Multimedia applications of microprocessor with embedded DRAM

被引:0
作者
Nunomura, Y [1 ]
Shimizu, T [1 ]
Saitoh, K [1 ]
Tsuchihashi, K [1 ]
机构
[1] Mitsubishi Elect Co, Syst LSI Lab, Itami, Hyogo 664, Japan
来源
PROCEEDINGS OF THE 1998 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING, VOLS 1-6 | 1998年
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D O I
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中图分类号
O42 [声学];
学科分类号
070206 ; 082403 ;
摘要
The M32R/D is a 32-bit microprocessor with large-capacity on-chip DRAM. It consists of a 32-bit RISC CPU, a 32-bit x 16-bit multiply and accumulator (MAC), either 1-Mbyte or 2-Mbyte DRAM, 4-Kbyte cache memory, and a memory controller. The CPU, DRAM, and cache memory am connected via a 128-bit 66.6 MHz internal bus yielding high performance and low power dissipation. The chip is capable of coping with a wide range of applications and thus provides system designer with great flexibility. For instance, a portable multimedia system can be realized by only three chips: an M32R/D chip, an I/O ASIC chip, and programming ROM. This means that a total system solution can be achieved at a lower cost with higher performance. Personal digital assistants (PDAs) and digital still cameras are such examples.
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页码:3157 / 3160
页数:4
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