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Renesas Technology, Tools FAQs
Last Updated: November 6, 2000
Document Number: 01050802_e
Q.
Is the port output state of the M34502T-MCU maintained in the RAM backup mode?
A.
The port output state is maintained in the RAM backup mode of the actual MCU, but not in M34502T-MCU. When using
M34502T-MCU, "H" level is output to ports D, P0, and P1 during the backup mode. After returning from the RAM back-up mode,
the pre-backup mode state is output to the ports. In other words, "L" level will be output to ports D, P0, and P1. Therefore, we
recommend that you evaluate your system using the evaluation MCU (OTP version).
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