Apparatus and method for generating external interface signals i

Details Apparatus and method for generating external interface signals i Apparatus and method for generating external interface signals i

1997-12-05

1999-08-24

Pan, Daniel H.

Excavating

371 42, 371 272, 39518216, 39580038, G06F 112, G06F 11263

Patent

active

059434929

ABSTRACT:
An apparatus for generating control signals of a microprocessor includes a memory, for example, a pattern holding register storing an arbitrary bit pattern. The holding register can be loaded by software. A shift register is connected to receive the bit pattern from the pattern register. An output pin of the microprocessor receives each bit of the arbitrary bit pattern, directly, or indirectly via a bus interface unit, at a rate determined by a clock signal to generate control signals for arbitrary external devices.

REFERENCES:
patent: 4675862 (1987-06-01), Banzi, Jr. et al.
patent: 4698805 (1987-10-01), Sasuta et al.
patent: 4959832 (1990-09-01), Bartell, Jr.
patent: 5325501 (1994-06-01), Carlstedt

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