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参数资料
| 型号： | W25Q64CVSSIG |
| 厂商： | WINBOND ELECTRONICS CORP |
| 元件分类： | PROM |
| 英文描述： | 64M X 1 SPI BUS SERIAL EEPROM, PDSO8 |
| 封装： | 0.208 INCH, GREEN, SOIC-8 |
| 文件页数： | 33/79页 |
| 文件大小： | 1086K |
| 代理商： | W25Q64CVSSIG |
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W25Q64CV
Publication Release Date: April 01, 2011
- 39 -
Revision C
7.2.18 Set Burst with Wrap (77h)
The Set Burst with Wrap (77h) instruction is used in conjunction with “Fast Read Quad I/O” and “Word
Read Quad I/O” instructions to access a fixed length of 8/16/32/64-byte section within a 256-byte page.
Certain applications can benefit from this feature and improve the overall system code execution
performance.
Similar to a Quad I/O instruction, the Set Burst with Wrap instruction is initiated by driving the /CS pin low
and then shifting the instruction code “77h” followed by 24 dummy bits and 8 “Wrap Bits”, W7-0. The
instruction sequence is shown in Figure 17. Wrap bit W7 and the lower nibble W3-0 are not used.
W6, W5
W4 = 0
W4 =1 (DEFAULT)
Wrap Around
Wrap Length
Wrap Around
Wrap Length
0 0
Yes
8-byte
No
N/A
0 1
Yes
16-byte
No
N/A
1 0
Yes
32-byte
No
N/A
1 1
Yes
64-byte
No
N/A
Once W6-4 is set by a Set Burst with Wrap instruction, all the following “Fast Read Quad I/O” and “Word
Read Quad I/O” instructions will use the W6-4 setting to access the 8/16/32/64-byte section within any
page. To exit the “Wrap Around” function and return to normal read operation, another Set Burst with
Wrap instruction should be issued to set W4 = 1. The default value of W4 upon power on is 1. In the case
of a system Reset while W4 = 0, it is recommended that the controller issues a Set Burst with Wrap
instruction to reset W4 = 1 prior to any normal Read instructions since W25Q64CV does not have a
hardware Reset Pin.
Wrap Bit
/CS
CLK
Mode 0
Mode 3
0
1
IO
0
IO
1
IO
2
IO
3
2
3
4
5
X
don't
care
6
7
8
9
don't
care
don't
care
10
11
12
13
14
15
Instruction (77h)
Mode 0
Mode 3
X
w4
X
w5
X
w6
X
Figure 17. Set Burst with Wrap Instruction Sequence
相关PDF资料 |
PDF描述 |
|---|---|
| W25Q64CVZPAP | 64M X 1 SPI BUS SERIAL EEPROM, PDSO8 |
| WMS128K8C-25CQE | 128K X 8 STANDARD SRAM, 25 ns, CDIP32 |
| WMF512K8X-150DEC5 | 512K X 8 FLASH 5V PROM, 150 ns, CDSO32 |
| WME128K8X-200DEC | 128K X 8 EEPROM 5V, 200 ns, CDSO32 |
| WMF512K8X-70FEM5 | 512K X 8 FLASH 5V PROM, 70 ns, CDFP32 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| W25Q64CVSSIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCAG | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCAP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCIG | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
| W25Q64CVTCIP | 制造商:WINBOND 制造商全称:Winbond 功能描述:3V 64M-BIT SERIAL FLASH MEMORY WITH DUAL AND QUAD SPI |
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