System for communicating with external device registers via two-

Details System for communicating with external device registers via two- System for communicating with external device registers via two-

1990-09-27

1994-03-29

Lee, Thomas C.

Telephonic communications

Special services

Anonymous party

395800, 379 93, 370 851, 3642223, 3649194, 364DIG1, G06F 300, G06F 1320

Patent

active

052989216

ABSTRACT:
A communication system provides communication over a serial bus between a microprocessor and an external device which includes a plurality of registers. The communication system includes a message generator within the microprocessor for generating unique register access messages which provide fast and efficient register access. The external device also includes a message generator which generates register access error messages and interrupt messages.

REFERENCES:
patent: 4698766 (1987-10-01), Entwistle et al.
patent: 4868784 (1989-09-01), Marshall et al.
patent: 4947317 (1990-08-01), Digiulio et al.

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