GD25Q128C Datasheet, PDF (41/69 Pages) ELM Electronics – 128M-bit Serial Flash

GD25Q128CxIGx 3.3V Uniform Sector Dual and Quad Serial Flash
7.23. Read Manufacture ID/Device ID Dual I/O (92H)
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The Read Manufacturer/Device ID Dual 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
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 Figure26. If the 24-bit address is
initially set to 000001H, the Device ID will be read first.
Figure 26. 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)
69 - 41
Rev.1.2