IS25LP032 datasheet(47/90 Pages) ISSI

Part #	IS25LP032

Description	3V SERIAL FLASH MEMORY WITH 133MHZ MULTI I/O SPI

PDF	90 Pages

Scroll/Zoom	100%

Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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47 / 90 page

IS25LP032/064/128

Integrated Silicon Solution, Inc.- www.issi.com

Rev. D

10/03/2014

8.19 ENTER QUAD PERIPHERAL INTERFACE (QPI) MODE OPERATION (QIOEN,35h; QIODI,F5h)

The Enter Quad I/O (QIOEN) instruction, 35h, enables the Flash device for QPI bus operation. Upon completion

of the instruction, all instructions thereafter will be 4-bit multiplexed input/output until a power cycle or an Exit

Quad I/O instruction is sent to device.

Figure 8.32 Enter Quad Peripheral Interface OPERATION (QPI)

Instruction = 35h

CE #

SCK

High Impedence

Mode 3

Mode 0

Figure 8.33 Exit Quad Peripheral Interface (QPI) mode OPERATION

The Exit Quad I/O instruction, F5h, resets the device to 1-bit SPI protocol operation. To execute an Exit Quad

I/O operation, the host drives CE# low, sends the Exit Quad I/O command cycle, then drives CE# high. The

device just accepts SQI (2 clocks) command cycles.

F5h

CE#

SCK

IO[3:0]

Mode 3

Mode 0

IS25LP032 Datasheet(PDF) 47 Page - Integrated Silicon Solution, Inc