发明名称 |
NONSYNCHRONOUS CHANNEL/DASD COMMUNICATION SYSTEM |
摘要 |
A control unit for DASD operation to transfer data between the device and a buffer and between a channel and a buffer. In that manner the channel and device are enabled to transfer data independently of each other. Mechanisms are provided for communication between the channel interface process in the control unit and the device interface process in the control unit. Some of these mechanisms are stored with the record in the buffer and others are stored in control storage. Principle communicating mechanisms include a device record pointer, a channel record pointer, a next operation field, a device state indicator, record control flags, and two buffer pointers.
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申请公布号 |
CA2046720(C) |
申请公布日期 |
1995.10.24 |
申请号 |
CA19912046720 |
申请日期 |
1991.07.10 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BEARDSLEY, BRENT CAMERON;BELLO, KEITH ANTHONY;BENHASE, MICHAEL THOMAS;CLARK, FLORENCE JOANN;HUNTER, PAUL WAYNE;NORDAHL, DONALD MARVIN |
分类号 |
G06F13/12;G06F3/06;(IPC1-7):G06F12/00;G06F13/00 |
主分类号 |
G06F13/12 |
代理机构 |
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代理人 |
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