Renesas Technology, Tools FAQs
Last Updated: July 5, 2000
Document Number: 01050807_e
Q.
Is it possible to use the M34551T-MCU for the 4555 Group software debugging? Or do I have to purchase the M34551T2-MCU
chip?
A.
Yes, you can do the debugging as you described, but it is very limited. When you apply the M34551T-MCU pod to 4555 Group
software debugging, you cannot use the key-on wake-up function of the 4555 D5/INT pin.
Also, there is no OTP version available for the 4555 Group MCU; therefore, you have no way to evaluate or debug this key-on
wake-up function. We recommend upgrading to the M34551T2-MCU pod for 4555 Group developments. The pod is equipped with
the eva-chip covering all group MCUs and can be used as an evaluation board. (Please note that the evaluation board cannot provide
all features. Use the M34551E8BFP chip to fill in the areas of limitations on the board.)
In summary, if you do not use the D5/INT key-on wake-up function, there is no problem with using the M34551T-MCU for 4555
Group developments. There is also no problem with using the M34551E8FP OTP chip.
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