參數(shù)資料
型號(hào)： M37544G2GP
元件分類： 微控制器/微處理器
英文描述： 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PQFP32
封裝： 7 X 7 MM, 0.80 MM PITCH, PLASTIC, LQFP-32
文件頁數(shù)： 46/70頁
文件大?。?/td> 645K
代理商： M37544G2GP
7544 Group
Rev.1.04
2004.06.08
page 48 of 66
REJ03B0012-0104Z
ROM Code Access Protection
We would like to support a simple ROM code protection function
that prevents a party other than the ROM-code owner to read and
reprogram the builit-in PROM code of the MCU.
The MCU has 7 bytes of dedicated ROM spaces in address
0xFFD4 to 0xFFDA, as an ID-code (referred to as “the ID-code”)
enabling a Programmer to verify with the input ID-code and
validate further operations.
Expected Programmer ID-Code Verification
Function
First, Programmer must check the ID-code of the MCU.
If the ID-code is still in blank, Programmer enables all operations,
Read, Program, and Program-Verify.
When Programmer programs the MCU, Programmer also
programs the given ID-code as well as the actual firmware.
If the ID-code is not blank, Programmer verifies it with the input
ID-code.
When the ID-codes don't match, Programmer will reject all further
operations.
If they match, Programmer perform operations according to the
given command.
ID1
ID2
ID3
ID4
ID5
ID6
ID7
Address
FFD416
FFD516
FFD616
FFD716
FFD816
FFD916
FFDA16
Fig. 63 ROM-Code Protection ID Location
相關(guān)PDF資料
PDF描述
M37544G2SP 8-BIT, OTPROM, 8 MHz, MICROCONTROLLER, PDIP32
M37545G2KP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO32
M37545G8-XXXGP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32
M37545GC-XXXGP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PQFP32
M37545G1KP 8-BIT, MROM, 4 MHz, MICROCONTROLLER, PDSO32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
M37544G2HP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37544G2SP 功能描述:IC 740 MCU OTP 8K 32P4B RoHS:否 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 標(biāo)準(zhǔn)包裝:330 系列:- 核心處理器:- 芯體尺寸:8/16-位 速度:40MHz 連通性:UART/USART 外圍設(shè)備:DMA，PWM，WDT 輸入/輸出數(shù):32 程序存儲(chǔ)器容量:- 程序存儲(chǔ)器類型:外部程序存儲(chǔ)器 EEPROM 大小:- RAM 容量:- 電壓 - 電源 (Vcc/Vdd):4.5 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:- 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 85°C 封裝/外殼:100-BQFP 包裝:管件
M37544M2-XXXGP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37544M2-XXXHP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
M37544M2-XXXSP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
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