公开(公告)号：US07570646B2

公开(公告)日：2009-08-04

申请号：US09964158

申请日：2001-09-26

申请人： Martin Li ,  Jay B. Reimer ,  Shakuntala Anjanaiah ,  Natarajan Seshan ,  Patrick J. Smith

发明人： Martin Li ,  Jay B. Reimer ,  Shakuntala Anjanaiah ,  Natarajan Seshan ,  Patrick J. Smith

IPC分类号： H04L12/28

CPC分类号： G06F13/4004 ,  G06F1/24 ,  G06F13/28 ,  G06F13/385

摘要： A slave interface unit controls the exchange of data between a master processing unit and a plurality of slave processing units operating in the asynchronous transfer mode (ATM) of operation. The ATM slave interface unit has a receive unit and a transmit unit that exchange data cells and control signals with the ATM master processing unit. The receive unit and the transmit unit are coupled to a receive buffer storage unit and a transmit buffer storage unit, respectively. The receive buffer storage unit and the transmit buffer storage unit exchange data and control signals with the direct memory access unit. The ATM slave interface unit includes a configuration interface unit having a register that identifies the location in the data cell where the destination address is located and relates the destination address to the particular processing unit or memory location. The receive buffer unit uses the information in the register to determine the destination of the data cell.

摘要翻译： 从接口单元控制主处理单元和以异步传送模式（ATM）操作的多个从属处理单元之间的数据交换。 ATM从接口单元具有接收单元和与ATM主处理单元交换数据信元和控制信号的发送单元。 接收单元和发送单元分别耦合到接收缓冲存储单元和发送缓冲存储单元。 接收缓冲存储单元和发送缓冲存储单元与直接存储器存取单元交换数据和控制信号。 ATM从接口单元包括配置接口单元，其具有标识目的地址所在的数据单元中的位置的寄存器，并将目的地地址与特定处理单元或存储器位置相关联。 接收缓冲器单元使用寄存器中的信息来确定数据单元的目的地。