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ACE25QC160GLDPTH データシート(PDF) 22 Page - ACE Technology Co., LTD. |
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ACE25QC160GLDPTH データシート(HTML) 22 Page - ACE Technology Co., LTD. |
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22 / 73 page  ACE25QC160G 16M BIT SPI NOR FLASH VER 1.2 22 Configuration and Status Instructions Write Enable (06H) See Figure 2, the Write Enable instruction is for setting the Write Enable Latch bit. The Write Enable Latch bit must be set prior to every Page Program, Sector Erase, Block Erase, Chip Erase, Write Status Register instruction and Erase/Program Security Registers instruction. The Write Enable instruction sequence: /CS goes low sending the Write Enable instruction /CS goes high. Write Disable (04H) See Figure 3, the Write Disable instruction is for resetting the Write Enable Latch bit. The Write Disable instruction sequence: /CS goes low -> sending the Write Disable instruction -> /CS goes high. The WEL bit is reset by following condition: Power-up and upon completion of the Write Status Register, Page Program, Sector Erase, Block Erase and Chip Erase, Erase/Program Security Registers and Reset instructions. Figure2. Write Enable Sequence Diagram for SPI Mode (left) or QPI Mode (right) Figure3. Write Disable Sequence Diagram for SPI Mode (left) or QPI Mode (right) |
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