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M29F080D 数据表(PDF) 35 Page - STMicroelectronics |
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M29F080D 数据表(HTML) 35 Page - STMicroelectronics |
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35 / 36 page ![]() 35/36 M29F080D Figure 17. In-System Equipment Chip Unprotect Flowchart Note: Block Protection Groups are shown in Appendix A, Table 16. AI05577 WRITE 60h ANY ADDRESS WITH A0 = VIL, A1 = VIH, A6 = VIH n = 0 CURRENT GROUP = 0 Wait 10ms WRITE 40h ADDRESS = CURRENT GROUP ADDRESS A0 = VIL, A1 = VIH, A6 = VIH RP = VIH ++n = 1000 START FAIL PASS YES NO DATA = 00h YES NO RP = VIH Wait 4µs READ DATA ADDRESS = CURRENT GROUP ADDRESS A0 = VIL, A1 = VIH, A6 = VIH RP = VID ISSUE READ/RESET COMMAND ISSUE READ/RESET COMMAND PROTECT ALL GROUPS INCREMENT CURRENT GROUP LAST GROUP YES NO WRITE 60h ANY ADDRESS WITH A0 = VIL, A1 = VIH, A6 = VIH |
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