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參數(shù)資料
| 型號(hào)： | M38507E8FP |
| 廠商： | Mitsubishi Electric Corporation |
| 英文描述： | SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER |
| 中文描述： | 單芯片8位CMOS微機(jī) |
| 文件頁(yè)數(shù)： | 46/86頁(yè) |
| 文件大小： | 1193K |
| 代理商： | M38507E8FP |
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46
3850 Group (Spec. H)
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER
MITSUBISHI MICROCOMPUTERS
Functions To Inhibit Rewriting Flash Memory
Version
To prevent the contents of the flash memory version from being read
out or rewritten easily, the device incorporates a ROM code protect
function for use in parallel I/O mode and an ID code check function
for use in standard serial I/O mode.
ROM code protect function
The ROM code protect function is the function inhibit reading out or
modifying the contents of the flash memory version by using the
ROM code protect control address (FFDB
16
) during parallel I/O
mode. Figure 50 shows the ROM code protect control address
(FFDB
16
). (This address exists in the user ROM area.)
If one of the pair of ROM code protect bits is set to
“
0
”
, ROM code
protect is turned on, so that the contents of the flash memory ver-
sion are protected against readout and modification. ROM code
protect is implemented in two levels. If level 2 is selected, the flash
memory is protected even against readout by a shipment inspection
LSI tester, etc. When an attempt is made to select both level 1 and
level 2, level 2 is selected by default.
If both of the two ROM code protect reset bits are set to
“
00
”
, ROM
code protect is turned off, so that the contents of the flash memory
version can be read out or modified. Once ROM code protect is
turned on, the contents of the ROM code protect reset bits cannot
be modified in parallel I/O mode. Use the serial I/O or some other
mode to rewrite the contents of the ROM code protect reset bits.
Fig. 50 ROM code protect control address
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| M38507F8AFP#U1 | 功能描述:IC 740/3850 MCU FLASH 42SSOP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器， 系列:740/38000 產(chǎn)品培訓(xùn)模塊:CAN Basics Part-1 CAN Basics Part-2 Electromagnetic Noise Reduction Techniques Part 1 M16C Product Overview Part 1 M16C Product Overview Part 2 標(biāo)準(zhǔn)包裝:1 系列:M16C™ M32C/80/87 核心處理器:M32C/80 芯體尺寸:16/32-位 速度:32MHz 連通性:EBI/EMI，I²C，IEBus，IrDA，SIO，UART/USART 外圍設(shè)備:DMA，POR，PWM，WDT 輸入/輸出數(shù):121 程序存儲(chǔ)器容量:384KB（384K x 8） 程序存儲(chǔ)器類型:閃存 EEPROM 大小:- RAM 容量:24K x 8 電壓 - 電源 (Vcc/Vdd):3 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 34x10b，D/A 2x8b 振蕩器型:內(nèi)部 工作溫度:-20°C ~ 85°C 封裝/外殼:144-LQFP 包裝:托盤 產(chǎn)品目錄頁(yè)面:749 (CN2011-ZH PDF) 配用:R0K330879S001BE-ND - KIT DEV RSK M32C/87 |
| M38507F8AFP#W1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 3/5V 32K PB-FREE 42-SSOP T&R - Tape and Reel |
| M38507F8FP | 制造商:Renesas Electronics Corporation 功能描述:MCU 8-Bit 740 CISC 32KB Flash 5V 42-Pin SSOP 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#U1 | 制造商:Renesas Electronics Corporation 功能描述:MCU 8BIT 740 CISC 32KB FLASH 5V 42SSOP - Trays |
| M38507F8FP#W1 | 制造商:Renesas Electronics Corporation 功能描述:FLASH 8-BIT 2.7 TO 5.5V PBFREE |
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