- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄45309 > MC9SDP256BCPVR2 (MOTOROLA INC) 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112 PDF資料下載
參數(shù)資料
| 型號(hào)： | MC9SDP256BCPVR2 |
| 廠商： | MOTOROLA INC |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112 |
| 封裝： | LQFP-112 |
| 文件頁數(shù)： | 108/134頁 |
| 文件大小： | 1454K |
| 代理商： | MC9SDP256BCPVR2 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁當(dāng)前第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁第127頁第128頁第129頁第130頁第131頁第132頁第133頁第134頁
MC9S12DP256B Device User Guide — V02.13
75
4.3.3 Unsecuring the Microcontroller
In order to unsecure the microcontroller, the internal FLASH and EEPROM must be erased. This can be
done through an external program in expanded mode.
Once the user has erased the FLASH and EEPROM, the part can be reset into special single chip mode.
This invokes a program that verifies the erasure of the internal FLASH and EEPROM. Once this program
completes, the user can erase and program the FLASH security bits to the unsecured state. This is generally
done through the BDM, but the user could also change to expanded mode (by writing the mode bits
through the BDM) and jumping to an external program (again through BDM commands). Note that if the
part goes through a reset before the security bits are reprogrammed to the unsecure state, the part will be
secured again.
4.4 Low Power Modes
The microcontroller features three main low power modes. Consult the respective Block User Guide for
information on the module behavior in Stop, Pseudo Stop, and Wait Mode. An important source of
information about the clock system is the Clock and Reset Generator User Guide (CRG).
4.4.1 Stop
Executing the CPU STOP instruction stops all clocks and the oscillator thus putting the chip in fully static
mode. Wake up from this mode can be done via reset or external interrupts.
4.4.2 Pseudo Stop
This mode is entered by executing the CPU STOP instruction. In this mode the oscillator is still running
and the Real Time Interrupt (RTI) or Watchdog (COP) sub module can stay active. Other peripherals are
turned off. This mode consumes more current than the full STOP mode, but the wake up time from this
mode is significantly shorter.
4.4.3 Wait
This mode is entered by executing the CPU WAI instruction. In this mode the CPU will not execute
instructions. The internal CPU signals (address and databus) will be fully static. All peripherals stay active.
For further power consumption the peripherals can individually turn off their local clocks.
4.4.4 Run
Although this is not a low power mode, unused peripheral modules should not be enabled in order to save
power.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MC9SDP256BMPVR2 | 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP112 |
| MCAQE16G6APP-MXA | FLASH MEMORY DRIVE CONTROLLER, PQFP |
| MCBOE32GQAPQ-MWA | FLASH MEMORY DRIVE CONTROLLER, PBGA |
| MC8DE08GQAPR-MWA | FLASH MEMORY DRIVE CONTROLLER, PBGA |
| MCC3E0RX180WB0B | 180 MHz, RISC PROCESSOR, CBGA728 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC9SDT128BMPVR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Freescale Semiconductor 功能描述: |
| MC9SDT256BCPVR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MC9SXDP512VPVR2 | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Freescale Semiconductor 功能描述: |
| MC9Z-2DB | 制造商:IDEC CORPORATION 功能描述:MC2D Color Scrn 2-split top/bt |
| MC9Z-3DB | 制造商:IDEC CORPORATION 功能描述:Super Bright Led Or Incandescent Lamp Illumination Rectangular- And Square-Body Control Units |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。