Boots – shoes – and leggings
Patent
1993-04-23
1995-12-12
Swann, Tod R.
Boots, shoes, and leggings
395431, 3642383, 364DIG1, G06F 1300
Patent
active
054758149
ABSTRACT:
An I/O port enable to intercept the SCSI communications between a SCSI control circuit and host system regardless at the data transmission mode or at data reception mode. When the SCSI communications are intercepted, a system controller transfers data from a main memory to a buffer memory through the SCSI control circuit at the data transmission mode of the SCSI control circuit and performs the self-diagnosis of the SCSI control circuit by comparing data transmitted to the buffer memory with the test data stored in the main memory. At the data reception mode of the SCSI control circuit, the system controller stores data read from the main memory to the buffer memory through the buffer memory control circuit and performs the self-diagnosis of the SCSI control circuit by comparing data read from the I/O port with data stored in the main memory. Thus, it is possible to vest the self-diagnosis function to the disk control system comprising the SCSI control circuit as the communicating means with the host system so that to improve its liability.
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Asta Frank J.
NEC Corporation
Swann Tod R.
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