Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.NET

X  

Preview PDF Download HTML

W25Q128FVEIG Datasheet(HTML) 73 Page - Winbond

Part No. W25Q128FVEIG
Description  SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI
Download  97 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  WINBOND [Winbond]
Homepage  http://www.winbond.com
Logo 

W25Q128FVEIG Datasheet(HTML) 73 Page - Winbond

Back Button W25Q128FVEIG Datasheet HTML 73Page - Winbond Next Button
Zoom Inzoom in Zoom Outzoom out
Go To Page :
/ 97 page
background image
W25Q128FV
Publication Release Date: October 01, 2012
- 72 -
Revision D
(IO
1)
8.2.36 Enter QPI Mode (38h)
The W25Q128FV support both Standard/Dual/Quad Serial Peripheral Interface (SPI) and Quad Peripheral
Interface (QPI). However, SPI mode and QPI mode cannot be used at the same time. “Enter QPI (38h)”
instruction is the only way to switch the device from SPI mode to QPI mode.
Upon power-up, the default state of the device upon is Standard/Dual/Quad SPI mode. This provides full
backward compatibility with earlier generations of Winbond serial flash memories. See Instruction Set
Table 1-3 for all supported SPI commands. In order to switch the device to QPI mode, the Quad Enable
(QE) bit in Status Register-2 must be set to 1 first, and an “Enter QPI (38h)” instruction must be issued. If
the Quad Enable (QE) bit is 0, the “Enter QPI (38h)” instruction will be ignored and the device will remain
in SPI mode.
See Instruction Set Table 3 for all the commands supported in QPI mode.
When the device is switched from SPI mode to QPI mode, the existing Write Enable and Program/Erase
Suspend status, and the Wrap Length setting will remain unchanged.
/CS
CLK
DI
(IO
0)
DO
Mode 0
Mode 3
0
1
2
3
4
5
6
7
Instruction (38h)
High Impedance
Mode 0
Mode 3
Figure 50. Enter QPI Instruction (SPI Mode only)


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37  38  39  40  41  42  43  44  45  46  47  48  49  50  51  52  53  54  55  56  57  58  59  60  61  62  63  64  65  66  67  68  69  70  71  72  73  74  75  76  77  78  79  80  81  82  83  84  85  86  87  88  89  90  91  92  93  94  95  96  97 


Datasheet Download

Go To PDF Page


Link URL



Privacy Policy
ALLDATASHEET.NET
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Contact us   |   Privacy Policy   |   Bookmark   |   Link Exchange   |   Manufacturer List
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn