发明名称 Programmable frequency divider
摘要 A clock divider and method of operating the same. In various embodiments, the clock divider may be configured to divide clock frequencies by both even and odd divisors. The divisor may be an integer that is represented by an N-bit value, and the clock divider may be programmable by writing the N-bit value to a register. The divisor may be even or odd. During operation, the clock divider may decrement a counter down from an initial value (derived from the N-bit value representing the divisor) to a trigger value. When the trigger value is detected, the clock divider may cause the output clock to toggle. The trigger value may depend on whether the divisor is even or odd. The clock divider may be re-programmed during operation by writing a new N-bit value into the register. Re-programming may include changing the divisor from an even value to an odd value.
申请公布号 US8134389(B2) 申请公布日期 2012.03.13
申请号 US20100731591 申请日期 2010.03.25
申请人 HUANG ZHIBIN;APPLE INC. 发明人 HUANG ZHIBIN
分类号 H03B19/00 主分类号 H03B19/00
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