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参数资料
| 型号： | M50FW080K1 |
| 厂商： | 意法半导体 |
| 英文描述： | 8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| 中文描述： | 8兆1兆× 8，统一座3V电源闪存固件集线器 |
| 文件页数： | 11/47页 |
| 文件大小： | 765K |
| 代理商： | M50FW080K1 |
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M50FW080
STATUS REGISTER
The Status Register provides information on the
current or previous Program or Erase operation.
Different bits in the Status Register convey differ-
ent information and errors on the operation.
To read the Status Register the Read Status Reg-
ister command can be issued. The Status Register
is automatically read after Program, Erase and
Program/Erase Resume commands are issued.
The Status Register can be read from any ad-
dress.
The Status Register bits are summarized in Table
10.. The following text descriptions should be read
in conjunction with Table 10..
Program/Erase Controller Status (Bit 7). The
Program/Erase Controller Status bit indicates
whether the Program/Erase Controller is active or
inactive. When the Program/Erase Controller Sta-
tus bit is ‘0’, the Program/Erase Controller is ac-
tive; when the bit is ‘1’, the Program/Erase
Controller is inactive.
The Program/Erase Controller Status is ‘0’ imme-
diately after a Program/Erase Suspend command
is issued until the Program/Erase Controller paus-
es. After the Program/Erase Controller pauses the
bit is ‘1’.
During Program and Erase operation the Pro-
gram/Erase Controller Status bit can be polled to
find the end of the operation. The other bits in the
Status Register should not be tested until the Pro-
gram/Erase Controller completes the operation
and the bit is ‘1’.
After the Program/Erase Controller completes its
operation the Erase Status, Program Status, VPP
Status and Block Protection Status bits should be
tested for errors.
Erase Suspend Status (Bit 6). The Erase Sus-
pend Status bit indicates that a Block Erase oper-
ation has been suspended and is waiting to be
resumed. The Erase Suspend Status should only
be considered valid when the Program/Erase
Controller Status bit is ‘1’ (Program/Erase Control-
ler inactive); after a Program/Erase Suspend com-
mand is issued the memory may still complete the
operation rather than entering the Suspend mode.
When the Erase Suspend Status bit is ‘0’ the Pro-
gram/Erase Controller is active or has completed
its operation; when the bit is ‘1’ a Program/Erase
Suspend command has been issued and the
memory is waiting for a Program/Erase Resume
command.
When a Program/Erase Resume command is is-
sued the Erase Suspend Status bit returns to ‘0’.
Erase Status (Bit 5). The Erase Status bit can be
used to identify if the memory has applied the
maximum number of erase pulses to the block(s)
and still failed to verify that the block(s) has erased
correctly. The Erase Status bit should be read
once the Program/Erase Controller Status bit is ‘1’
(Program/Erase Controller inactive).
When the Erase Status bit is ‘0’ the memory has
successfully verified that the block(s) has erased
correctly; when the Erase Status bit is ‘1’ the Pro-
gram/Erase Controller has applied the maximum
number of pulses to the block(s) and still failed to
verify that the block(s) has erased correctly.
Once the Erase Status bit is set to ‘1’ it can only be
reset to ‘0’ by a Clear Status Register command or
a hardware reset. If it is set to ‘1’ it should be reset
before a new Program or Erase command is is-
sued, otherwise the new command will appear to
fail.
Program Status (Bit 4). The Program Status bit
can be used to identify if the memory has applied
the maximum number of program pulses to the
byte and still failed to verify that the byte has pro-
grammed correctly. The Program Status bit should
be read once the Program/Erase Controller Status
bit is ‘1’ (Program/Erase Controller inactive).
When the Program Status bit is ‘0’ the memory has
successfully verified that the byte has pro-
grammed correctly; when the Program Status bit is
‘1’ the Program/Erase Controller has applied the
maximum number of pulses to the byte and still
failed to verify that the byte has programmed cor-
rectly.
Once the Program Status bit is set to ‘1’ it can only
be reset to ‘0’ by a Clear Status Register com-
mand or a hardware reset. If it is set to ‘1’ it should
be reset before a new Program or Erase command
is issued, otherwise the new command will appear
to fail.
VPP Status (Bit 3). The VPP Status bit can be
used to identify an invalid voltage on the VPP pin
during Program and Erase operations. The VPP
pin is only sampled at the beginning of a Program
or Erase operation. Indeterminate results can oc-
cur if VPP becomes invalid during a Program or
Erase operation.
When the VPP Status bit is ‘0’ the voltage on the
VPP pin was sampled at a valid voltage; when the
VPP Status bit is ‘1’ the VPP pin has a voltage that
is below the VPP Lockout Voltage, VPPLK, the
memory is protected; Program and Erase opera-
tion cannot be performed.
Once the VPP Status bit set to ‘1’ it can only be re-
set to ‘0’ by a Clear Status Register command or a
hardware reset. If it is set to ‘1’ it should be reset
before a new Program or Erase command is is-
sued, otherwise the new command will appear to
fail.
相关PDF资料 |
PDF描述 |
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| M50FW080K1G | 8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080NB5T | 8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080NB5TG | 8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M524-012.8M | TCVCXO, CLOCK, 12.8 MHz, CMOS OUTPUT |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| M50FW080K1G | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K1T | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K1TG | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K5 | 制造商:STMICROELECTRONICS 制造商全称:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K5G | 功能描述:闪存 SERIAL FLASH RoHS:否 制造商:ON Semiconductor 数据总线宽度:1 bit 存储类型:Flash 存储容量:2 MB 结构:256 K x 8 定时类型: 接口类型:SPI 访问时间: 电源电压-最大:3.6 V 电源电压-最小:2.3 V 最大工作电流:15 mA 工作温度:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体: 封装:Reel |
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