国产精品一区二区三区三洲欧洲 ,香蕉色视频

您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄67761 > M32185F4VFP 32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144 PDF資料下載

型號(hào)：	M32185F4VFP
元件分類：	微控制器/微處理器
英文描述：	32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144
封裝：	20 X 20 MM, 0.50 MM PITCH, PLASTIC, LQFP-144
文件頁數(shù)：	141/1032頁
文件大?。?/td>	5750K
代理商：	M32185F4VFP

INTERNAL MEMORY

32185/32186 Group Hardware Manual

Rev.1.10 REJ09B0235-0110 May 15, 07

6.10 Internal Flash Memory Protect Function

The internal flash memory has the following four types of protect functions to prevent it from being inadvertently

rewritten or illegally copied, programmed or erased.

(1) Flash memory protect ID

When using a tool to program/erase the internal flash memory such as a general-purpose programmer or

emulator, the ID entered by a tool and the ID stored in the internal flash memory are collated. Unless the correct

ID is entered, the internal flash memory cannot be read out, programmed nor erased. (For some tools, tool

execution is enabled after erasing the entire flash memory area, and the internal flash memory becomes

accessible for write.)

(2) Protection by FP pin

The internal flash memory is protected in hardware against programming/erase operation by pulling the FP

(Flash Protect) pin "L." For systems that do not require rewriting flash memory or systems in which flash

reprogramming is prohibited as in the case of automotive applications, make sure the FP pin is fixed "L" except

when programming or erasing the internal flash memory. Furthermore, because the FP pin level can be known

by reading the Flash Mode Register (FMOD)’s FPMOD (external FP pin status) bit in the flash write/erase

program, the internal flash memory can also be protected in software. For systems that do not require protec-

tion by setting external pins, the FP pin may be fixed "H" to simplify the operation to program/erase the internal

flash memory. However, to prevent the flash memory from being inadvertently rewritten by an erratic operation

in software, use the protection by a lock bit described in (4) below.

When programming/erasing via JTAG, the flash memory can be programmed or erased regardless of the pin

state because the FP pin is controlled internally within the chip.

(3) Protection by FENTRY bit

Flash E/W enable mode cannot be entered into unless the Flash Control Register 1 (FCNT1)’s FENTRY (flash

mode entry) bit is set to "1." To set the FENTRY bit to "1," write "0" and then "1" in succession while the FP pin is "H."

(4) Protection by a lock bit

Any block of internal flash memory can be protected by setting the lock bit provided for it to "0." That memory

block is disabled against programming/erase operation.

6.10 Internal Flash Memory Protect Function

相關(guān)PDF資料	PDF描述
M32185F4VFP	32-BIT, FLASH, 80 MHz, RISC MICROCONTROLLER, PQFP144
M34283G2GP	4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
M34283G2-XXXGP	4-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO20
M34502E4FP	4-BIT, OTPROM, MICROCONTROLLER, PDSO24
M34502M4-XXXFP	4-BIT, MROM, MICROCONTROLLER, PDSO24

相關(guān)代理商/技術(shù)參數(shù)	參數(shù)描述
M32186F8VFP	制造商:Renesas Electronics Corporation 功能描述:
M3219	功能描述:電纜固定件和配件 LTCG PG-16 BLACK With 3173 NUT RoHS:否制造商:Heyco 類型:Cable Grips, Liquid Tight 材料:Nylon 顏色:Black 安裝方法:Cable 最大光束直徑:11.4 mm 抗拉強(qiáng)度:
M32192F8TFP#U0	制造商:Renesas Electronics Corporation 功能描述:MCU 32-bit M32R RISC 1024KB Flash 3.3V/5V 144-Pin LQFP
M32192F8VFP	制造商:Renesas Electronics Corporation 功能描述:
M321-SERIES	制造商:未知廠家制造商全稱:未知廠家功能描述:Peripheral IC

發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

(若只采購一條型號(hào)，填寫一行即可)

*型號(hào)	*數(shù)量	廠商	批號(hào)	封裝