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  • Author Author: bheemarao
  • Date Created: 4 Nov 2009 4:57 AM Date Created
  • Last Updated Last Updated: 7 Oct 2021 1:06 AM
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Embedded Processing and DSP

Embedded Processing and DSP

October 2009

imageThe ADSP-2146x  fourth-generation SHARCRegistered Processors offer a high-performance core, plus application- and  audio-specific peripherals, making them ideal for professional and automotive  audio applications. Their single-instruction, multiple-data (SIMD) core supports  32-bit fixed-point and 32-/40-bit floating-point arithmetic formats—performing  at up to 2.7 GFLOPS and 900 MMACS with a 450-MHz clock. The DMA controllers  support 67 channels, each of which can transfer 32-bit serial data at peripheral  clock speed without slowing processor execution. The digital audio interface  (DAI) includes eight serial ports, four precision clock generators, an input  data port, an S/PDIF transceiver, and a flexible signal-routing unit (SRU). The  digital peripheral interface (DPI) includes two SPI ports, two timers, a UART, a  DTCP cipher, and a 2-wire interface. Two 8-bit, bidirectionally programmable  link ports can connect to the link ports of other DSPs or peripherals. 5 Mbits  of RAM and 4 Mbits of ROM are included on-chip. The following table compares the  various models.

Model/Parameter
Frequency (MHz)
ROM (bits)
Digital Content            Transmission Protocol (DTCP)
Media Local Bus            (MLB)
Automotive            Applications
Temperature Range (°C)
ADSP-21462W
400
N/A
Yes
Yes
Yes
–40 to +85
ADSP-21465W
400
4M
Yes
Yes
Yes
–40 to +85
ADSP-21467
450
4M
No
No
No
0 to +70
ADSP-21469
450
N/A
No
No
No
0 to +70
ADSP-21469W
400
N/A
No
Yes
Yes
–40 to +85

 

 

http://www.analog.com/library/analogDialogue/pre_release_products.html#dsp

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