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TMP89FS60 Datasheet(PDF) 378 Page - Toshiba Semiconductor |
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TMP89FS60 Datasheet(HTML) 378 Page - Toshiba Semiconductor |
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378 / 410 page ![]() Page 364 22. Serial PROM Mode 22.12 Security TMP89FS60 RA002 22.12.4Recommended settings Table 22-23 shows the option codes and recommended security program settings. Note 1: In parallel PROM mode, Chip Erase can be performed irrespective of the option code setting. Note 2: If the security program is not enabled in parallel PROM mode, ROM data can be read with no restrictions. Make sure that in parallel PROM mode, you always enable the security program to protect ROM data. Table 22-23 Option Codes and Recommended Security Program Settings Device status Serial PROM mode Parallel PROM mode OCD EPFC_OP (0xFFFA) DAFC_OP (0xFFFB) Security Program Memory read Erase Memory read Erase At the time of debug- ging during software development 0xFF 0xFF Disable Password string required Possible Possible Possible Can be used In quantity production 0xFF 0xFF Enable Impossible Possible Impossible Possible Can be used Other than 0xFF Cannot be used Other than 0xFF 0xFF Password string required Can be used Other than 0xFF Cannot be used |
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