公开(公告)号：US20050080961A1

公开(公告)日：2005-04-14

申请号：US10682571

申请日：2003-10-09

申请人： Ryan Bedwell ,  Arnaldo Cruz ,  John Vaglica ,  William Moyer

发明人： Ryan Bedwell ,  Arnaldo Cruz ,  John Vaglica ,  William Moyer

IPC分类号： G06F20060101 ,  G06F13/36 ,  G06F13/364

CPC分类号： G06F13/364

摘要： New approaches for providing communication between multiple masters (12, 14) and one or more shared resources (24, 30, 100) are needed. One example of a resource that may need to be shared is circuitry complying with the Universal Serial Bus (USB) standard (100). The USB specification defines the use of USB endpoints as data and control channels that reside in a USB device. In some cases it is desirable to have a certain number of endpoints controlled by one processor, and other endpoints controlled by a different processor, thus providing a shared control of all the endpoints. Circuitry (402, 417, 480) may be used to provide steering for additional signals such as interrupts. Other shared resources (24, 30) may use more centralized circuitry (36) to perform a steering function for additional signals.

公开(公告)号：US20060085702A1

公开(公告)日：2006-04-20

申请号：US10955356

申请日：2004-09-30

申请人： Qadeer Qureshi ,  John Vaglica ,  William Moyer ,  Ryan Bedwell

发明人： Qadeer Qureshi ,  John Vaglica ,  William Moyer ,  Ryan Bedwell

IPC分类号： G11C29/00

CPC分类号： G11C17/18

摘要： Storage circuitry (66) may be used to store the values of fuses (77) so that storage circuitry (66) can be read instead of fuses (77). By accessing the fuse values from storage circuitry (66) rather than from fuses (77), there will be no sense current to fuses (77) that may cause marginal fuse blowage for fuses that have not yet been blown. This helps to prevent the situation in which an unblown fuse is erroneously read as having been blown. The use of storage circuitry (66) thus significantly improves the reliability of fuse module (20). For some embodiments, selection storage circuitry (64) may be used to determine whether storage circuitry (66) may be read or whether one of fuses (77) must be read in order to retrieve the desired current fuse value. The fuse value stored in storage circuitry (66) can also be used as direct hardware signals (80).

摘要翻译： 存储电路（66）可以用于存储熔丝（77）的值，使得可以读取存储电路（66）而不是保险丝（77）。 通过从存储电路（66）而不是保险丝（77）访问熔丝值，对熔断器（77）将没有感应电流可能导致尚未熔断的熔断器的边缘熔断器。 这有助于防止未熔断的保险丝被错误地读取为已被吹灭的情况。 因此，存储电路（66）的使用显着地提高了熔丝模块（20）的可靠性。 对于一些实施例，可以使用选择存储电路（64）来确定是否可以读取存储电路（66），或者是否必须读取保险丝（77）之一以便检索所需的当前熔丝值。 存储在存储电路（66）中的熔丝值也可以用作直接硬件信号（80）。

公开(公告)号：US20050068799A1

公开(公告)日：2005-03-31

申请号：US10675005

申请日：2003-09-30

申请人： Ryan Bedwell ,  Christopher Chun ,  Qadeer Qureshi ,  John Vaglica

发明人： Ryan Bedwell ,  Christopher Chun ,  Qadeer Qureshi ,  John Vaglica

IPC分类号： G06F1/32 ,  G11C5/14 ,  G11C7/22 ,  G11C7/00 ,  G11C5/06

CPC分类号： G06F1/3275 ,  G06F1/3203 ,  G11C5/14 ,  G11C7/22 ,  G11C2207/2227 ,  Y02D10/14

摘要： Leakage current is eliminated in a memory array during a low power mode of a processing system having a processor that interfaces with the memory array. Because two power planes are created, the processor may continue executing instructions using a system memory while bypassing the memory array when the array is powered down. A switch selectively removes electrical connectivity to a supply voltage terminal in response to either processor-initiated control resulting from execution of an instruction or from a source originating in the system somewhere else than the processor. Upon restoration of power to the memory array, data may or may not need to be marked as unusable depending upon which of the two power planes supporting arrays to the memory array are located. Predetermined criteria may be used to control the timing of the restoration of power. Multiple arrays may be implemented to independently reduce leakage current.