Patent
1996-12-20
1999-08-10
Teska, Kevin J.
H03K 1700, G06F 944
Patent
active
059371803
ABSTRACT:
An integrated circuit which can function in a number of different operating modes is set to a setting mode by a control signal on the control signal input. The circuit includes a signal sequence generator which in the setting mode generates setting signal sequences on four of the address connections of the circuit. An operating mode is selected by coupling one of the address connections with a setting signal input on a signal sequence detector in the circuit. The signal sequence detector interprets the setting signal sequence from the signal sequence generator and sets control outputs, on the signal sequence detector to different combinations of "low" and "high" signal levels respectively in dependence on the sequence received in the detector, whereafter the circuit switches to an operating mode in which the address conductors forward signals in accordance with the operating mode.
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Fiul Dan
Telefonaktiebolaget LM Ericsson
Teska Kevin J.
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