dsp56824 Freescale Semiconductor, Inc, dsp56824 Datasheet - Page 5

• Manufacturer Part Number: dsp56824
• Description: 16-bit Digital Signal Processor
• Manufacturer: Freescale Semiconductor, Inc

1.2 DSP56824 Features
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1.2.2
1.2.3
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Efficient 16-bit DSP56800 family DSP engine
As many as 35 Million Instructions Per Second (MIPS) at 70 MHz
Single-cycle 16
Two 36-bit accumulators including extension bits
16-bit bidirectional barrel shifter
Parallel instruction set with unique DSP addressing modes
Hardware DO and REP loops
Three internal address buses and one external address bus
Four internal data buses and one external data bus
Instruction set supports both DSP and controller functions
Controller style addressing modes and instructions for compact code
Efficient C Compiler and local variable support
Software subroutine and interrupt stack with unlimited depth
On-chip Harvard architecture permits as many as three simultaneous accesses to program and data
memory
On-chip memory
— 32 K
— 128
— 3.5 K
— 2 K
Off-chip memory expansion capabilities
— As much as 64 K
— As much as 64 K
— External memory expansion port programmable for 1 to 15 wait states
Programs can run out of X data RAM
External Memory Interface (Port A)
Sixteen dedicated GPIO pins (eight pins programmable as interrupts)
Serial Peripheral Interface (SPI) support: Two configurable four-pin ports (SPI0 and SPI1) (or eight
additional GPIO lines)
— Supports LCD drivers, A/D subsystems, and MCU systems
— Supports inter-processor communications in a multiple master system
— Supports demand-driven master or slave devices with high data rates
Digital Signal Processing Core
Memory
Peripheral Circuits
16 X data ROM
16 Program RAM
16 Program ROM
16 X RAM usable for both data and programs
16-bit parallel Multiplier-Accumulator (MAC)
Freescale Semiconductor, Inc.
For More Information On This Product,
16 X data memory
16 program memory
DSP56824 Technical Data
Go to: www.freescale.com
DSP56824 Features
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