Introduction

Overview

The MC9S12E-Family is a 112/80 pin low cost general purpose MCU family. All members of the MC9S12E-Family are comprised of standard on-chip peripherals including a 16-bit central processing unit (HCS12 CPU), up to 256K bytes of Flash EEPROM, up to 16K 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 MC9S12E-Family 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

– HCS12 CPU

i. Upward compatible with M68HC11 instruction set

ii. Interrupt stacking and programmer’s model identical to M68HC11

iii. Instruction queue

iv. Enhanced indexed addressing

– Module Mapping Control (MMC)

– Interrupt Control (INT)

– Background Debug Module (BDM)

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

– Multiplexed External Bus Interface (MEBI)

? Wake-Up interrupt inputs

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

? Memory options

– 32K, 64K, 128K or 256K Byte Flash EEPROM

– 2K, 4K, 8K or 16K Byte RAM

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

– 8-bit resolution

? Analog-to-Digital Converter (ADC)

– 16-channel module with 10-bit resolution

– External conversion trigger capability

? Three 4-channel Timers (TIM)

– Programmable input capture or output compare channels

– Simple PWM mode

– Counter Modulo Reset

– External Event Counting

– Gated Time Accumulation

? 6 PWM channels (PWM)

– Programmable period and duty cycle

– 8-bit 6-channel or 16-bit 3-channel

– Separate control for each pulse width and duty cycle

– Center-aligned or left-aligned outputs

– Programmable clock select logic with a wide range of frequencies

– Fast emergency shutdown input

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

– Three independent 15-bit counters with synchronous mode

– Complementary channel operation

– Edge and center aligned PWM signals

– Programmable dead time insertion

– Integral reload rates from 1 to 16

– Four fault protection shut down input pins

– Three current sense input pins

? Serial interfaces

– Three asynchronous serial communication interfaces (SCI)

– Synchronous serial peripheral interface (SPI)

– Inter-IC Bus (IIC)

? Clock and Reset Generator (CRG)

– Windowed COP watchdog

– Real Time interrupt

– Clock Monitor

– Pierce or low current Colpitts oscillator

– Phase-locked loop clock frequency multiplier

– Self Clock mode in absence of external clock

– Low power 0.5 to 16Mhz crystal oscillator reference clock

? Operating frequency

– 50MHz equivalent to 25MHz Bus Speed

? Internal 2.5V Regulator

– Input voltage range from 3.135V to 5.5V

– Low power mode capability

– Includes low voltage reset (LVR) circuitry

– Includes low voltage interrupt (LVI) circuitry

? 112-Pin LQFP or 80-Pin QFP package

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

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

– Sixteen 3.3V/5V A/D converter inputs

? Development Support.

– Single-wire background debugTM mode

– On-chip hardware breakpoints

– Enhanced debug features