公开(公告)号：US20070186020A1

公开(公告)日：2007-08-09

申请号：US11348219

申请日：2006-02-06

Applicant: Barry Drexler ,  Steven Sipek

Inventor： Barry Drexler ,  Steven Sipek

IPC: G06F13/368 ,  G06F13/00

CPC classification number: G06F13/368

Abstract: A system may comprise multiple master/slave devices coupled to a common bus, where one of the devices may operate as the current master device and the other devices may operate as current slave devices. Current slave devices may embed bus ownership request information within response packets transmitted in response to standard bus operations, such as reads and writes, issued by the current master device. When the current master device is idle, its bus interface may continually poll the current slave devices at regular intervals, according to a specified protocol, to ascertain whether any of them are requesting bus ownership. A response to a request for bus ownership received by the current master device may be configured according to desired system functionality. In one system, ownership may always be transferred to the requesting device. In other systems, the current master device may transmit a subsequent standard bus operation request packet, or a unique response packet, either comprising embedded information indicating whether ownership of the bus has been granted.

Abstract translation: 系统可以包括耦合到公共总线的多个主/从设备，其中一个设备可以作为当前主设备操作，并且其他设备可以作为当前从设备操作。 当前从设备可以将响应分组中的总线所有权请求信息嵌入到响应于由当前主设备发出的标准总线操作（例如读和写）。 当当前主设备空闲时，其总线接口可以按照规定的时间间隔连续轮询当前从设备，以确定其中任何一个是否请求总线所有权。 可以根据期望的系统功能来配置对当前主设备接收的对总线所有权请求的响应。 在一个系统中，所有权总是可以转移到请求设备。 在其他系统中，当前主设备可以发送随后的标准总线操作请求分组或独特的响应分组，其包括指示是否已经授权总线的所有权的嵌入信息。

公开(公告)号：US20070186021A1

公开(公告)日：2007-08-09

申请号：US11346729

申请日：2006-02-03

Applicant: Barry Drexler ,  Steven Sipek

Inventor： Barry Drexler ,  Steven Sipek

IPC: G06F13/24 ,  G06F13/00

CPC classification number: G06F13/4295 ,  G06F13/24

Abstract: A computer system, more generally a master-slave system, may be configured with interrupt handling capability without additional dedicated interrupt lines. An interrupt condition may be bound with its relevant cause information and transmitted by a slave device during a typical response to any operation that a master device may have issued, such as a read or a write. In addition, a link level protocol may be configured in the bus interface of the master device to continually poll specified addresses, or to issue a unique command targeted at interrupts. The master device may be unaware of the unique requests, as the bus may remain idle as seen by the master device. The response to the unique requests may be similar to the interrupt message information transmitted as part of a response to a standard request that may be made by the master device. A master device may thus also receive interrupts without having to configure a slave device with the ability to make requests, or without the master device having to poll for interrupts.

Abstract translation: 计算机系统，更一般地，主从系统可以配置具有中断处理能力而没有额外的专用中断线。 中断条件可能与其相关的原因信息绑定，并且在对主设备可能已经发布的任何操作（例如读取或写入）的典型响应期间由从设备发送。 此外，可以在主设备的总线接口中配置链路级协议以连续地轮询指定的地址，或者发出针对中断的唯一命令。 主设备可能不知道唯一的请求，因为总线可以保持空闲，如主设备所见。 对唯一请求的响应可以类似于作为对主设备可能做出的标准请求的响应的一部分而发送的中断消息信息。 因此，主设备也可以接收中断，而不必配置具有进行请求的能力的从设备，或者没有主设备必须轮询中断。