GD25Q32 Datasheet, PDF (32/50 Pages) ELM Electronics – 3.3V Uniform Sector Dual and Quad Serial Flash

GD25Q32CxIGx 3.3V Uniform Sector Dual and Quad Serial Flash
7.24. Dual I/O Read Manufacture ID/Device ID (92H)
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The Dual I/O Read Manufacturer/Device ID 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
dual I/O.
The command is initiated by driving the CS# pin low and shifting the command code “92H” 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 in Figure29. If the 24-bit address is
initially set to 000001H, the Device ID will be read first.
Figure 29. Read Manufacture ID/Device ID Dual I/O Sequence Diagram
CS#
SCLK
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
SI(IO0)
Command
92H
6420642064206420
SO(IO1)
7531753175317531
A23-16
A15-8
A7-0
M7-0
CS#
SCLK ^{23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47}
SI(IO0) _{6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0}
SO(IO1)
753175317531753175317531
MFR ID
Device ID
MFR ID
(Repeat)
Device ID
(Repeat)
MFR ID
(Repeat)
Device ID
(Repeat)
7.25. Quad I/O Read Manufacture ID/Device ID (94H)
The Quad I/O Read Manufacturer/Device ID 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. and 4 dummy clocks. 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 in Figure30. If the
24-bit address is initially set to 000001H, the Device ID will be read first.
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