MCF51JM128_08 Datasheet, PDF (7/50 Pages) Freescale Semiconductor, Inc – MCF51JM128 ColdFire Microcontroller

1.3.1 Feature List
MCF51JM128 Family Configurations
• 32-Bit Version 1 ColdFire® Central Processor Unit (CPU)
— Up to 50.33 MHz at 2.7 V – 5.5 V
— Performance (Dhrystone 2.1):
– 0.94 Dhrystone 2.1 MIPS per MHz when running from internal RAM
– 0.76 Dhrystone 2.1 MIPS per MHz when running from flash
— Implements Instruction Set Revision C (ISA_C)
— Supports up to 30 peripheral interrupt requests and seven software interrupts
• On-chip memory
— Up to 128 KBytes Flash memory with read/program/erase over full operating voltage and temperature range
— Up to 16 KBytes static random access memory (RAM)
— Security circuitry to prevent unauthorized access to RAM and flash contents
• Power-saving modes
— Two low-power stop plus wait modes
— Peripheral clock enable register can disable clocks to unused modules, thereby reducing currents; this behavior
allows clocks to remain enabled to specific perhipherals in Stop3 mode
— Very lower power real-time counter for use in run, wait, and stop modes with internal and external clock sources
• Four 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
— FLL/PLL controlled by internal or external reference
— Trimmable internal reference allows 0.2% resolution and 2% deviation
• System protection features
— 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
• Debug support
— Single-wire Background debug interface
— 4 Program Counters plus two 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
• Universal Serial Bus (USB) On-The-Go dual-role controller
— Full-speed USB device controller
– Fully compliant with USB specification 1.1 and 2.0
– 16 bidirectional endpoints, with double buffering to provide the maximum throughput
– Supports control, bulk, interrupt, and isochronous endpoints
– Supports bus-powered capability with low-power consumption
— Full-speed / low-speed host controller
– Host mode allows control, bulk, interrupt, and isochronous transfers
— OTG protocol logic
— On-chip USB transceiver
— On-chip 3.3 V USB regulator and pull-up resistors save system cost
MCF51JM128 ColdFire Microcontroller, Rev. 2
Freescale Semiconductor
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