Motorola Corporation

Robert L Winter

Anthony M Reipold

Kenneth L McIntyre, Jr

Colleen M Collins

A data processing system (20) having programmable chip select signal negation. A user programmable 'NEGATE EARLY' value generates a chip select negation one bus cycle before the end of a transaction, giving an external device additional time to disconnect from the current bus cycle before the start of the next bus cycle. Early negation of a chip select signal provides an efficient method of interface with slower devices while providing adding functionality to the chip select signal.

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Austin, TX, United States of America

Robert L Winter