MCF51QE128中文资料飞思卡尔数据手册PDF规格书

• 32-Bit Version 1 ColdFire® Central Processor Unit (CPU)

– Up to 50.33-MHz ColdFire V1 CPU above 2.4V, 40-MHz CPU above 2.1V, and 20-MHz CPU above 1.8V, across temperature range

– Provides 0.94 Dhrystone 2.1 MIPS per MHz performance when running from internal RAM(0.76 DMIPS/MHz from flash)

– Implements Instruction Set Revision C (ISA_C)

– Support for up to 30 peripheral interrupt requests and seven software interrupts

• On-Chip Memory

– Flash read/program/erase over full operating voltage and temperature

– Random-access memory (RAM)

– Security circuitry to prevent unauthorized access to RAM and flash contents

• Power-Saving Modes

– Two low power stop modes; reduced power wait mode

– Peripheral clock enable register can disable clocks to unused modules, reducing currents; allows clocks to remain enabled to specific peripherals in stop3 mode

– Very low power external oscillator can be used in stop3 mode to provide accurate clock to active peripherals

– Very low power real time counter for use in run, wait, and stop modes with internal and external clock sources

– 6 μs typical wake up time from stop modes

• Clock Source Options

– Oscillator (XOSC) — Loop-control Pierce oscillator;

Crystal or ceramic resonator range of 31.25 kHz to 38.4 kHz or 1 MHz to 16 MHz

– Internal Clock Source (ICS) — FLL controlled by internal or external reference; precision trimming of internal reference allows 0.2 resolution and 2 deviation; supports CPU freq. from 2 to 50.33 MHz

• System Protection

– Watchdog computer operating properly (COP) reset with option to run from dedicated 1-kHz internal clock source or bus clock

– Low-voltage detection with reset or interrupt; selectable trip points

– Illegal opcode and illegal address detection with programmable reset or exception response

– Flash block protection

• Development Support

– Single-wire background debug interface

– 4 PC plus 2 address (optional data) breakpoint registers with programmable 1- or 2-level trigger response

– 64-entry processor status and debug data trace buffer with programmable start/stop conditions

• ADC — 24-channel, 12-bit resolution; 2.5 μs conversion time; automatic compare function; 1.7 mV/°C temperature sensor; internal bandgap reference channel; operation in stop3; fully functional from 3.6V to 1.8V

• ACMPx — Two analog comparators with selectable interrupt on rising, falling, or either edge of comparator output; compare option to fixed internal bandgap reference voltage; outputs can be optionally routed to TPM module; operation in stop3

• SCIx — Two SCIs with full duplex non-return to zero (NRZ); LIN master extended break generation; LIN slave extended break detection; wake up on active edge

• SPIx— Two serial peripheral interfaces with Full-duplex or single-wire bidirectional; Double-buffered transmit and receive; MSB-first or LSB-first shifting

• IICx — Two IICs with; Up to 100 kbps with maximum bus loading; Multi-master operation; Programmable slave address; Interrupt driven byte-by-byte data transfer; supports broadcast mode and 10 bit addressing

• TPMx — One 6-channel and two 3-channel; Selectable input capture, output compare, or buffered edge- or center-aligned PWMs on each channel

• RTC — 8-bit modulus counter with binary or decimal based prescaler; External clock source for precise time base, time-of-day, calendar or task scheduling functions; Free running on-chip low power oscillator (1 kHz) for cyclic wake-up without external components

• Input/Output

– 70 GPIOs and 1 input-only and 1 output-only pin

– 16 KBI interrupts with selectable polarity

– Hysteresis and configurable pull-up device on all input pins; Configurable slew rate and drive strength on all output pins.

– SET/CLR registers on 16 pins (PTC and PTE)

– 16 bits of Rapid GPIO connected to the CPU’s high-speed local bus with set, clear, and toggle functionality