阅读:1271回复:3
我是第一次接触pci,请教一个概念问题
看pci 2.2的书时被一个概念弄糊涂了:
cpu 通过bridge与local bus上的target传输数据。 这样是不是说bridge 是master,板卡是target?? 可是有的地方看着看着又要理解成板卡上有一个master状态机一个target状态机在跑, 我晕哪,请大虾赐教! master&target是个什么概念呢?? |
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沙发#
发布于:2002-04-27 19:10
用户被禁言,该主题自动屏蔽! |
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板凳#
发布于:2002-04-27 23:07
a device can initiate a transaction as a master.
also it can be addressed by other devices and then it will act as a slave device. in other word, a device can act as a master as well as a slave in a transaction. of course, it depends on the hardware designers. |
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地板#
发布于:2002-04-28 12:15
十分感谢,那么这个问题我就确认下来了! :)
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