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    • 26. 发明授权
    • Information processing apparatus with write protection function of
specific storage area
    • 具有特定存储区域的写保护功能的信息处理设备
    • US5721872A
    • 1998-02-24
    • US519769
    • 1995-08-28
    • Hiroshi Katsuta
    • Hiroshi Katsuta
    • G06F12/06G06F12/14G06F21/02
    • G06F12/1441
    • An information processing apparatus with a write protection function for a target storage area is provided, which includes a holding section for a write enable flag for indicating whether writing is to be permitted to the target storage area, and a write control section for permitting an intended write operation to the target storage area when the write enable flag held by the holding section indicates the same is to be permitted. The apparatus further includes a setting section for setting the write enable flag in the holding section when a dummy write instruction is executed for a command address, and a resetting section for resetting the write enable flag in the holding section when the intended write operation to the target storage area is executed. The resetting section may further include a section for resetting the write enable flag in the holding section when a predetermined number of instructions or bus cycles are executed after the dummy write instruction.
    • 提供了一种具有用于目标存储区域的写保护功能的信息处理装置,其包括用于指示是否允许向目标存储区域写入的写使能标志的保持部分,以及用于允许预期的写入控制部分 当由保持部保持的写使能标志指示相同时,对目标存储区域进行写操作。 该装置还包括一个设置部分,用于当对命令地址执行虚拟写入指令时,在保持部分中设置写入使能标志;以及复位部分,用于当对所述保持部分的所述写入操作进行所述写入操作时复位所述保持部分中的写入使能标志 执行目标存储区域。 复位部分还可以包括用于在虚拟写入指令之后执行预定数目的指令或总线周期时复位保持部分中的写入使能标志的部分。
    • 27. 发明授权
    • Data processing system having a saturation arithmetic operation function
    • 具有饱和算术运算功能的数据处理系统
    • US5684728A
    • 1997-11-04
    • US489622
    • 1995-06-12
    • Sachiko OkayamaHiroshi Katsuta
    • Sachiko OkayamaHiroshi Katsuta
    • G06F7/38G06F7/00G06F7/57G06F7/76G06F9/305G06F9/32
    • G06F7/57G06F9/30094G06F7/49921
    • A data processing system includes an instruction decoder for decoding a string of instructions including an arithmetic operation instruction, an arithmetic operation unit controlled by the instruction decoder for executing a designated arithmetic operation for a received data, the arithmetic operation unit outputting not only the result of the designated arithmetic operation, but also a sign information and an overflow/underflow information of the result of the designated arithmetic operation, and a saturation detecting circuit receiving the sign information and the overflow/underflow information for controlling a selector in such a manner that if an overflow has occurred when the sign information indicates the positive, the selector selects a positive maximum value; if an underflow has occurred when the sign information indicates the negative, the selector selects a negative maximum value; and if neither the overflow nor the underflow has occurred, the selector selects the result of arithmetic operation outputted from the arithmetic operation unit. Furthermore, if the overflow has occurred when the sign information indicates the positive, or if the underflow has occurred when the sign information indicates the negative, the saturation detecting circuit sets a saturation flag of a PSW indicative of existence/non-existence of a saturation processing. After the saturation flag is set, the saturation flag is reset by only execution of a data transfer instruction by the arithmetic operation unit.
    • 数据处理系统包括:指令解码器,用于解码包括算术运算指令的指令串,由指令译码器控制的算术运算单元,用于对接收到的数据执行指定的算术运算,算术运算单元不仅输出 指定的算术运算,以及指定算术运算结果的符号信息和溢出/下溢信息,以及饱和检测电路,接收用于控制选择器的符号信息和溢出/下溢信息,以使得如果 当符号信息指示为正时,发生溢出,选择器选择正的最大值; 当符号信息指示为负时,如果出现下溢,则选择器选择负最大值; 并且如果没有发生溢出和下溢,则选择器选择从算术运算单元输出的算术运算结果。 此外,如果在符号信息表示正的情况下发生溢出,或者当符号信息指示为负时发生了下溢,则饱和度检测电路设置表示存在/不存在饱和的PSW的饱和标志 处理。 在饱和标志置位之后,通过算术运算单元仅执行数据传送指令来使饱和标志复位。
    • 28. 发明授权
    • Memory wait cycle control system for microcomputer
    • 微机内存等待周期控制系统
    • US5619669A
    • 1997-04-08
    • US60955
    • 1993-05-12
    • Hiroshi Katsuta
    • Hiroshi Katsuta
    • G06F12/06G06F12/00
    • G06F12/0653
    • A memory control system comprises a plurality of base address registers each for designating a base address of a corresponding memory block, and a corresponding number of block size registers each for designating the size of the corresponding memory block. An output of one base address register and an output of be corresponding block size register are supplied to a corresponding comparator, and compared with MSB bits of a memory access address. An output of the comparator selectively activates, in accordance with the order of priority, a corresponding memory control register which designates a wait state number for the corresponding memory block, so that the wait state number is outputted.
    • 存储器控制系统包括多个基地址寄存器,每个基地址寄存器用于指定对应的存储器块的基址,以及相应数量的块大小寄存器,每个用于指定对应的存储器块的大小。 将一个基地址寄存器的输出和相应的块大小寄存器的输出提供给相应的比较器,并与存储器访问地址的MSB位进行比较。 比较器的输出根据优先级的顺序选择性地激活相应的存储器控​​制寄存器,该存储器控制寄存器指定对应的存储块的等待状态号,从而输出等待状态号。
    • 30. 发明授权
    • Exhaust purifying system for hybrid vehicle and control method therefor
    • 混合动力汽车排气净化系统及其控制方法
    • US08875487B2
    • 2014-11-04
    • US13522912
    • 2011-02-16
    • Hiroshi Katsuta
    • Hiroshi Katsuta
    • F01N3/00B60W10/26F01N3/20B60W20/00
    • B60W10/26B60W20/16B60Y2300/474F01N3/2013Y02A50/2322Y02T10/26
    • An exhaust purifying system includes: a catalytic device supplied with electric power from a power supply unit; a first connecting unit connecting one end of the catalytic device to a negative electrode node of the power supply unit; a second connecting unit connecting the other end of the catalytic device to a positive electrode node of the power supply unit; a leak detecting unit detecting leak from the power supply unit; and a control unit controlling opening and closing of each of the first and second connecting units. When leak is not detected by the leak detecting unit in a leak check state where one of the first and second connecting units is closed and the other is opened, the control unit closes the other and applies current through the catalytic device, and when leak is detected in the leak check state, the control unit does not apply the current through the catalytic device.
    • 排气净化系统包括:从电源单元供应电力的催化装置; 将所述催化装置的一端与所述电源单元的负极节点连接的第一连接单元; 第二连接单元,将所述催化装置的另一端连接到所述电源单元的正电极节点; 泄漏检测单元,其从所述电源单元检测泄漏; 以及控制单元,其控制所述第一和第二连接单元中的每一个的打开和关闭。 当泄漏检测单元在第一和第二连接单元中的一个关闭并且另一个打开的泄漏检查状态下没有检测到泄漏时,控制单元关闭另一个并且通过催化装置施加电流,并且当泄漏为 在泄漏检查状态下检测到,控制单元不通过催化装置施加电流。