Àû²©¡¤(¼¯ÍÅ)ÓÐÏÞ¹«Ë¾¹ÙÍø

Introduction

The MC9S12E128 is a 112/80/64 pin low cost general purpose MCU comprised of standard on-chip peripherals including a 16-bit central processing unit (HCS12 CPU), up to 128K bytes of Flash EEPROM, up to 8K bytes of RAM, three asynchronous serial communications interface modules (SCI), a serial peripheral interface (SPI), an Inter-IC Bus (IIC), three 4-channel 16-bit timer modules (TIM), a 6-channel 15-bit Pulse Modulator with Fault protection module (PMF), a 6-channel 8-bit Pulse Width Modulator (PWM), a 16-channel 10-bit analog-to-digital converter (ADC), and two 1-channel 8-bit digital-to-analog converters (DAC). The MC9S12E128 has full 16-bit data paths throughout. The inclusion of a PLL circuit allows power consumption and performance to be adjusted to suit operational requirements. In addition to the I/O ports available on each module, 16 dedicated I/O port bits are available with Wake-Up capability from STOP or WAIT mode. Furthermore, an on chip bandgap based voltage regulator (VREG) generates

the internal digital supply voltage of 2.5V (VDD) from a 3.135V to 5.5V external supply range.

Features

? 16-bit HCS12 CORE

¡ª HCS12 CPU

¨C i. Upward compatible with M68HC11 instruction set

¨C ii. Interrupt stacking and programmer¡¯s model identical to M68HC11

¨C iii. Instruction queue

¨C iv. Enhanced indexed addressing

¡ª Module Mapping Control (MMC)

¡ª Interrupt control (INT)

¡ª Background Debug Module (BDM)

¡ª Debugger (DBG12) including breakpoints and change-of-flow trace buffer

¡ª Multiplexed External Bus Interface (MEBI)

? Wake-Up interrupt inputs

¡ª Up to 16 port bits available for wake up interrupt function with digital filtering

? Memory Options

¡ª 32K, 64K or 128K Byte Flash EEPROM

¡ª 2K, 4K or 8K Byte RAM

? Two 1-channel Digital-to-Analog Converters (DAC)

¡ª 8-bit resolution

? Analog-to-Digital Converter (ADC)

¡ª 16-channel module with 10-bit resolution

¡ª External conversion trigger capability

? Three 4-channel Timers (TIM)

¡ª Programmable input capture or output compare channels

¡ª Simple PWM mode

¡ª Counter modulo reset

¡ª External event counting

¡ª Gated time accumulation

? 6 PWM channels (PWM)

¡ª Programmable period and duty cycle

¡ª 8-bit 6-channel or 16-bit 3-channel

¡ª Separate control for each pulse width and duty cycle

¡ª Center-aligned or left-aligned outputs

¡ª Programmable clock select logic with a wide range of frequencies

¡ª Fast emergency shutdown input

? 6-channel Pulse width Modulator with Fault protection (PMF)

¡ª Three independent 15-bit counters with synchronous mode

¡ª Complementary channel operation

¡ª Edge and center aligned PWM signals

¡ª Programmable dead time insertion

¡ª Integral reload rates from 1 to 16

¡ª Four fault protection shut down input pins

¡ª Three current sense input pins

? Serial interfaces

¡ª Three asynchronous serial communication interfaces (SCI)

¡ª Synchronous serial peripheral interface (SPI)

¡ª Inter-IC Bus (IIC)

? Clock and Reset Generator (CRG)

¡ª Windowed COP watchdog

¡ª Real Time interrupt

¡ª Clock Monitor

¡ª Pierce or low current Colpitts oscillator

¡ª Phase-locked loop clock frequency multiplier

¡ª Self Clock mode in absence of external clock

¡ª Low power 0.5 to 16Mhz crystal oscillator reference clock

? Operating frequency

¡ª 50MHz equivalent to 25MHz Bus Speed

? Internal 2.5V Regulator

¡ª Input voltage range from 3.135V to 5.5V

¡ª Low power mode capability

¡ª Includes low voltage reset (LVR) circuitry

¡ª Includes low voltage interrupt (LVI) circuitry

? 112-Pin LQFP or 80-Pin QFP or 64-Pin QFN package

¡ª Up to 90 I/O lines with 5V input and drive capability (112 pin package)

¡ª Up to two dedicated 5V input only lines (IRQ and XIRQ)

¡ª Sixteen 3.3V/5V A/D converter inputs

? Development Support.

¡ª Single-wire background debugTM mode

¡ª On-chip hardware breakpoints

¡ª Enhanced debug features