參數(shù)資料
型號: M306H3MC-XXXFP
元件分類: 微控制器/微處理器
英文描述: 16-BIT, MROM, 10 MHz, MICROCONTROLLER, PQFP116
封裝: 20 X 20 MM, 0.65 MM PITCH, PLASTIC, LQFP-116
文件頁數(shù): 87/135頁
文件大小: 2583K
代理商: M306H3MC-XXXFP
Rev.1.00
2004.03.23
page 55 of 320
M306H3MC-XXXFP/FCFP
2.5.4 System Clock Protective Function
When the main clock is selected for the CPU clock source, this function disables the clock against modi-
fications in order to prevent the CPU clock from becoming halted by run-away.
If the PM21 bit of PM2 register is set to “1” (clock modification disabled), the following bits are protected
against writes:
CM02, CM05, and CM07 bits in CM0 register
CM10, CM11 bits in CM1 register
Before the system clock protective function can be used, the following register settings must be made
while the CM05 bit of CM0 register is “0” (main clock oscillating) and CM07 bit is “0” (main clock selected
for the CPU clock source):
(1) Set the PRC1 bit of PRCR register to “1” (enable writes to PM2 register).
(2) Set the PM21 bit of PM2 register to “1” (disable clock modification).
(3) Set the PRC1 bit of PRCR register to “0” (disable writes to PM2 register).
Do not execute the WAIT instruction when the PM21 bit is “1”.
相關(guān)PDF資料
PDF描述
M306H3FCFP 16-BIT, FLASH, 10 MHz, MICROCONTROLLER, PQFP116
M306H5MG-XXXFP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP116
M306H5MG-XXXFP 16-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP116
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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M306H5FGFP#U0 功能描述:IC M16C/6H MCU FLASH 116LQFP RoHS:是 類別:集成電路 (IC) >> 嵌入式 - 微控制器, 系列:M16C™ M16C/60 標(biāo)準(zhǔn)包裝:160 系列:S08 核心處理器:S08 芯體尺寸:8-位 速度:40MHz 連通性:I²C,LIN,SCI,SPI 外圍設(shè)備:LCD,LVD,POR,PWM,WDT 輸入/輸出數(shù):53 程序存儲器容量:32KB(32K x 8) 程序存儲器類型:閃存 EEPROM 大小:- RAM 容量:1.9K x 8 電壓 - 電源 (Vcc/Vdd):2.7 V ~ 5.5 V 數(shù)據(jù)轉(zhuǎn)換器:A/D 12x12b 振蕩器型:內(nèi)部 工作溫度:-40°C ~ 105°C 封裝/外殼:64-LQFP 包裝:托盤
M306H5MC-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SNGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER
M306H5MG-XXXFP 制造商:RENESAS 制造商全稱:Renesas Technology Corp 功能描述:SNGLE-CHIP 16-BIT CMOS MICROCOMPUTER with DATA ACQUISITION CONTROLLER
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