scf5249 Freescale Semiconductor, Inc, scf5249 Datasheet - Page 4

• Manufacturer Part Number: scf5249
• Description: Scf5249 Integrated Coldfire
• Manufacturer: Freescale Semiconductor, Inc

SCF5249 Feature Details
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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
— Clock-doubled to match microprocessor core speed
— 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
Audio Interfaces
— IEC958 input and output
— Four serial Philips IIS/Sony EIAJ interfaces
Enhanced Multiply-accumulator Unit
dedicated to the UART module (External requests are not supported.)
allow lock with an incoming IEC958 or serial audio signal
– One with input and output, one with output only, two with input only (Three inputs, two
– Master and Slave operation
outputs)
SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3
Freescale Semiconductor