參數(shù)資料
型號(hào): EN25F40-75VCP
廠商: Eon Silicon Solution Inc.
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): 10/33頁(yè)
文件大小: 477K
代理商: EN25F40-75VCP
This Data Sheet may be revised by subsequent versions 2004 Eon Silicon Solution, Inc., www.essi.com.tw
or modifications due to changes in technical specifications.
Rev. B, Issue Date: 2007/05/09
EN25F40
Read Status Register (RDSR) (05h)
The Read Status Register (RDSR) instruction allows the Status Register to be read. The Status Register
may be read at any time, even while a Program, Erase or Write Status Register cycle is in progress. When
one of these cycles is in progress, it is recommended to check the Write In Progress (WIP) bit before
sending a new instruction to the device. It is also possible to read the Status Register continuously, as
shown in Figure 7.
Table 6. Status Register Bit Locations
Note :
In OTP mode, SRP bit is served as OTP_LOCK bit.
The status and control bits of the Status Register are as follows:
WIP bit.
The Write In Progress (WIP) bit indicates whether the memory is busy with a Write Status
Register, Program or Erase cycle. When set to 1, such a cycle is in progress, when reset to 0 no such
cycle is in progress.
WEL bit.
The Write Enable Latch (WEL) bit indicates the status of the internal Write Enable Latch. When
set to 1 the internal Write Enable Latch is set, when set to 0 the internal Write Enable Latch is reset and
no Write Status Register, Program or Erase instruction is accepted.
BP2, BP1, BP0 bits.
The Block Protect (BP2, BP1, BP0) bits are non-volatile. They define the size of the
area to be software protected against Program and Erase instructions. These bits are written with the
Write Status Register (WRSR) instruction. When one or both of the Block Protect (BP2, BP1, BP0) bits is
set to 1, the relevant memory area (as defined in Table 3.) becomes protected against Page Program (PP)
Sector Erase (SE) and , Block Erase (BE), instructions. The Block Protect (BP2, BP1, BP0) bits can be
written provided that the Hardware Protected mode has not been set. The Chip Erase (CE) instruction is
executed if, and only if, both Block Protect (BP2, BP1, BP0) bits are 0.
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相關(guān)代理商/技術(shù)參數(shù)
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EN25F40-75VIP 制造商:EON 制造商全稱:Eon Silicon Solution Inc. 功能描述:4 Mbit Serial Flash Memory with 4Kbytes Uniform Sector
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EN25F40-75WIP 制造商:EON 制造商全稱:Eon Silicon Solution Inc. 功能描述:4 Megabit Serial Flash Memory with 4Kbytes Uniform Sector
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