Then, research the number of power and ground pins per area, region, or bank, as well as the number of SSOs allowed per power and ground pin pair for each I/O standard used.

• 接着研究每个部分、区域或者块的电源和接地引脚数目，还有对于所使用的每个I/O标准，每个电源和接地管脚对所允许的SSO数目。