chips ? cannot ? be ? re ‐ used. ? ?
The ? Protect ? function ? protects ? the ? data ? in ? FLASH ? chips. ? You ? cannot ? rewrite ?
a ? protected ? chip ? until ? you ? have ? removed ? the ? protection. ? Use ? the ? Erase ?
operation ? to ? remove ? the ? protection. ? You ? must ? use ? this ? operation ? with ? Dev. ?
Config ? and ? identify ? the ? sector. ? Refer ? to ? Identifying ? the ? Sector ? on ? page ? 60 ? for ?
more ? information. ?
?
?
?
?
Security ? encrypts ? data ? to ? make ? it ? unreadable. ? ?
Erase_All ? is ? the ? same ? as ? Erase . ? ?
Protect_All ? is ? the ? same ? as ? Protect. ? ?
Lock_Bit ? is ? a ? protection ? method. ? Please ? refer ? to ? the ? Device ? Data ? Manual ? for ? the ?
detail ? information ? about ? the ? operations. ? ?
Example: ? ? Atmel ? At89C51 ? has ? three ? operation ? items: ? Lock_Bit1, ? Lock_Bit12, ?
Lock_Bit123. ? The ? data ? manual ? defines ? the ? meaning ? of ? each. ? ?
Device ? Configuration ? Word ? Screen ?
Important : ? ? The ? device ? configuration ? word ? varies ? from ? device ? to ? device. ? Refer ? to ?
the ? device ? data ? manual ? for ? more ? information ? about ? the ? configuration ?
words. ? Set ? the ? configuration ? words ? according ? to ? the ? requirements ? of ?
your ? target ? system. ? Otherwise, ? you ? cannot ? use ? the ? device ? normally ?
even ? if ? it ? is ? normal ? when ? preparing ? and ? verifying ? the ? program. ? ?
Some ? single ‐ chip ? microcomputers ? allow ? special ? working ? modes, ? such ? as ? the ?
storage ? area ? mapping, ? the ? watchdog ? time, ? the ? clock, ? or ? the ? encryption. ? Set ? these ?
special ? modes ? through ? the ? Device ? Configuration ? Word ? option. ? ?
The ? user ? files ? contain ? the ? configuration ? words ? of ? some ? devices. ? When ? you ? load ?
these ? files, ? the ? system ? automatically ? loads ? the ? configuration ? words ? into ? the ?
configuration ? word ? buffer. ? However, ? you ? must ? select ? the ? configuration ? words ? for ?
some ? devices ? manually. ? ?
Superpro ? 5004GP ? User ’s ? Guide ?
?
47 ?
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