Pin selection system for microcontroller having multiplexer sele

Details Pin selection system for microcontroller having multiplexer sele Pin selection system for microcontroller having multiplexer sele

1996-11-18

1998-07-28

Meky, Moustafa M.

Electronic digital logic circuitry

Multifunctional or programmable

Array

326 37, G06F 104

Patent

active

057872996

ABSTRACT:
A microcontroller with selectable function external pins. Program controllable configuration registers control pin function selection through multiplexers which select between data/address lines and special function unit output lines and which control line drivers which are disabled when the pins are used as input pins.

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M6800 Microprocessor Application Manual, Motorola Semiconductor Products Inc., 1975, pp. 3-8 to 3-20.

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