参数资料
型号: MC9S12C96CPB16
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP52
封装: LQFP-52
文件页数: 101/136页
文件大小: 2022K
代理商: MC9S12C96CPB16
Device User Guide — 9S12C128DGV1/D V01.05
67
of this is the user downloads a key through the SCI which allows access to a programming routine that
updates parameters.
4.3.1 Securing the Microcontroller
Once the user has programmed the FLASH, the part can be secured by programming the security bits
located in the FLASH module. These non-volatile bits will keep the part secured through resetting the part
and through powering down the part.
The security byte resides in a portion of the Flash array.
Check the Flash Block User Guide for more details on the security configuration.
4.3.2 Operation of the Secured Microcontroller
4.3.2.1 Normal Single Chip Mode
This will be the most common usage of the secured part. Everything will appear the same as if the part was
not secured with the exception of BDM operation. The BDM operation will be blocked.
4.3.2.2 Executing from External Memory
The user may wish to execute from external space with a secured microcontroller. This is accomplished
by resetting directly into expanded mode. The internal FLASH will be disabled. BDM operations will be
blocked.
4.3.3 Unsecuring the Microcontroller
In order to unsecure the microcontroller, the internal FLASH must be erased. This can be done through an
external program in expanded mode or via a sequence of BDM commands. Unsecuring is also possible via
the Backdoor Key Access. Refer to Flash Block Guide for details.
Once the user has erased the FLASH, the part can be reset into special single chip mode. This invokes a
program that verifies the erasure of the internal FLASH. 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).
相关PDF资料
PDF描述
MC9S12C96PMPB25 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP52
MC9S12C96VFA16 16-BIT, FLASH, 16 MHz, MICROCONTROLLER, PQFP48
MC9S12C32MPB25 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP52
MC9S12GC16PCPB25 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP52
MC9S12C128VFA25 16-BIT, FLASH, 25 MHz, MICROCONTROLLER, PQFP48
相关代理商/技术参数
参数描述
MC9S12C96CPBE 功能描述:16位微控制器 - MCU 9S12C96 TSMC3 EPP RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C96CPBER 功能描述:IC MCU 96K FLASH 4K RAM 52-LQFP RoHS:是 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HCS12 标准包装:1 系列:87C 核心处理器:MCS 51 芯体尺寸:8-位 速度:16MHz 连通性:SIO 外围设备:- 输入/输出数:32 程序存储器容量:8KB(8K x 8) 程序存储器类型:OTP EEPROM 大小:- RAM 容量:256 x 8 电压 - 电源 (Vcc/Vdd):4 V ~ 6 V 数据转换器:- 振荡器型:外部 工作温度:0°C ~ 70°C 封装/外壳:44-DIP 包装:管件 其它名称:864285
MC9S12C96MFAE 功能描述:16位微控制器 - MCU 9S12C96 (KOI) RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C96MFUE 功能描述:16位微控制器 - MCU 9S12C96 (KOI) RoHS:否 制造商:Texas Instruments 核心:RISC 处理器系列:MSP430FR572x 数据总线宽度:16 bit 最大时钟频率:24 MHz 程序存储器大小:8 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:2 V to 3.6 V 工作温度范围:- 40 C to + 85 C 封装 / 箱体:VQFN-40 安装风格:SMD/SMT
MC9S12C96MPBE 功能描述:IC MCU 96K FLASH 4K RAM 52-LQFP RoHS:否 类别:集成电路 (IC) >> 嵌入式 - 微控制器, 系列:HCS12 标准包装:330 系列:- 核心处理器:- 芯体尺寸:8/16-位 速度:40MHz 连通性:UART/USART 外围设备:DMA,PWM,WDT 输入/输出数:32 程序存储器容量:- 程序存储器类型:外部程序存储器 EEPROM 大小:- RAM 容量:- 电压 - 电源 (Vcc/Vdd):4.5 V ~ 5.5 V 数据转换器:- 振荡器型:内部 工作温度:-40°C ~ 85°C 封装/外壳:100-BQFP 包装:管件