Renesas Technology, Tools FAQs
Last Updated: April 5, 2000
Document Number: 01050973_e
Q.
How is the reliability of the mask data secured for a floppy disk-based mask ROM order?
When I choose the EPROM-based mask order, I have to prepare 3 sets of EPROMs. But, when I choose the floppy disk-based mask
order, I just need to prepare one data file.
A.
Mitsubishi Mask Data Reception Department can confirm the floppy disk data reliability for the mask ordering procedure with a
single data file based on the following reasons:
The mask file can be identified by matching the file name of the mask file in the floppy disk with the name specified on the
Mask ROM confirmation form.
●
The mask file includes not only the MCU binary data but also the mask generation configuration data, which allows us to
confirm the configuration with the Mask ROM confirmation form.
●
In the EPROM-based mask order, the data we get from the EPROM is user binary data and its check-sum. It is possible to generate
the same check-sum code from two or more different binary data. Therefore, multiple EPROMed binary data must be prepared to
examine whether those binary files contain the same data.
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