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номер детали GD5F1GQ4REFJS
подробное описание детали  SPI(x1/x2/x4) NAND Flash
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GD5F1GQ4REFJS датащи(HTML) 25 Page - GigaDevice Semiconductor (Beijing) Inc.

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SPI(x1/x2/x4) NAND Flash
1G
25
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
1)
Set “OTP_EN=1”, Use set_feature set data 0x50 to B0 register, to enable OTP_EN.
2)
Send 13h command with address 24’h000004. Load parameter page from array to cache.
3)
Use 0FH (GET FEATURES command ) read the status
4)
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
0
1
2
3
4
5
6
7
13H
CS#
SCLK
SI
SO
High-Z
8
9 10
28 29 30 31
3
2
1
0
23 22 21
24-bit address
CS#
Get Feature
0
1
2
3
4
5
6
7
0FH
CS#
SLK
SI
SO
High-Z
8
9 10 11 12 13 14 15
7
6
5
4
3
2
1
0
7
6
5
4
3
2
1
0
7
MSB
1 byte address
Data byte
MSB
SCLK
SI
SO
tCS
16 17 18 19 20 21 22 23 24



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