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поискавой системы для электроныых деталей |
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поискавой системы для электроныых деталей |
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IS25LE512MG-RLLA2:PTY датащи(PDF) 165 Page - Integrated Silicon Solution, Inc |
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IS25LE512MG-RLLA2:PTY датащи(HTML) 165 Page - Integrated Silicon Solution, Inc |
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165 / 194 page  IS25LE512MG IS25WE512MG Integrated Silicon Solution, Inc.- www.issi.com 165 Rev. A6 10/02/2025 8.63 UNLOCK PASSWORD OPERATION (UNPWD, E9h) The UNPWD command is entered by driving CE# low, followed by the instruction code and the password data bytes, least significant byte first, most significant bit of each byte first. The password is 64bits in length. CE# must be driven high after the 64th bit of data has been latched. If not, the UNPWD command is not executed. As soon as CE# is driven high, the UNPWD operation is initiated. While the UNPWD operation is in progress, the Status Register or Extended Read Register may be read to check the value of the Write In Progress (WIP) bit. The WIP bit is “1” during the UNPWD operation, and is “0” when it is completed. If the UNPWD command supplied password does not match the hidden password in the Password Register, the UNPWD command is ignored. This returns the device to standby state, ready for a new command such as a retry of the UNPWD command. If the password does match, the PPB Lock bit is set to “1”. Figure 8.141 Unlock Password Sequence In SPI Mode Instruction = E9h CE # SCK SI SO 0 1 ... 7 8 9 ... 15 16 17 ... 23 ... 64 65 ... Mode 3 Mode 0 7 15 14 8 6 ... 0 63 62 56 ... ... ... 71 1st byte Data In 2nd byte Data In ... 8th byte Data In High Impedence Figure 8.142 Unlock Password Sequence In QPI Mode E9h CE# SCK IO[3:0] 0 1 Mode 3 Mode 0 2 3 4 5 1st byte Data In 2nd byte Data In ... 8th byte Data In ... 16 17 |
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