GD5F1GQ4REFJS datasheet(25/60 Pages) GIGADEVICE

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SPI(x1/x2/x4) NAND Flash

9.3 Read Parameter Page

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

and 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 Read from

cache command 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.

Figure9-4. 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

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