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IS25LE512MG-RGLA2:PTY датащи(PDF) 163 Page - Integrated Silicon Solution, Inc |
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IS25LE512MG-RGLA2:PTY датащи(HTML) 163 Page - Integrated Silicon Solution, Inc |
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163 / 194 page ![]() IS25LE512MG IS25WE512MG Integrated Silicon Solution, Inc.- www.issi.com 163 Rev. A6 10/02/2025 8.61 READ PASSWORD OPERATION (RDPWD, E7h) The correct password value may be read only after it is programmed and before the Password Mode has been selected by programming the Password Protection Mode bit to “0” in the ASP Register (ASP[2]). After the Password Protection Mode is selected the RDPWD command is ignored. The RDPWD command is shifted in. Then the 64-bit Password is shifted out, least significant byte first, most significant bit of each byte first. Each bit is shifted out at the SCK frequency by the falling edge of the SCK signal. It is possible to read the Password continuously by providing multiples of 64bits. Figure 8.137 Read password Sequence In SPI Mode Instruction = E7h CE # SCK SI SO 0 1 ... 7 8 9 ... 15 16 17 ... 23 ... 64 65 ... Mode 3 Mode 0 tV 7 15 14 8 6 ... 0 63 62 56 ... ... ... 71 1st byte Data Out 2nd byte Data Out ... 8th byte Data Out Figure 8.138 Read Password Sequence In QPI Mode E7h CE# SCK IO[3:0] 0 1 Mode 3 Mode 0 2 3 4 5 tV ... 16 17 1st byte Data In 2nd byte Data In ... 8th byte Data In |
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