mcf5249pb Freescale Semiconductor, Inc, mcf5249pb Datasheet - Page 4

• Manufacturer Part Number: mcf5249pb
• Description: Mcf5249 Integrated Coldfire Microprocessor
• Manufacturer: Freescale Semiconductor, Inc

MCF5249 Features: Details
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The primary features of the MCF5249 integrated processor include the following:
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ColdFire V2 Processor Core operating at 140 MHz
— Clock-doubled Version 2 microprocessor core
— 32-bit internal data bus, 16 bit external data bus
— 16 user-visible, 32-bit general-purpose registers
— Supervisor/user modes for system protection
— Vector base register to relocate exception-vector table
— Optimized for high-level language constructs
DMA controller
— Four fully programmable channels: Two dedicated to the audio interface module and two
— Supports dual- and single-address transfers with 32-bit data capability
— Two address pointers that can increment or remain constant
— 16-/24-bit transfer counter
— Operand packing and unpacking support
— Auto-alignment transfers supported for efficient block movement
— Supports bursting and cycle stealing
— All channels support memory to memory transfers
— Interrupt capability
— Provides two clock cycle internal access
— Single-cycle multiply-accumulate operations for 32 x 32 bit and 16 x 16 bit operands
— Support for signed, unsigned, integer, and fixed-point fractional input operands
— Four 48-bit accumulators to allow the use of a 40-bit product
— The addition of 8 extension bits to increase the dynamic number range
— Fast signed and unsigned integer multiplies
8-Kbyte Direct Mapped instruction cache
— Clocked core clock frequency
— Flush capability
— Non-blocking cache provides fast access to critical code and data
96-Kbyte SRAM
— Provides one-cycle access to critical code and data
— Split into two banks, SRAM0 (32K), and SRAM1 (64K)
— DMA requests to/from internal SRAM1 supported
Crystal Trim
— The XTRIM output can be used to trim an external crystal oscillator circuit which would allow
Enhanced Multiply-accumulator Unit
MCF5249 Features: Details
dedicated to the UART module (External requests are not supported.)
lock with an incoming IEC958 or serial audio signal
MCF5249 Integrated ColdFire® Microprocessor Product Brief
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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