公开(公告)号：EP2051170A1

公开(公告)日：2009-04-22

申请号：EP07791324.2

申请日：2007-07-25

申请人： NEC Corporation

发明人： NAKAGAWA, Takao ,  TACHIKAWA, Takashi ,  NAKAMURA, Naoyuki ,  TSUKAMOTO, Tadashi ,  HOSOI, Toshikatsu ,  KURAKANE, Hiroshi

IPC分类号： G06F13/38

CPC分类号： G06F13/1673 ,  G06F13/4059

摘要： There are provided a CPU connection circuit and a method wherein the CPU connection circuit is a circuit to be employed by two CPUs by alternately conducting a changeover between two buffers disposed therebetween to prevent an event that data processing cannot be fully executed by the CPU on the receiving side. There is included a memory controller 303 which monitors whether or not an amount of data stored by a CCPU 1 in either one of buffers 301 and 302 reaches a predetermined threshold value; when the amount of data stored by the CCPU 1 in the buffer 301, 302 reaches the threshold value, the memory controller 303 requests an ACPU 2 to acquire the data stored in the buffer and changes the storage destination of data from the CCPU to the other one of the buffers; the threshold value is a value more than a unit quantity of data which the CCPU 1 sends to the buffer 301, 302.

摘要翻译： 提供了一种CPU连接电路和一种方法，其中CPU连接电路是由两个CPU采用的电路，通过交替地在其间设置的两个缓冲器之间进行切换，以防止CPU在数据处理不能完全执行的事件 接收方。 包括存储器控制器303，其监视由缓冲器301和302中的任一个中的CCPU 1存储的数据量是否达到预定阈值; 当CCPU1存储在缓冲器301,302中的数据量达到阈值时，存储器控制器303请求ACPU 2获取存储在缓冲器中的数据，并将数据的存储目的地从CCPU改变到另一个 其中一个缓冲区; 阈值是多于CCPU1向缓冲器301,302发送的数据的单位量的值。