GD5F2GQ4RFZJS datasheet(25/57 Pages) GIGADEVICE

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SPI(x1/x2/x4) NAND Flash

10.3 Read Parameter Page

The Read Parameter Page function retrieves the data structure that describes the chip’s organization, features, timing-

sand other behavioral parameters. This data structure enables the host processor to automatically recognize the SPI-

NAND Flash configuration of a device. The whole data structure is repeated at least three times. The Random Data Read

command (05H-E0H) can be issued during execution of the read parameter page to read specific portion-soft the parameter

page.

The Read parameter page command sequence is as follows

Set “OTP_EN=1”, Use set_feature set data 0x50 to B0 register, to enable OTP_EN.

Send 13h command with address 24’h000004. Load parameter page from array to cache.

Use 0FH (GET FEATURES command ) read the status

User can use Read from cache command (03H/0BH/3BH/6BH/BBH/EBH), read parameter page from cache.

Figure10-4. Read parameter page to cache and Get Feature command Sequence Diagram

Command

13H

CS#

SCLK

High-Z

9 10

28 29 30 31

23 22 21

24-bit address

CS#

Get Feature

0FH

CS#

SLK

High-Z

9 10 11 12 13 14 15

MSB

1 byte address

Data byte

MSB

SCLK

tCS

16 17 18 19 20 21 22 23 24

GD5F2GQ4RFZJS Datasheet(PDF) 25 Page - GigaDevice Semiconductor (Beijing) Inc.