IS25LE128E-RGLA3:P-TY datasheet(179/197 Pages) ISSI

Part #	IS25LE128E-RGLA3:P-TY

Description	SERIAL FLASH MEMORY 133/166MHZ MULTI I/O SPI & QUAD I/O QPI DTR INTERFACE WITH ON-CHIP ECC

PDF	197 Pages

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Manufacturer	ISSI [Integrated Silicon Solution, Inc]

Direct Link	http://www.issi.com

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179 / 197 page

IS25LE256E/128E

IS25WE256E/128E

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

179

Rev.A9

03/07/2023

8.70 WRITE ECC REGISTER OPERATION (WRECC, B5h)

Before the Write ECC Register (WRECC) command can be accepted by the device, a Write Enable (WREN)

command must be issued and decoded by the device. After the Write Enable (WREN) command has been

decoded successfully, the device will set the Write Enable Latch (WEL) to enable the WRECC operation.

The WRECC command (B5h) is entered by shifting the instruction and data byte on SI.

CE# must be driven to the logic high state after the eighth (8th) bit of data has been latched. If not, the WRECC

command is not executed. As soon as CE# is driven to the logic high state, the WRECC operation is initiated with

no delays.

Figure 8.154 WRECC Sequence In SPI Mode

Instruction = B5h

CE #

SCK

Data In

Mode 3

Mode 0

High Impedence

Figure 8.155 WRECC Sequence In QPI Mode

B5h

Mode 3

Mode 0

7:4

3:0

CE#

SCK

IO[3:0]

Data In

IS25LE128E-RGLA3:P-TY Datasheet(PDF) 179 Page - Integrated Silicon Solution, Inc