IS25LP032D-RBLA3 datasheet(75/118 Pages) ISSI

75 / 118 page

IS25LP032D

IS25WP032D

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

Rev. A12

08/04/2020

8.30 READ PRODUCT IDENTIFICATION BY JEDEC ID OPERATION (RDJDID, 9Fh; RDJDIDQ, AFh)

The JEDEC ID READ instruction allows the user to read the manufacturer and product ID of devices. Refer to Table

8.5 Product Identification for Manufacturer ID and Device ID. After the JEDEC ID READ command (9Fh in SPI

mode and QPI mode, AFh in QPI mode) is input, the Manufacturer ID is shifted out MSB first followed by the 2-

byte electronic ID (ID15-ID0) that indicates Memory Type and Capacity, one bit at a time. Each bit is shifted out

during the falling edge of SCK. If CE# stays low after the last bit of the 2-byte electronic ID, the Manufacturer ID

and 2-byte electronic ID will loop until CE# is pulled high.

Figure 8.52 RDJDID (Read JEDEC ID) Sequence In SPI Mode

Instruction = 9Fh

Memory Type

(ID15-ID8)

CE #

SCK

Capacity

(ID7-ID0)

...

Mode 3

Mode 0

Manufacturer ID

(MF7-MF0)

Figure 8.53 RDJDID and RDJDIDQ (Read JEDEC ID) Sequence In QPI Mode

9Fh/AFh

CE#

SCK

IO[3:0]

Mode 3

Mode 0

7:4

3:0

7:4

3:0

7:4

3:0

MF7-MF0

ID15-ID8

ID7-ID0

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