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The information presented in this cross reference is based on TOSHIBA's selection criteria and should be treated as a suggestion only. Please carefully review the latest versions of all relevant information on the TOSHIBA products, including without limitation data sheets and validate all operating parameters of the TOSHIBA products to ensure that the suggested TOSHIBA products are truly compatible with your design and application.
Please note that this cross reference is based on TOSHIBA's estimate of compatibility with other manufacturers' products, based on other manufacturers' published data, at the time the data was collected.
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Although operation checks with test tools in the development environment were successful, proper operation cannot be achieved with the actual device.


The possible causes and corresponding workarounds are as follows:

Possible Causes
1)   The oscillation setting is not done properly in the microcontroller (no oscillator, inappropriate oscillation frequency, etc.).
2)   The supply voltage to the microcontroller is not appropriate.
3)   The operating mode of the microcontroller is not set up properly (TEST pin, AM pin, etc.).
4)   The microcontroller is not programmed properly.

1), 2)   Use the correct oscillation setup and supply voltage as specified in the electrical characteristics section in the datasheet of each product.
3)   Check the relevant settings on the printed circuit board.
4)   Conduct verification tests on the programs written in the microcontroller.

(NO.ED9900901 2011/10/25)

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