GPR25L12805F datasheet(11/58 Pages) GENERALPLUS

部品番号	GPR25L12805F

部品情報	128M-bit [x 1/x 2/x 4] CMOS Serial Flash

PDF	58 Pages

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メーカー	GENERALPLUS [Generalplus Technology Inc.]

ホームページ	http://www.generalplus.com

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11 / 58 page

GPR25L12805F

Proprietary & Confidential

Nov. 23, 2017

Version: 1.1

Figure 3. Output Timing

8.1. Quad Peripheral Interface (QPI) Read Mode

QPI protocol enables user to take full advantage of Quad I/O Serial Flash by providing the Quad I/O interface in command cycles, address

cycles and as well as data output cycles.

Enable QPI mode

By issuing 35H command, the QPI mode is enable.

Figure 4. Enable QPI Sequence

Reset QPI (RSTQIO)

The Reset QPI instruction, F5H, resets the device to SPI protocol operation.

To execute a Reset QPI operation, the host drives CS# low,

sends the Reset QPI command cycle (F5h) then, drives CS# high.

Both SPI (8 clocks) and QPI (2 clocks) command cycle can accept by this instruction.

The SIO[3:1] are don't care when during SPI mode.

Note: For EQIO/RSTQIO/C0 PCSB high width has to follow "write spec" tSHSL for next instruction.

Figure 5. Reset QPI Mode

GPR25L12805F データシート(PDF) 11 Page - Generalplus Technology Inc.