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GD25LQ256C Datasheet, PDF (51/68 Pages) ELM Electronics – 256M-bit Serial Flash | |||
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GD25LQ256CWIGx 1.8V Uniform Sector Dual and Quad Serial Flash
7.33. Set Read Parameters (C0H)
http://www.elm-tech.com
In QPI mode the âSet Read Parameters (C0H)â command can be used to configure the number of dummy
clocks for âFast Read (0BH)â, âQuad I/O Fast Read (EBH)â, âBurst Read with Wrap (0CH)â, âBurst Read
with Wrap for Lower 128Mb (8CH)â and âBurst Read with Wrap for Higher 128Mb (8DH)â command, and to
configure the number of bytes of âWrap Lengthâ for the âBurst Read with Wrap (0CH)â command. The âWrap
Lengthâ is set by W5-6 bit in the âSet Burst with Wrap (77H)â command. This setting will remain unchanged
when the device is switched from Standard SPI mode to QPI mode.
P5-P4
Dummy Clocks Maximum Read Freq.
P1-P0
Wrap Length
00
4
01
6
10
8
11
8
80MHz
108MHz
120MHz
120MHz
00
8-byte
01
16-byte
10
32-byte
11
64-byte
Figure 35. Set Read Parameters command Sequence Diagram
CS#
SCLK
IO0
IO1
IO2
IO3
012 3
Command Read
C0H Parameters
P4 P0
P5 P1
P6 P2
P7 P3
68 - 51
Rev.1.0
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