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(3803H,3803L,3850A) Should FFD4 to FFDAh data be deleted in the Mask ROM version ?

Latest Updated:01/06/2006

Question:

(ROM)  Regarding switching from Flash Memory version to Mask ROM version or QzROM version: Since the ID code check function is used in the Flash Memory version, ID and other data are written into the ID code storage addresses and ROM code protect (addresses FFD4 to FFDBh). Should these data be deleted in the Mask ROM version or QzROM version ? [2006/01/06]

Answer:

In Mask ROM version, it is not necessary to delete the data. In QzROM version, it is not neceassy to delete any addresses up to FFDAh. Set FFh to address FFDBh. (#105522)
Suitable Products
3803H
3803L
3850A