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IS25LE512MG-RMLA2:PTY датащи(PDF) 154 Page - Integrated Silicon Solution, Inc |
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IS25LE512MG-RMLA2:PTY датащи(HTML) 154 Page - Integrated Silicon Solution, Inc |
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154 / 194 page ![]() IS25LE512MG IS25WE512MG Integrated Silicon Solution, Inc.- www.issi.com 154 Rev. A6 10/02/2025 8.53 READ PPB OPERATION (RDPPB, FCh or 4RDPPB, E2h) FCh (EXTADD=0) is followed by a 3-byte address (A23-A0) or FCh (EXTADD=1) is followed by a 4-byte address (A31-A0) or E2h is followed by a 4-byte address (A31-A0) The instruction code is shifted into SI by the rising edges of the SCK signal, followed by the 24-bit or 32-bit address selecting location zero within the desired sector/block as above. Then the 8-bit PPB Access Register contents are shifted out on SO. The RDPPB/4RDPPB is supporting only SPI, not supporting QPI. It is possible to read the same PPB Access Register continuously by providing multiples of eight bits. The address of the PPB Access Register does not increment so this is not a means to read the entire PPB array. Each location must be read with a separate Read PPB command. Note: Data must be either 00h (protected) or FFh (unprotected). Figure 8.119 Read PPB Sequence (FCh [EXTADD=0], 3-byte address) Instruction = FCh CE # SCK SI SO 0 1 ... 7 8 9 ... 31 32 33 34 35 36 37 38 39 Mode 3 Mode 0 3-byte Address tV 7 3 2 1 0 6 5 4 Figure 8.120 Read PPB Sequence (FCh [EXTADD=1] or E2h, 4-byte address) Instruction = FCh/E2h CE # SCK SI SO 0 1 ... 7 8 9 ... 39 40 41 42 43 44 45 46 47 Mode 3 Mode 0 4-byte Address tV 7 3 2 1 0 6 5 4 |
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