7 D6 D5 D4 D3 D2 D1 D0 Data 1 0 1 0 Pulse cycle 11.8.1 Pulse cycle Twelve bits, D0 to Db, are used to set the pulse cycle per step. The pulse cycle can be set in a range of 0 to 8190 µs at a resolution of 2.0 µs. If all of the twelve-bit is 0, no pulse is output and the driving status is maintained. The pulse period indicates the time per step regardless of the driving mode (micro step, 1-2 phase excitation, or 2- phase excitation). Therefore, the number of revolutions of the motor differs depending on the driving mode, even if the number of pulses is the same. 11.8.2 Example of pulse cycle setting Db......D0 Set Value ( µs) 000000000000 0 000000000001 2.0 000000000010 4.0 : : 111111111101 8186 111111111110 8188 111111111111 8190 |
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