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M58LR128KB855 Scheda tecnica(PDF) 92 Page - Numonyx B.V |
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M58LR128KB855 Scheda tecnica(HTML) 92 Page - Numonyx B.V |
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92 / 110 page ![]() Flowcharts and pseudocodes M58LR128KT, M58LR128KB, M58LR256KT, M58LR256KB 92/111 Figure 19. Blank check flowchart and pseudocode 1. Any address within the bank can equally be used. 2. If an error is found, the Status Register must be cleared before further Program/Erase operations. Write Block Address & BCh Start SR7 = 1 Write Block Address & CBh Read Status Register (1) SR4 = 1 SR5 = 1 SR5 = 0 NO YES Command Sequence Error (2) YES Blank Check Error (2) NO End blank_check_command (blockToCheck) { writeToFlash (blockToCheck, 0xBC); writeToFlash (blockToCheck, 0xCB); /* Memory enters read status state after the Blank Check Command */ do { status_register = readFlash (blockToCheck); /* see note (1) */ /* E or G must be toggled */ } while (status_register.SR7==0); if (status_register.SR4==1) && (status_register.SR5==1) /* command sequence error */ error_handler () ; if (status_register.SR5==1) /* Blank Check error */ error_handler () ; } ai10520c |
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