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    • 73. 发明授权
    • Bus bridge including first and second memory areas corresponding to first and second buses
    • 总线桥包括对应于第一和第二总线的第一和第二存储区域
    • US06954820B2
    • 2005-10-11
    • US10261797
    • 2002-09-30
    • Kenichi Kawaguchi
    • Kenichi Kawaguchi
    • G06F13/36G06F13/40G06F13/42
    • G06F13/4027G06F13/4031G06F13/4059G06F13/423G06F2213/0024
    • A bus bridge is connected to a primary bus and a secondary bus, and relays data between a master and a target which are each connected to a different one of the primary and secondary buses. The bus bridge includes a primary bus interface, a secondary bus interface, a data FIFO, and a register block. The register block, which can be written by the master, includes two registers corresponding to the primary and secondary buses. Relay information showing the number of entries of data to be relayed from the target to the master is registered in a register corresponding to a bus to which the target is connected. In a read transaction, the primary bus interface or the secondary bus interface reads data from the target until data of the amount shown by the registered relay information is stored in the data FIFO.
    • 总线桥连接到主总线和辅助总线,并且中继主机和目标之间的数据,每个主站和目标站之间连接到主总线和次总线之间的不同的总线。 总线桥包括主总线接口,辅助总线接口,数据FIFO和寄存器块。 可由主器件写入的寄存器块包括与主母线和辅助母线相对应的两个寄存器。 显示要从目标到主机中继的数据的条目数的中继信息被登记在对应于目标连接到的总线的寄存器中。 在读取事务中,主总线接口或辅助总线接口从目标读取数据,直到被注册的中继信息所示量的数据被存储在数据FIFO中。