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    • 1. 发明授权
    • Input/output subsystem having an integrated advanced programmable
interrupt controller for use in a personal computer
    • 具有用于个人计算机的集成高级可编程中断控制器的输入/输出子系统
    • US5857090A
    • 1999-01-05
    • US581162
    • 1995-12-29
    • Barry R. DavisBruce Young
    • Barry R. DavisBruce Young
    • G06F13/24
    • G06F13/24
    • A computer system is described having one or more host processors, a host chipset and a input/output (I/O) subsystem. The host processors are connected to the host chipset by a host bus. The host chipset is connected to the input/output subsystem by a primary personal computer interface (PCI) bus. The I/O subsystem is connected to I/O devices by a secondary PCI bus. The I/O subsystem includes advanced programmable interrupt controller (APIC) functionality typically provided within an I/O APIC chip within a host chipset. The APIC functionality of the I/O subsystem is primarily implemented in software executing on a core processor of the I/O subsystem. The software creates and accesses various APIC registers and tables, such as a redirection table, within a memory of the I/O subsystem. A single 3-wire APIC bus interconnects the host processors with the I/O subsystem. With this arrangement, non-PCI interrupt lines from the I/O devices are connected only into the I/O subsystem, rather than into the host chipset.
    • 描述了具有一个或多个主机处理器,主机芯片组和输入/输出(I / O)子系统的计算机系统。 主处理器通过主机总线连接到主机芯片组。 主机芯片组通过主要个人计算机接口(PCI)总线连接到输入/输出子系统。 I / O子系统通过辅助PCI总线连接到I / O设备。 I / O子系统包括通常在主机芯片组内的I / O APIC芯片内提供的高级可编程中断控制器(APIC)功能。 I / O子系统的APIC功能主要是在I / O子系统的核心处理器上执行的软件中实现的。 该软件在I / O子系统的存储器内创建和访问各种APIC寄存器和表,如重定向表。 单个3线APIC总线将主机处理器与I / O子系统互连。 通过这种安排,来自I / O设备的非PCI中断线仅连接到I / O子系统中,而不是连接到主机芯片组中。
    • 7. 发明申请
    • Method of interleaving asymmetric memory arrays
    • 交错非对称存储器阵列的方法
    • US20070022261A1
    • 2007-01-25
    • US11184704
    • 2005-07-19
    • Bruce Young
    • Bruce Young
    • G06F13/28
    • G06F13/1647G06F12/0607G11C8/04
    • A method of interleaving asymmetric memory arrays for providing more uniform memory access performance in computer systems utilizing asymmetrical memory configurations. The method of interleaving asymmetric memory arrays includes grouping a quantity of memory devices into a paired set and one unpaired device if the quantity of memory devices present is an odd number; interleaving the paired set of memory devices to form an initially interleaved set; and interleaving the unpaired device with the initially interleaved set to form a finally interleaved set of memory devices if the quantity of memory devices present is an odd number.
    • 交错非对称存储器阵列的方法,用于在利用不对称存储器配置的计算机系统中提供更均匀的存储器访问性能。 交织非对称存储器阵列的方法包括:如果存在的存储器件的数量是奇数,则将一定数量的存储器件分组成成对组和一个未配对器件; 交织所述成对的存储器件集合以形成最初交织的集合; 以及如果所存储的存储器件的数量是奇数,则将所述未成对设备与所述初始交织集合交织以形成最后交织的存储器件集合。
    • 8. 发明授权
    • Method and apparatus for dynamically adjusting the clock speed of a bus
depending on bus activity
    • 根据总线活动动态调整总线时钟速度的方法和装置
    • US6079022A
    • 2000-06-20
    • US728716
    • 1996-10-11
    • Bruce Young
    • Bruce Young
    • G06F1/08G06F1/32G06F13/00
    • G06F1/324G06F1/08G06F1/3203Y02B60/1217Y02B60/32
    • A dynamic clock control comprising an idle detector and a variable speed clock supply. The idle detector detects when an idle condition appears on the bus and sends an appropriate control signal to the variable speed clock supply. The clock supply, which supplies clocking signals for the bus components coupled to the bus, changes the frequency of the clocking signals from a faster, full-speed frequency to a lower frequency. When the bus becomes active, the idle detector causes the clock supply to supply clocking signals at the original full-speed frequency. With the apparatus and method of the present invention, the frequency of the clocking signals supplied to the bus components can be dynamically controlled without user intervention. Since for many bus components, power consumption is proportional to clocking frequency, a significant power savings is obtained for the overall bus system.
    • 动态时钟控制包括空闲检测器和可变速度时钟源。 空闲检测器检测总线上何时出现空闲状况,并向可变速度时钟电源发送适当的控制信号。 为连接到总线的总线组件提供时钟信号的时钟电源将时钟信号的频率从更快的全速频率改变到较低的频率。 当总线激活时,空闲检测器使时钟电源以原始全速频率提供时钟信号。 利用本发明的装置和方法,可以动态地控制提供给总线组件的时钟信号的频率,而无需用户干预。 由于对于许多总线组件,功耗与时钟频率成比例,因此总体总线系统获得了显着的功率节省。