Bidirectional programmable I/O driver array

Details Bidirectional programmable I/O driver array Bidirectional programmable I/O driver array

1994-07-13

1996-01-30

Bowler, Alyssa H.

Boots, shoes, and leggings

395832, 3642397, 364DIG1, G06F 1500

Patent

active

054887364

ABSTRACT:
Disclosed is a current driver that includes an array of current buffers and a program control circuit. The program control circuit responds to an externally generated programming signal to generate buffer direction control, daisy chain configuration control, and tristate control signals. The buffers of the array of current buffers are individually programmed by the direction control and the daisy chain configuration control signals to transmit data in one of a forward and reverse direction and to daisy chain a buffer to a preceding buffer, respectively. The array of current buffers is responsive to the tristate control signal to operate in a tristate mode. The array of current buffers may be reprogrammed in response to a reset signal.

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patent: 5089951 (1992-02-01), Iijima
patent: 5212809 (1993-05-01), Oka
patent: 5214747 (1993-05-01), Cok

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