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公开(公告)号:EP0315139B1
公开(公告)日:1998-03-04
申请号:EP88118235.6
申请日:1988-11-02
发明人: Noguchi, Kouki , Tsuchiya, Fumio , Tsukamoto, Takashi , Masumura, Shigeki , Nakamura, Hideo , Baba, Shiro , Hagiwara, Yoshimune
CPC分类号: G06F9/30178 , G06F9/261 , G06F9/30145 , G06F9/30156
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公开(公告)号:EP0315139A3
公开(公告)日:1991-03-20
申请号:EP88118235.6
申请日:1988-11-02
发明人: Noguchi, Kouki , Tsuchiya, Fumio , Tsukamoto, Takashi , Masumura, Shigeki , Nakamura, Hideo , Baba, Shiro , Hagiwara, Yoshimune
CPC分类号: G06F9/30178 , G06F9/261 , G06F9/30145 , G06F9/30156
摘要: In a microprocessor, a minimum instruction code length is set to a predetermined number of bits (e.g. one byte) length, an instruction set which can expand the instruction code length at a unit of the predetermined number of bits is used, an operand addressing mode and a type of operation for an operand are designated by separate predetermined number of code bits which are coded in a common coding scheme so that an instruction decoder is shared by those codes.
摘要翻译: 在微处理器中,最小指令代码长度被设置为预定数量的位(例如一个字节)长度,使用可以以预定位数为单位扩展指令代码长度的指令集,操作数寻址模式 并且通过以公共编码方案编码的单独预定数量的码位来指定操作数的操作类型,使得指令解码器被这些码共享。
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公开(公告)号:EP0597307A1
公开(公告)日:1994-05-18
申请号:EP93117256.3
申请日:1993-10-25
发明人: Kawasaki, Shumpei , Fukada, Kaoru , Watabe, Mitsuru , Noguchi, Kouki , Matsubara, Kiyoshi , Mochizuki, Isamu , Suzukawa, Kazufumi , Masumura, Shigeki , Akao, Yasushi , Sakakibara, Eiji
CPC分类号: G06F15/7832 , G06F13/4239 , G06F15/786
摘要: A microcomputer that is easy to use and connected direct to such memories as dynamic and static RAM's and to other peripheral circuits. The microcomputer has strobe signal output terminals CASH * , CASL * and RAS * for direct connection to a dynamic RAM, and chip select signal output terminals CSO * through CS6 * for outputting a chip select signal in parallel with the output from the strobe signal output terminals. The microcomputer further includes address output terminals for outputting a non-multiplexed or multiplexed address signal as needed, and data I/O terminals for selectively outputting the address signal to comply with a multiple-bus interface scheme.
摘要翻译: 一种易于使用和直接连接到诸如动态和静态RAM以及其他外围电路之类的存储器的微型计算机。 微型计算机具有选通信号输出端子CASH *,CASL *和RAS *,用于直接连接到动态RAM,以及芯片选择信号输出端子CS0 *至CS6 *,用于与选通信号输出的输出并行输出芯片选择信号 终端。 微型计算机还包括用于根据需要输出未复用或复用的地址信号的地址输出端子和用于选择性地输出地址信号以符合多总线接口方案的数据I / O端子。
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公开(公告)号:EP0315139A2
公开(公告)日:1989-05-10
申请号:EP88118235.6
申请日:1988-11-02
发明人: Noguchi, Kouki , Tsuchiya, Fumio , Tsukamoto, Takashi , Masumura, Shigeki , Nakamura, Hideo , Baba, Shiro , Hagiwara, Yoshimune
CPC分类号: G06F9/30178 , G06F9/261 , G06F9/30145 , G06F9/30156
摘要: In a microprocessor, a minimum instruction code length is set to a predetermined number of bits (e.g. one byte) length, an instruction set which can expand the instruction code length at a unit of the predetermined number of bits is used, an operand addressing mode and a type of operation for an operand are designated by separate predetermined number of code bits which are coded in a common coding scheme so that an instruction decoder is shared by those codes.
摘要翻译: 在微处理器中,使用最小指令码长度为预定位数(例如一个字节)长度,可以以预定位数的单位扩展指令码长度的指令集,操作数寻址模式 并且操作数的操作的类型由以公共编码方案编码的单独的预定数量的码位指定,使得指令解码器被这些代码共享。
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公开(公告)号:EP0597307B1
公开(公告)日:1999-04-28
申请号:EP93117256.3
申请日:1993-10-25
发明人: Kawasaki, Shumpei , Fukada, Kaoru , Watabe, Mitsuru , Noguchi, Kouki , Matsubara, Kiyoshi , Mochizuki, Isamu , Suzukawa, Kazufumi , Masumura, Shigeki , Akao, Yasushi , Sakakibara, Eiji
CPC分类号: G06F15/7832 , G06F13/4239 , G06F15/786
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公开(公告)号:EP0718779A1
公开(公告)日:1996-06-26
申请号:EP96102998.0
申请日:1994-08-10
发明人: Kawasaki, Shumpei , Akao, Yasushi , Noguchi, Kouki , Hasegawa, Atsushi , Ohsuga, Hiroshi , Kurakazu, Keiichi , Matsubara, Kiyoshi , Hayakawa, Akio , Ito, Yoshitaka
CPC分类号: G06F9/3001 , G06F12/0893 , G06F13/36 , G06F13/405 , G06F15/7817 , H04W28/08 , H04W52/0216 , H04W88/02 , Y02D10/12 , Y02D10/13 , Y02D10/14 , Y02D10/151 , Y02D70/142 , Y02D70/26
摘要: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.
摘要翻译: 一种单片微计算机,包括:具有中央处理单元和与其连接的高速缓冲存储器的第一总线; 具有动态存储器访问控制电路和与其连接的外部总线接口的第二总线; 用于选择性地连接第一总线和第二总线的断开控制器; 第三总线具有与其连接的外围模块,并且具有比第一和第二总线的总线周期更低的总线周期; 以及用于进行数据传送和第二总线与第三总线之间的同步的总线状态控制器。 单片机具有三条分开的内部总线,以减少信号传输路径上的负载能力,从而可以高速实现信号传输。 此外,隔离所需要的没有运行速度的外围模块,从而可以降低功耗。
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公开(公告)号:EP0646873A2
公开(公告)日:1995-04-05
申请号:EP94112520.5
申请日:1994-08-10
发明人: Kawasaki, Shumpei , Akao, Yasushi , Noguchi, Kouki , Hasegawa, Atsushi , Ohsuga, Hiroshi , Kurakazu, Keiichi , Matsubara, Kiyoshi , Hayakawa, Akio , Ito, Yoshitaka
CPC分类号: G06F9/3001 , G06F12/0893 , G06F13/36 , G06F13/405 , G06F15/7817 , H04W28/08 , H04W52/0216 , H04W88/02 , Y02D10/12 , Y02D10/13 , Y02D10/14 , Y02D10/151 , Y02D70/142 , Y02D70/26
摘要: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.
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公开(公告)号:EP0525375A2
公开(公告)日:1993-02-03
申请号:EP92110517.7
申请日:1992-06-22
发明人: Kawasaki, Shumpei , Sakakibara, Eiji , Fukada, Kaoru , Yamazaki, Takanaga , Akao, Yasushi , Baba, Shiro , Kihara, Toshimasa , Kurakazu, Keiichi , Tsukamoto, Takashi , Masumura, Shigeki , Tawara, Yasuhiro , Kashiwagi, Yugo , Fujita, Shuya , Ishida, Katsuhiko , Sawa, Noriko , Asano, Yoichi , Chaki, Hideaki , Sugawara, Tadahiko , Kainaga, Masahiro , Noguchi, Kouki , Watabe, Mitsuru
IPC分类号: G06F9/38
CPC分类号: G06F7/535 , G06F9/30 , G06F9/3001 , G06F9/30112 , G06F9/3013 , G06F9/30145 , G06F9/30149 , G06F9/3016 , G06F9/30163 , G06F9/30167 , G06F9/30181 , G06F9/30189 , G06F9/322 , G06F9/324 , G06F9/3557 , G06F9/3802 , G06F9/3814 , G06F9/3836 , G06F9/3857 , G06F9/3859 , G06F9/3867 , G06F2207/5352
摘要: RISC-type microprocessor has a fixed struction lenght of 2 n bits, whilst the data use size is 2 m bits,where m is greater than or equal to n.
摘要翻译: RISC型微处理器的固定结构长度为2 n位,数据使用大小为2 m,m大于或等于n。
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公开(公告)号:EP0525375A3
公开(公告)日:1993-04-21
申请号:EP92110517.7
申请日:1992-06-22
发明人: Kawasaki, Shumpei , Sakakibara, Eiji , Fukada, Kaoru , Yamazaki, Takanaga , Akao, Yasushi , Baba, Shiro , Kihara, Toshimasa , Kurakazu, Keiichi , Tsukamoto, Takashi , Masumura, Shigeki , Tawara, Yasuhiro , Kashiwagi, Yugo , Fujita, Shuya , Ishida, Katsuhiko , Sawa, Noriko , Asano, Yoichi , Chaki, Hideaki , Sugawara, Tadahiko , Kainaga, Masahiro , Noguchi, Kouki , Watabe, Mitsuru
IPC分类号: G06F9/38
CPC分类号: G06F7/535 , G06F9/30 , G06F9/3001 , G06F9/30112 , G06F9/3013 , G06F9/30145 , G06F9/30149 , G06F9/3016 , G06F9/30163 , G06F9/30167 , G06F9/30181 , G06F9/30189 , G06F9/322 , G06F9/324 , G06F9/3557 , G06F9/3802 , G06F9/3814 , G06F9/3836 , G06F9/3857 , G06F9/3859 , G06F9/3867 , G06F2207/5352
摘要: RISC-type microprocessor has a fixed struction lenght of 2 n bits, whilst the data use size is 2 m bits,where m is greater than or equal to n.
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公开(公告)号:EP0718768A1
公开(公告)日:1996-06-26
申请号:EP96102994.9
申请日:1994-08-10
发明人: Kawasaki, Shumpei , Akao, Yasushi , Noguchi, Kouki , Hasegawa, Atsushi , Ohsuga, Hiroshi , Kurakazu, Keiichi , Matsubara, Kiyoshi , Hayakawa, Akio , Ito, Yoshitaka
CPC分类号: G06F9/3001 , G06F12/0893 , G06F13/36 , G06F13/405 , G06F15/7817 , H04W28/08 , H04W52/0216 , H04W88/02 , Y02D10/12 , Y02D10/13 , Y02D10/14 , Y02D10/151 , Y02D70/142 , Y02D70/26
摘要: A single-chip microcomputer comprising: a first bus having a central processing unit and a cache memory connected therewith; a second bus having a dynamic memory access control circuit and an external bus interface connected therewith; a break controller for connecting the first bus and the second bus selectively; a third bus having a peripheral module connected therewith and having a lower-speed bus cycle than the bus cycles of the first and second buses; and a bus state controller for effecting a data transfer and a synchronization between the second bus and the third bus. The single-chip microcomputer has the three divided internal buses to reduce the load capacity upon the signal transmission paths so that the signal transmission can be accomplished at a high speed. Moreover, the peripheral module required to have no operation speed is isolated so that the power dissipation can be reduced.
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