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M16C/1N датащи(PDF) 205 Page - Renesas Technology Corp |
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M16C/1N датащи(HTML) 205 Page - Renesas Technology Corp |
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205 / 238 page ![]() Rev.1.00 Oct 20, 2004 page 193 of 222 M16C/1N Group 19. Flash Memory Version REJ09B0007-0100Z 19.5.6 Full Status Check When an error occurs, the FMR0 register's FMR06 to FMR07 bits are set to "1", indicating occurrence of each specific error. Therefore, execution results can be verified by checking these status bits (full status check). Table 19.6 lists errors and FMR0 register status. Figure 19.12 shows a full status check flowchart and the action to be taken when each error occurs. Table 19.6 Errors and FMR0 register status FRM00 register (status register) status Error Error occurrence condition FMR07 FMR06 (SR5) (SR4) 11 Command • When any command is not written correctly sequence error • When invalid data was written other than those that can be writ- ten in the second bus cycle of the block erase command (i.e., other than 'xxD016' or 'xxFF16') (Note 1) 10 Erase error • When the block erase command was executed on locked blocks but the blocks were not automatically erased correctly. 01 Program error • When the program command was executed on unlocked blocks but the blocks were not automatically programmed correctly. Note 1: Writing 'xxFF16' in the first bus cycle places the microcomputer in read array mode. Simultaneously, the command code written in the first cycle becomes invalid. |
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