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2.CPU Peripheral Circuits
1)CPU and ROM/RAM
The CPU M50734SP has a external memory type. Lower
Fig. 2-1 CPU and ROM/RAM Circuit
2)Initial Resetting and Power Failure Interrupt Circuit
The IC12 is an IC for generating the power failure interrupt signal and reset signal. When the power supply voltage decreased due to power failure, etc. this IC performs the voltage inspection and stores all data in the CPU buffer into RAM while printing.
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