IS25LE128E-RMLA3:P-TY datasheet(168/197 Pages) ISSI

부품명	IS25LE128E-RMLA3:P-TY

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

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IS25LE256E/128E

IS25WE256E/128E

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

168

Rev.A9

03/07/2023

8.61 READ PASSWORD OPERATION (RDPWD, E7h)

The correct password value may be read only after it is programmed and before the Password Mode has been

selected by programming the Password Protection Mode bit to “0” in the ASP Register (ASP[2]). After the Password

Protection Mode is selected the RDPWD command is ignored.

The RDPWD command is shifted in. Then the 64-bit Password is shifted out, least significant byte first, most

significant bit of each byte first. Each bit is shifted out at the SCK frequency by the falling edge of the SCK signal.

It is possible to read the Password continuously by providing multiples of 64bits.

Figure 8.137 Read password Sequence In SPI Mode

Instruction = E7h

CE #

SCK

...

Mode 3

Mode 0

...

st byte Data Out

nd byte Data Out

...

th byte Data Out

IS25LE128E-RMLA3:P-TY 데이터시트(PDF) 168 Page - Integrated Silicon Solution, Inc