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- Path: sparky!uunet!uunet.ca!geac!censor!isgtec!ken
- From: ken@isgtec.com (Ken Newman)
- Newsgroups: comp.sys.atari.st
- Subject: Re: So what does this mean to us ?
- Message-ID: <3914@isgtec.isgtec.com>
- Date: 25 Dec 92 01:34:07 GMT
- References: <0fq24bj@rpi.edu> <1h4ug5INN9r8@life.ai.mit.edu> <11508@uqcspe.cs.uq.oz.au>
- Sender: root@isgtec.com
- Organization: ISG Technologies Inc., Mississauga Ontario
- Lines: 56
-
- In article <11508@uqcspe.cs.uq.oz.au> warwick@cs.uq.oz.au writes:
- > The DSP is a sound processor, making the Falcon very attractive to
- > musicians.
-
- Wrong. Please don't state things like this that you obviously have
- no clue about. The DSP56001 IS NOT A SOUND CHIP!!!!!
-
- This is from the Motorola Technical Data book on the DSP56001 (you
- should read this before you talk about the chip. Maybe this should
- be in a FAQ list? Is there a FAQ list?)
-
- -------------------
- DSP56001 24-Bit General Purpose Digital Signal Processor
-
- The DSP56001 is a member of Motorola's family of HCMOS, low-power,
- general purpose Digital Signal Processors. The DSP56001 features 512
- words of full speed, on-chip program RAM (PRAM) memory, two 256-word
- data RAMs, two preprogrammed data ROMs, and special on-chip bootstrap
- hardware to permit convenient loading of user programs into the program
- RAM. It is an off-the-shelf part since the program memory is user
- programmable. The core of the processor consists of three execution
- units operating in parallel - the data ALU, the address generation
- unit, and the program controller. The DSP56001 has MCU-style on-chip
- peripherals, program and data memory, as well as a memory expansion
- port. The MPU-style programming model and instruction set make writing
- efficient, compact code, straightforward.
-
- The high throughput of the DSP56001 makes it well-suited for
- communication, high-speed control, numeric processing, computer
- and audio applications.
- -------------------
-
- The databook is huge, 70-80 pages, so I'm not going to type much
- more, but the following is interesting:
-
-
- -------------------
- Speed: At 13.5 million instructions per second (MIPS) with a
- 27 MHz clock, the DSP56001 can execute a 1024 point
- complex Fast Fourier Transform in 2.45 milliseconds.
- Precision: The data paths are 24 bits wide thereby providing 144 dB
- of dynamic range; intermediate results held in the
- 56-bit accumulators can range over 336 dB.
- Parallelism: The data ALU, address arithmetic units, and program
- controller operate in parallel so that an instruction
- prefetch, a 24x24-bit multiplication, a 56-bit addition,
- two data moves, and two address pointer updates using
- one of three types of arithmetic (linear, modulo, or
- reverse carry) can be executed in a single instruction
- cycle.
- -------------------
-
- - kn
- --
-
- ken@isgtec.com [ ...!uunet.ca!isgtec!ken ] Ken Newman
-