您好,
6678 srio 有4个doorbell寄存器,每个寄存器16位的doorbell info。请问这4个寄存器是否对应着4个port。比如fpga从port0给dsp发送门铃,对应的doorbell 0 register icsr某些位置位
谢谢
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您好,
6678 srio 有4个doorbell寄存器,每个寄存器16位的doorbell info。请问这4个寄存器是否对应着4个port。比如fpga从port0给dsp发送门铃,对应的doorbell 0 register icsr某些位置位
谢谢
doorbell 寄存器和port没有对应关系。
SRIO user guide的"Figure 2-22 Examples of DOORBELL_INFO Designations“可能可以帮助你理解。