參數(shù)資料
型號(hào)： M25P32VMN6P
廠商： 意法半導(dǎo)體
元件分類： FLASH
英文描述： 4 Mbit Uniform Sector, Serial Flash Memory
中文描述： 4兆位統(tǒng)一部門，串行閃存
文件頁(yè)數(shù)： 9/39頁(yè)
文件大小： 506K
代理商： M25P32VMN6P
17/39
M25P32
Write Status Register (WRSR)
The Write Status Register (WRSR) instruction al-
lows new values to be written to the Status Regis-
ter. Before it can be accepted, a Write Enable
(WREN) instruction must previously have been ex-
ecuted. After the Write Enable (WREN) instruction
has been decoded and executed, the device sets
the Write Enable Latch (WEL).
The Write Status Register (WRSR) instruction is
entered by driving Chip Select (S) Low, followed
by the instruction code and the data byte on Serial
Data Input (D).
The instruction sequence is shown in Figure 13..
The Write Status Register (WRSR) instruction has
no effect on b6, b5, b1 and b0 of the Status Reg-
ister. b6 and b5 are always read as 0.
Chip Select (S) must be driven High after the
eighth bit of the data byte has been latched in. If
not, the Write Status Register (WRSR) instruction
is not executed. As soon as Chip Select (S) is driv-
en High, the self-timed Write Status Register cycle
(whose duration is tW) is initiated. While the Write
Status Register cycle is in progress, the Status
Register may still be read to check the value of the
Write In Progress (WIP) bit. The Write In Progress
(WIP) bit is 1 during the self-timed Write Status
Register cycle, and is 0 when it is completed.
When the cycle is completed, the Write Enable
Latch (WEL) is reset.
The Write Status Register (WRSR) instruction al-
lows the user to change the values of the Block
Protect (BP2, BP1, BP0) bits, to define the size of
the area that is to be treated as read-only, as de-
fined in Table 2.. The Write Status Register
(WRSR) instruction also allows the user to set or
reset the Status Register Write Disable (SRWD)
bit in accordance with the Write Protect (W) signal.
The Status Register Write Disable (SRWD) bit and
Write Protect (W) signal allow the device to be put
in the Hardware Protected Mode (HPM). The Write
Status Register (WRSR) instruction is not execut-
ed once the Hardware Protected Mode (HPM) is
entered.
Figure 13. Write Status Register (WRSR) Instruction Sequence
C
D
AI02282D
S
Q
2
1
3456789 10 11 12 13 14 15
High Impedance
Instruction
Status
Register In
0
765432
0
1
MSB
相關(guān)PDF資料
PDF描述
M25P32VMN6T 4 Mbit Uniform Sector, Serial Flash Memory
M25P32VMN6TG 4 Mbit Uniform Sector, Serial Flash Memory
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M25P32VMP3 4 Mbit Uniform Sector, Serial Flash Memory
M25P32VMP3G 4 Mbit Uniform Sector, Serial Flash Memory
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M25P32VMN6T 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
M25P32VMN6TG 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
M25P32VMN6TP 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
M25P32VMP3 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
M25P32VMP3G 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:512 Kbit to 32 Mbit, Low Voltage, Serial Flash Memory With 40 MHz or 50 MHz SPI Bus Interface
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