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S1C6S2N7 TECHNICAL SOFTWARE EPSON II-57
CHAPTER 3: PERIPHERAL CIRCUITS (Interrupt and Halt)
This flag is set to "1" after a motor drive sequence is
finished.
The contents of the ISMD flag can be loaded by software to
determine whether a motor drive interrupt has occured.
The flag is reset, when it is loaded by software. (See Figure
3.10.4.)
ISMD
Motor driver interrupt
mask register (EISMD)
Motor driver interrupt
factor flag (ISMD)
INT
(Interrupt request)
Interrupt flag (I)
Data bus
Data bus
Motor driver
D0
D0
Fig. 3.10.4
Motor driver interrupt circuit
Reading of interrupt factor flags is available at EI, but be careful in
the following cases.
If the interrupt mask register value corresponding to the interrupt
factor flags to be read is set to "1", an interrupt request will be
generated by the interrupt factor flags set timing, or an interrupt
request will not be generated. Be very careful when interrupt factor
flags are in the same address.
Note
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