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38K2 Datasheet(PDF) 127 Page - Renesas Technology Corp |
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38K2 Datasheet(HTML) 127 Page - Renesas Technology Corp |
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127 / 358 page  FUNCTIONAL DESCRIPTION Rev.2.00 Oct 15, 2006 page 108 of 130 38K2 Group REJ09B0338-0200 HARDWARE Full Status Check By performing full status check, it is possible to know the execu- tion results of erase and program operations. Figure 151 shows a full status check flowchart and the action to be taken when each error occurs. Fig. 151 Full status check flowchart and remedial procedure for errors Read status register SR4 = 1 and SR5 = 1 ? NO YES SR5 = 0 ? YES Erase error NO SR4 = 0 ? YES NO Command sequence error Program error End (block erase, program) Execute the clear status register command (5016) to clear the status register. Try performing the operation one more time after confirming that the command is entered correctly. Should an erase error occur, the block in error cannot be used. Note: When one of SR5 and SR4 is set to “1”, none of the program, erase all blocks, and block erase commands is accepted. Execute the clear status register command (5016) before executing these commands. Should a program error occur, the block in error cannot be used. |
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