| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a processor clock generating circuit and a clock generating method for designing a low-power-consumption CDMA modem chip. SOLUTION: The processor clock signal generating circuit for a modem chip includes a 1st clock generation part 110 which generates a 1st clock signal according to enable and disable signals, a 2nd clock generation part 120 which generates a 2nd clock signal having a lower frequency than the 1st clock signal, a decoder which decides which of power-down instruction word or and power-up instruction word an instruction word inputted from outside is by decoding the inputted instruction word and generates a control signal, a clock selection part 140 which outputs one of the 1st and 2nd clock signals as a processor clock signal, and a 1st clock control part 130 which activates or inactivates the generation of the 1st clock signal.</p> |
