DSP56156 Motorola Inc, DSP56156 Datasheet - Page 2
DSP56156
Manufacturer Part Number
DSP56156
Description
16-bit Digital Signal Processor
Manufacturer
Motorola Inc
Datasheet
1.DSP56156.pdf
(76 pages)
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Introduction
DSP56156 Features
DSP56156 Features
Digital Signal Processing Core
Memory
Peripheral and Support Circuits
• Efficient, object code compatible, 16-bit 56100-Family DSP engine
• On-chip Harvard architecture permitting simultaneous accesses to program
• 2048
• 2048
• External memory expansion with 16-bit address and data buses
• Bootstrap loading from external data bus, Host Interface, or
• Byte-wide Host Interface (HI) with Direct Memory Access support
• Two Synchronous Serial Interfaces (SSI) to communicate with codecs and
• 16-bit Timer/Event Counter also generates and measures digital waveforms
• On-chip sigma-delta voice band Codec:
and memories
(or 12 k 16-bit on-chip program ROM on the DSP56156ROM)
Synchronous Serial Interface
synchronous serial devices
— Up to 30 Million Instructions Per Second (MIPS) – 33 ns instruction cycle at 60 MHz
— Up to 180 Million Operations Per Second (MOPS) at 60 MHz
— Highly parallel instruction set with unique DSP addressing modes
— Two 40-bit accumulators including extension byte
— Parallel 16 16-bit multiply-accumulate in 1 instruction cycle (2 clock cycles)
— Double precision 32 32-bit multiply with 72-bit result in 6 instruction cycles
— Least Mean Square (LMS) adaptive loop filter in 2 instructions
— 40-bit Addition/Subtraction in 1 instruction cycle
— Fractional and integer arithmetic with support for multiprecision arithmetic
— Hardware support for block-floating point FFT
— Hardware-nested DO loops including infinite loops
— Zero-overhead fast interrupts (2 instruction cycles)
— Three 16-bit internal data buses and three 16-bit internal address buses for
— Built in µ-law and A-law compression/expansion
— Up to 32 software-selectable time slots in network mode
— Sampling clock rates between 100 kHz and 3 MHz
— Four software-programmable decimation/interpolation ratios
— Internal voltage reference (
— No external components required
16-bit on-chip program RAM and 64
16-bit on-chip data RAM
maximum information transfer on-chip
Freescale Semiconductor, Inc.
For More Information On This Product,
DSP56156 Data Sheet
Go to: www.freescale.com
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of positive power supply)
16-bit bootstrap ROM
MOTOROLA
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