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GD25LE80CSJG データシート(PDF) 33 Page - GigaDevice Semiconductor (Beijing) Inc. |
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GD25LE80CSJG データシート(HTML) 33 Page - GigaDevice Semiconductor (Beijing) Inc. |
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33 / 68 page ![]() 1.8V Uniform Sector Dual and Quad Serial Flash GD25LE80C 33 7.24 Read Manufacture ID/ Device ID Quad I/O (94H) The Read Manufacturer/Device ID Quad I/O command is an alternative to the Release from Power-Down / Device ID command that provides both the JEDEC assigned Manufacturer ID and the specific Device ID by quad I/O. The command is initiated by driving the CS# pin low and shifting the command code “94H” followed by a 24-bit address (A23-A0) of 000000H. After which, the Manufacturer ID and the Device ID are shifted out on the falling edge of SCLK with most significant bit (MSB) first as shown below. If the 24-bit address is initially set to 000001H, the Device ID will be read first. Figure 28. Read Manufacture ID/ Device ID Quad I/O Sequence Diagram Command 0 1 2 3 4 5 6 7 94H CS# SCLK SI(IO0) SO(IO1) 8 9 10 11 12 13 14 15 4 0 4 0 4 0 4 0 16 17 18 19 20 21 22 23 4 0 4 0 5 1 5 1 5 1 5 1 5 1 5 1 A23-16 A15-8 A7-0 M7-0 6 2 6 2 6 2 6 2 6 2 6 2 7 3 7 3 7 3 7 3 7 3 7 3 WP#(IO2) HOLD#(IO3) Dummy MFR ID DID CS# SCLK SI(IO0) SO(IO1) WP#(IO2) HOLD#(IO3) 24 25 26 27 28 29 30 31 4 0 4 0 5 1 5 1 6 2 6 2 7 3 7 3 MFR ID (Repeat) DID (Repeat) 4 0 4 0 5 1 5 1 6 2 6 2 7 3 7 3 MFR ID (Repeat) DID (Repeat) |
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