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发信人: whynot (精诚所至,金石为开), 信区: Electronics
标 题: 谈谈其他DSP(1)Motorola
发信站: 哈工大紫丁香 (Sat Sep 18 19:02:17 1999), 转信
其他公司的DSP也是各有特色的嘛,
Motorola 的24位运算宽度使你不在为精度不够而烦恼
DSP56001:
主频: 20.5, 27, or 33 MHz
位数: 24-bit fixed point DSP
24 bit data bus, 16 bit address bus,
56 bit accumulators (2)
外设: host interface port,
serial ports (2),
general purpose I/O pins, timer.
内存: Harvard architecture.
512 words program RAM, 32 words bootstrap ROM,
512 words data RAM, 512 words data ROM on chip.
封装: PGA, CQFP or PQFP packaging.
DSP56000:
Mask-programmed version of DSP56001, same peripherals and
data memories, 3.75k words program ROM on chip.
DSP56002:
特点:--- based on new 24-bit DSP56k core
--- a superset of the DSP56001 architecture
--- with On-Chip Emulation (OnCE) debug port,
--- clock PLL and improved bus arbitration
--- four cycle double precision multiply
--- support for block floating point
--- Same memory as in DSP56001,
except for 64 words bootstrap ROM.
主频: 40MHz
外设: Host interface port
serial ports (2),
general purpose I/O pins,
programmable 24-bit timer,
non-maskable interrupt
封装: PGA and CQFP packaging.
DSP56L002:
Low-power version of the DSP56002 offering identical
performance as the DSP56002 but at 3.3V.
封装: PQFP.
DSP56004:
特点: modular DSP, same 24-bit DSP56k core as in DSP56002.
Targeted to consumer digital audio applications
外设: On-Chip Emulation (OnCE) debug port
clock PLL, serial host interface (I2C and SPI)
four general purpose I/O pins,
two stereo serial audio receivers (I2S/Sony)
three stereo serial audio transmitters (I2S/Sony)
external SRAM/DRAM memory interface with 8-bit
data bus.
主频: 40 MHz (5V supply) in 80-pin QFP package.
DSP96002:
核: IEEE format floating point DSP;
two complete 32 bit data and address buses;
Harvard architecture.
内存:1k words program RAM,
64 words bootstrap ROM,
1k words data RAM,
1k words data ROM,
主频: Available in 33 MHz or 40 MHz
封装: 223-pin PGA packaging.
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☆ 来源:.哈工大紫丁香 bbs.hit.edu.cn.[FROM: whynot.bbs@bbs.sjtu.]
发信人: whynot (精诚所至,金石为开), 信区: Electronics
标 题: 谈谈其他DSP(2) Motorola
发信站: 哈工大紫丁香 (Sat Sep 18 19:03:17 1999), 转信
DSP56009
应用: suitable for digital audio decompression functions, such as Dolby AC-3; Surround, MPEG1 Layer 2, and Digital Theater Systems (DTS),
特征:
Digital Signal Processing Core
- 40MIPS; 25 ns instruction cycle at 80 MHz
- Two 56-bit accumulators including extension byte
- Parallel 24 x 24-bit multiply-accumulate in 1 instruction
cycle (2 clock cycles)
- Double precision 48 x 48-bit multiply with 96-bit result in 6 instruction cycles
- 56-bit addition/subtraction in one instruction cycle
- Fractional and integer arithmetic with support for multi-precision arithmetic
- Hardware support for block-floating point Fast Fourier Transforms (FFT)
- Hardware nested DO loops
- Zero-overhead fast interrupts (2 instruction cycles)
- PLL-based clocking with a wide range of frequency multiplications (1 to 4096) and power saving clock divider
- Four 24-bit internal data buses and three 16-bit internal address buses for simultaneous accesses to one program and two data memories
Memory
10240 x 24-bit on-chip Program ROM*
4608 x 24-bit on-chip X-data RAM and 3072 x 24-bit on-chip X-data ROM*
4352 x 24-bit on-chip Y-data RAM and 1792 x 24-bit on-chip Y-data ROM*
512 x 24-bit on-chip Program RAM and 64 x 24-bit bootstrap ROM
Up to 2304 x 24-bit from X and Y data RAM can be switched to Program RAM giving a total of 2816 x 24-bits of Program RAM
Bootstrap loading from Serial Host Interface or External Memory Interface
Peripheral and Support Circuits
---- Serial Audio Interface (SAI) includes two receivers and three transmitters, master or slave capability, and implementation of I2S, Sony, and Matshushita audio protocols;
---- two sets of SAI interrupt vectors
Serial Host Interface (SHI) features single master capability, 10-word receive FIFO, and support for 8-, 16- and 24-bit words
---- External Memory Interface (EMI), implemented as a peripheral supporting
---- Four dedicated, independent, programmable General Purpose I/O (GPIO) lines
80-pin plastic Quad Flat Pack surface-mount package; 14 x 14 x 2.45 mm; 0.65 mm lead pitch
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※ 来源:·饮水思源站 bbs.sjtu.edu.cn·[FROM: www-post@bbs]
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☆ 来源:.哈工大紫丁香 bbs.hit.edu.cn.[FROM: whynot.bbs@bbs.sjtu.]
发信人: whynot (精诚所至,金石为开), 信区: Electronics
标 题: 谈谈其他DSP(3)AT&T (Lucent)
发信站: 哈工大紫丁香 (Sat Sep 18 19:04:22 1999), 转信
AT&T:
DSP 16 FAMILY:
DSP16A : fixed point
---- a 25ns cycle time
---- separate on-chip 16-bit program- and data buses
---- 12k x 16-bit program ROM
a 2k x 16-bit data-RAM
DSP 32C/3210:
DSP32C, 32-bit floating point
---- 40-bits accumulator
---- 16/24-bit fixed point.
---- The 32C has
three 512 x 32-bit RAM:s
---- Serial and parallell I/O, timer,DMA-controller.
---- 50 and 66MHz.
DSP3210/DSP3207: 32-bit floating point
---- four 40-bit floating-point accumulators
24 general purpose 32-bit fixed point registers.
---- Single 32-bit (4G-byte) linear memory space
Support for byte, 16-bit word, and 32-bit word
accesses.
Big/little endian interface.
---- C-like assembly language
---- Two 1k x 32-bit RAMs and a 256 x 32-bit boot ROM.
---- Serial I/O, timer, DMA-controller.
---- DSP3210 55MHz/5V and 66MHz/5V.
DSP3207 55MHz/5V and 66MHz/5V and 40MHz/3V.
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※ 来源:·饮水思源站 bbs.sjtu.edu.cn·[FROM: www-post@bbs]
--
☆ 来源:.哈工大紫丁香 bbs.hit.edu.cn.[FROM: whynot.bbs@bbs.sjtu.]
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