The Embedded Ultra-Low Power (ULP) Intel486(TM) GX processor is intended for embedded battery-operated and hand-held applications. The embedded ULP Intel486 GX processor provides all of the features of the Intel486(TM) SX processor except for the 8-bit bus sizing logic and the processor-upgrade pin. The processor typically uses 20% to 50% less power than the Intel486 SX processor. Additionally, the embedded ULP Intel486 GX processor external data bus and parity signals have level-keeper circuitry and a fast-recovery core clock which are vital for ultra-low-power system designs.