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IS25LE01G-RILA3-TY 数据表(PDF) 161 Page - Integrated Silicon Solution, Inc |
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IS25LE01G-RILA3-TY 数据表(HTML) 161 Page - Integrated Silicon Solution, Inc |
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161 / 186 page ![]() IS25LE01G IS25WE01G Integrated Silicon Solution, Inc.- www.issi.com 161 Rev. A6 01/14/2025 8.60 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. RDPWD operation is valid only at SPI mode only. Figure 8.132 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 1 st byte Data Out 2 nd byte Data Out ... 8 th byte Data Out Figure 8.133 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 1 st byte Data In 2 nd byte Data In ... 8 th byte Data In |
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