Motor control apparatus and motor control method

Details Motor control apparatus and motor control method Motor control apparatus and motor control method

2005-01-25

2005-01-25

Martin, David (Department: 2837)

Electricity: motive power systems

Positional servo systems

Program- or pattern-controlled systems

C318S685000, C318S696000, C358S001160, C710S022000

Reexamination Certificate

active

06847180

ABSTRACT:
Control data is efficiently serially transferred to a drive device for driving a motor without involving the CPU. Data buffers are allocated at specific memory addresses. An address decoder decodes a memory address output to the address bus and applies a write enable signal to the corresponding data buffer to write data to that data buffer by DMA transfer. When data is written to a data buffer, a sequencer circuit compiles control data, based on data in that data buffers, in a shift register, and serially transfers the control data one bit at a time on a serial transfer line synchronized to a clock.

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