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M95160-R Folha de dados(PDF) 16 Page - STMicroelectronics |
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M95160-R Folha de dados(HTML) 16 Page - STMicroelectronics |
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16 / 47 page ![]() Instructions M95160 M95160-W M95160-R M95160-DF 16/47 DocID022580 Rev 5 6 Instructions Each command is composed of bytes (MSBit transmitted first), initiated with the instruction byte, as summarized in Table 3. If an invalid instruction is sent (one not contained in Table 3), the device automatically enters a Wait state until deselected. For read and write commands to memory array and Identification Page, the address is defined by two bytes as explained in Table 4. Table 3. Instruction set Instruction Description Instruction format WREN Write Enable 0000 0110 WRDI Write Disable 0000 0100 RDSR Read Status Register 0000 0101 WRSR Write Status Register 0000 0001 READ Read from Memory Array 0000 0011 WRITE Write to Memory Array 0000 0010 RDID(1) 1. Instruction available only for the M95160-D device. Read Identification Page 1000 0011 WRID(1) Write Identification Page 1000 0010 RDLS(1) Reads the Identification Page lock status 1000 0011 LID(1) Locks the Identification page in read-only mode 1000 0010 Table 4. Significant bits within the two address bytes(1)(2) Instructions MSB Address byte LSB Address byte b15 b14 b13 b12 b11 b10 b9 b8 b7 b6 b5 b4 b3 b2 b1 b0 READ or WRITE x xxxx A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 RDID or WRID(3) 00 000000 000 A4 A3 A2 A1 A0 RDLS or LID(3) 00 000100 00000 000 1. A: Significant address bit. 2. x: bit is Don’t Care. 3. Instruction available only for the M95160-D device. |
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