MC9S12B128芯片解密是FREESCALE系列单片机解密领域较疑难型解密芯片之一，也是近期邦凯在FREESCALE系列芯片解密技术研究中成功破解的典型芯片型号。随着我们对MC9S12B128芯片的成功破解，在MOTOROLA系列单片机解密领域的研究又步入新的研究阶段，后期我们还将有更多型号被成功破解，将为更多客户提供最优质可靠的解密服务。
　　下面我们将针对MC9S12B128芯片的主要特征做简单介绍，供广大的技术工程师及芯片解密客户参考借鉴，以方便其理解芯片的内部结构及其加解密性质，更好的进行技术分析。
　　如果客户有MC9S12B128芯片解密需求，请与邦凯联系
　　ic解密/芯片解密/单片机破解咨询热线：086-0755-83003639
　　E-mail：market2@pcblab.net

　　MC9S12B128 Features
　　16-bit CPU12
　　— Upward compatible with M68HC11 instruction set
　　— Interrupt stacking and programmer’s model identical to M68HC11
　　— 20-bit ALU
　　— Instruction queue
　　— Enhanced indexed addressing
　　Multiplexed bus
　　— Single chip or expanded
　　— 16 address/16 data wide or 16 address/8 data narrow modes
　　— External address space 1MByte for Data and Program space (112 pin package only)
　　Wake-up interrupt inputs depending on the package option
　　— 8-bit port H
　　— 4-bit port J
　　— 8-bit port P shared with PWM
　　Memory options
　　— 64K, 128K, 256K Byte Flash EEPROM
　　— 1K, 2K Byte EEPROM
　　— 2K, 4K and 8K Byte RAM
　　Analog-to-Digital Converter
　　— 16-channels for 112 Pin Package, 8 channels for 80 Pin package options, 10-bit resolution
　　— External conversion trigger capability
　　1M bit per second, CAN 2.0 A, B software compatible module
　　— Five receive and three transmit buffers
　　— Flexible identifier filter programmable as 2 x 32 bit, 4 x 16 bit or 8 x 8 bit
　　— Four separate interrupt channels for Rx, Tx, error and wake-up
　　— Low-pass filter wake-up function
　　— Loop-back for self test operation
　　Input Capture/Output Compare Timer (TIM)
　　— 16-bit Counter with 7-bit Prescaler
　　— 8 programmable input capture or output compare channels
　　— Simple PWM Mode
　　— Modulo Reset of Timer Counter
　　— 16-bit Pulse Accumulator
　　— External Event Counting
　　— Gated Time Accumulation
　　8 PWM channels with programmable period and duty cycle (7 channels on 80 Pin Packages)
　　— 8-bit 8-channel or 16-bit 4-channel
　　— Separate control for each pulse width and duty cycle
　　— Center- or left-aligned outputs
　　— Programmable clock select logic with a wide range of frequencies
　　Serial interfaces
　　— Two asynchronous serial communications interfaces (SCI)
　　— synchronous serial peripheral interface (SPI)
　　Inter-IC Bus (IIC)
　　— Compatible with I2C Bus standard
　　— Multi-master operation
　　— Software programmable for one of 256 different serial clock frequencies
　　SIM (System Integration Module)
　　— CRG (windowed COP watchdog, real time interrupt, clock monitor, clock generation and reset)
　　— MEBI (multiplexed external bus interface)
　　— MMC (memory map and interface)
　　— INT (interrupt control)
　　— BKP (breakpoints)
　　— BDM (background debug mode)
　　Clock generation
　　— Phase-locked loop clock frequency multiplier
　　— Limp home mode in absence of external clock
　　— Clock Monitor
　　— Low power 0.5 to 16 MHz crystal oscillator reference clock
　　Operation frequency
　　— 32MHz equivalent to 16MHz Bus Speed for single chip
　　— 32MHz equivalent to 16MHz Bus Speed in expanded bus modes
　　— Option: 50MHz equivalent to 25Mhz Bus Speed
　　Internal 5V to 2.5V Regulator
　　112-Pin or 80-Pin LQFP package
　　— I/O lines with 5V input and drive capability
　　— 5VA/D converter inputs
　　— Dual supply - 5V for I/O and A/D, 2.5V logic
　　Development support
　　— Single-wire background debug? mode (BDM)
　　— On-chip hardware breakpoints