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參數(shù)資料
| 型號： | M50FW040NB5TG |
| 廠商： | 意法半導(dǎo)體 |
| 英文描述： | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| 中文描述： | 4兆位（512 KB的× 8，均勻塊）3 - V電源供電的閃存固件樞紐 |
| 文件頁數(shù)： | 31/53頁 |
| 文件大?。?/td> | 278K |
| 代理商： | M50FW040NB5TG |
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M50FW040
Firmware hub (FWH) interface Configuration Registers
31/53
6.1.3
Lock Down
The Lock Down Bit provides a mechanism for protecting software data from simple hacking
and malicious attack. When the Lock Down Bit is set, ‘1’, further modification to the Write
Lock, Read Lock and Lock Down Bits cannot be performed. A reset or power-up is required
before changes to these bits can be made. When the Lock Down Bit is reset, ‘0’, the Write
Lock, Read Lock and Lock Down Bits can be changed.
6.2
Firmware Hub (FWH) General-Purpose Input Register
The Firmware Hub (FWH) General Purpose Input Register holds the state of the Firmware
Hub Interface General Purpose Input pins, FGPI0-FGPI4. When this register is read, the
state of these pins is returned. This register is read-only and writing to it has no effect.
The signals on the Firmware Hub Interface General Purpose Input pins should remain
constant throughout the whole Bus Read cycle in order to guarantee that the correct data is
read.
6.3
Manufacturer Code Register
Reading the Manufacturer Code Register returns the manufacturer code for the memory.
The manufacturer code for STMicroelectronics is 20h. This register is read-only and writing
to it has no effect.
6.4
Device Code Register
Reading the Device Code Register returns the device code for the memory, 2Ch. This
register is read-only and writing to it has no effect.
6.5
Firmware Hub (FWH) General-Purpose Input Register
The Firmware Hub (FWH) General Purpose Input Register holds the state of the Firmware
Hub Interface General Purpose Input pins, FGPI0-FGPI4. When this register is read, the
state of these pins is returned. This register is read-only and writing to it has no effect.
The signals on the Firmware Hub Interface General Purpose Input pins should remain
constant throughout the whole Bus Read cycle in order to guarantee that the correct data is
read.
6.6
Manufacturer Code Register
Reading the Manufacturer Code Register returns the manufacturer code for the memory.
The manufacturer code for STMicroelectronics is 20h. This register is read-only and writing
to it has no effect.
相關(guān)PDF資料 |
PDF描述 |
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| M50FW040NB5TP | 4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50LPW116 | 16 Mbit 2Mb x8, Boot Block 3V Supply Low Pin Count Flash Memory |
| M50LPW116N | 16 Mbit 2Mb x8, Boot Block 3V Supply Low Pin Count Flash Memory |
| M50LPW116N1T | 16 Mbit 2Mb x8, Boot Block 3V Supply Low Pin Count Flash Memory |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M50FW040NB5TP | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:4-Mbit (512 Kb x8, uniform block) 3-V supply firmware hub Flash memory |
| M50FW080 | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
| M50FW080K1 | 功能描述:閃存 3.6V 8M (1Mx8) RoHS:否 制造商:ON Semiconductor 數(shù)據(jù)總線寬度:1 bit 存儲類型:Flash 存儲容量:2 MB 結(jié)構(gòu):256 K x 8 定時(shí)類型: 接口類型:SPI 訪問時(shí)間: 電源電壓-最大:3.6 V 電源電壓-最小:2.3 V 最大工作電流:15 mA 工作溫度:- 40 C to + 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體: 封裝:Reel |
| M50FW080K1G | 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:8 Mbit 1Mb x8, Uniform Block 3V Supply Firmware Hub Flash Memory |
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