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    • 1. 发明授权
    • Microprocessor and method for setting up its peripheral functions
    • 微处理器和设置其外设功能的方法
    • US5307464A
    • 1994-04-26
    • US621641
    • 1990-12-03
    • Yasushi AkaoShiro BabaYoshiyuki MiwaTerumi SawaseYuji SatoShigeki Masumura
    • Yasushi AkaoShiro BabaYoshiyuki MiwaTerumi SawaseYuji SatoShigeki Masumura
    • G06F13/12G06F15/78G06F13/00
    • G06F13/124G06F15/7814
    • A single chip microprocessor 1 includes a CPU 2 and a sub-processor 5 for software implementation of peripheral functions of the microprocessor 1. Sub-processor 5 includes electrically writable internal storage devices microprogram memory unit 13 and sequence control memory unit 62 for storing the software. Peripheral functions are defined and/or modified by writing software into the memory units 13 and 62. Accordingly, the time it takes to define and/or modify the peripheral functions is the time it takes to program the memory units 13 and 62. The sub-processor 5 also includes an execution unit 16 for executing a plurality of tasks and an address control circuit 14 for providing addresses to the microprogram memory unit 13. Additionally, the microprogram memory unit 13 provides microinstructions to the execution unit 16. The sequence control memory unit 62 is part of the address control circuit 14 which also includes a plurality of address registers MAR0 to MAR11. The sequence control memory unit 62 is used for storing information regarding the order of selection of the multiple address registers MAR0 to MAR11. One of the address registers MAR0 to MAR11 is selected each time the sequence control memory unit 62 is read. A microaddress stored in the selected address register is then supplied to the microprogram memory unit 13.
    • 单片微处理器1包括用于软件实现微处理器1的外围功能的CPU 2和子处理器5.子处理器5包括电可写内部存储设备微程序存储单元13和用于存储软件的顺控控制存储单元62 。 通过将软件写入存储器单元13和62来定义和/或修改外围功能。因此,定义和/或修改外围功能所花费的时间是编程存储器单元13和62所花费的时间。子 处理器5还包括用于执行多个任务的执行单元16和用于向微程序存储单元13提供地址的地址控制电路14.另外,微程序存储单元13向执行单元16提供微指令。顺序控制存储器 单元62是还包括多个地址寄存器MAR0至MAR11的地址控制电路14的一部分。 顺序控制存储器单元62用于存储关于多个地址寄存器MAR0至MAR11的选择顺序的信息。 每次读序列控制存储器单元62选择地址寄存器MAR0至MAR11中的一个。 存储在选择的地址寄存器中的微地址然后被提供给微程序存储单元13。
    • 5. 发明授权
    • Single-chip semiconductor integrated circuit device and microcomputer
integrated on a semiconductor chip
    • 集成在半导体芯片上的单片半导体集成电路器件和微计算机
    • US5784637A
    • 1998-07-21
    • US414157
    • 1995-03-31
    • Terumi SawaseKouki NoguchiHideo NakamuraYasushi AkaoShiro BabaYoshimune Hagiwara
    • Terumi SawaseKouki NoguchiHideo NakamuraYasushi AkaoShiro BabaYoshimune Hagiwara
    • G06F9/24G06F15/78
    • G06F9/24G06F15/7814
    • A semiconductor integrated circuit device formed on a single chip or a microcomputer integrated on a semiconductor chip includes a central processing unit (CPU), an interface circuit (or an input/output port), a bus coupled to the CPU and the interface circuit (or the input/output port) and a variable logic circuit (or a subprocessor). The variable logic circuit (or the subprocessor) includes non-volatile memory elements storing instructions, a control circuit generating control signals in accordance with the stored instructions, and an arithmetic logic unit controlled by the generated control signals. Information can be written into the non-volatile memory elements from outside to construct the variable logic circuit or the subprocessor with any desired logical functions. The wiring operation of the memory elements can be executed in a short time, and a user can thus quickly obtain a single-chip microprocessor or a single-chip semiconductor integrated circuit device having hardware of peculiar prescribed specifications.
    • 形成在集成在半导体芯片上的单个芯片或微计算机上的半导体集成电路装置包括中央处理单元(CPU),接口电路(或输入/输出端口),耦合到CPU和接口电路的总线 或输入/输出端口)和可变逻辑电路(或子处理器)。 可变逻辑电路(或子处理器)包括存储指令的非易失性存储器元件,根据存储的指令产生控制信号的控制电路以及由所生成的控制信号控制的算术逻辑单元。 可以从外部将信息写入非易失性存储器元件,以任何期望的逻辑功能构建可变逻辑电路或子处理器。 存储元件的布线操作可以在短时间内执行,因此用户可以快速获得具有特定规定规格的硬件的单芯片微处理器或单芯片半导体集成电路器件。