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    Channel subsystem
    1.
    发明公开
    Channel subsystem 失效
    通道子系统。

    公开(公告)号：EP0118669A2

    公开(公告)日：1984-09-19

    申请号：EP84100445.0

    申请日：1984-01-17

    申请人： International Business Machines Corporation

    发明人： Blount, Frederick Thomas ,  Capowski, Robert Stanley ,  Casper, Daniel Francis ,  DelSonno, Lawrence Ralph ,  Geller, Robert Franklin ,  Kusmiss, Joseph Michael ,  Zimmerman, Terrence Keith

    IPC分类号： G06F13/12

    CPC分类号： G06F13/126

    摘要： A channel communicator (CC) has a storage array for holding an entry for each channel and for holding a busy vector and an interrupt vector that each have a bit for each channel. The channel communicator (CC) is connected between the input bus and the output bus that connect the channels and an I/O processor (IOP) to processor main store. A message to the channel communicator (CC) includes the identification (ID) of the channel that the message is to or from and the channel communicator (CC) uses this identification (ID) as an address for accessing a channel entry or a bit in a vector. The message also carries a command that controls the channels communicator (CC) to store a data portion of a message or to fetch a channel entry or a vector from the array and load it onto the output bus addressed to the I/O processor (IOP) or to one of the channels. The command also controls addressing a particular one of the vectors. The channel communicator (CC) also has means responsive to a command to perform a sequence of operations for testing the vectors and for testing fields of an entry in the array and for using the results of the test to control the execution of the command.

    Channel subsystem
    2.
    发明公开
    Channel subsystem 失效
    频道子系统

    公开(公告)号：EP0118669A3

    公开(公告)日：1988-04-27

    申请号：EP84100445

    申请日：1984-01-17

    申请人： International Business Machines Corporation

    发明人： Blount, Frederick Thomas ,  Capowski, Robert Stanley ,  Casper, Daniel Francis ,  DelSonno, Lawrence Ralph ,  Geller, Robert Franklin ,  Kusmiss, Joseph Michael ,  Zimmerman, Terrence Keith

    IPC分类号： G06F03/04

    CPC分类号： G06F13/126

    摘要： A channel communicator (CC) has a storage array for holding an entry for each channel and for holding a busy vector and an interrupt vector that each have a bit for each channel. The channel communicator (CC) is connected between the input bus and the output bus that connect the channels and an I/O processor (IOP) to processor main store. A message to the channel communicator (CC) includes the identification (ID) of the channel that the message is to or from and the channel communicator (CC) uses this identification (ID) as an address for accessing a channel entry or a bit in a vector. The message also carries a command that controls the channels communicator (CC) to store a data portion of a message or to fetch a channel entry or a vector from the array and load it onto the output bus addressed to the I/O processor (IOP) or to one of the channels. The command also controls addressing a particular one of the vectors. The channel communicator (CC) also has means responsive to a command to perform a sequence of operations for testing the vectors and for testing fields of an entry in the array and for using the results of the test to control the execution of the command.