Multiplex communications – Wide area network – Packet switching
Patent
1996-10-31
1998-04-07
Hua, Ly
Multiplex communications
Wide area network
Packet switching
370359, 395821, 395843, G06F 1300, G06F 1338
Patent
active
057375224
ABSTRACT:
A serial input/output circuit with an automatic transfer function can easily re-transfer correct data even if a transfer error occurs during automatic transfer. When the transfer of one data has been completed, an automatic transfer data pointer normally automatically updates its contents and indicates an address in an automatic transfer RAM, which corresponds to data to be next transferred. An error generation active circuit makes an error control signal significant when an error detecting circuit detects an error produced in data or the occurrence of the error in the data is notified from a transfer opposite party. When the error control signal is made significant, the automatic transfer data pointer and the transfer counter do not update their values.
REFERENCES:
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patent: 4596014 (1986-06-01), Holeman
patent: 4729095 (1988-03-01), Colley et al.
patent: 4959813 (1990-09-01), Todoroki
patent: 5014237 (1991-05-01), Masters et al.
patent: 5333274 (1994-07-01), Amini et al.
Mitsubishi microcomputer user's manual 3817 series p. 20 issued on 1994 by Mitsubishi Electric Corporation.
Hua Ly
Mitsubishi Denki & Kabushiki Kaisha
Mitsubishi Electric Semiconductor Software Co. Ltd.
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