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SCF5249 датащи(PDF) 4 Page - Freescale Semiconductor, Inc |
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SCF5249 датащи(HTML) 4 Page - Freescale Semiconductor, Inc |
4 / 56 page SCF5249 Integrated ColdFire® Microprocessor Data Sheet, Rev. 3 SCF5249 Feature Details Freescale Semiconductor 4 • DMA controller — Four fully programmable channels: Two dedicated to the audio interface module and two dedicated to the UART module (External requests are not supported.) — 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 • Enhanced Multiply-accumulator Unit — 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 allow lock with an incoming IEC958 or serial audio signal • Audio Interfaces — IEC958 input and output — Four serial Philips IIS/Sony EIAJ interfaces – One with input and output, one with output only, two with input only (Three inputs, two outputs) – Master and Slave operation |
Аналогичный номер детали - SCF5249 |
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Аналогичное описание - SCF5249 |
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