发明名称 |
CLOCK MONITOR AND SYSTEM ON CHIP INCLUDING THE SAME |
摘要 |
A system on chip includes a plurality of function blocks configured to perform predetermined functions, respectively, a clock control unit configured to generate a plurality of operating clock signals that are provided to the plurality of function blocks, respectively, a clock monitor configured to monitor frequencies of the operating clock signals to generate an interrupt signal, and a processor configured to control the frequencies of the operating clock signals based on the interrupt signal. The clock monitor includes a selector configured to select one of the operating clock signals to provide a selected clock signal, a frequency detector configured to detect a frequency of the selected clock signal to provide a detection frequency, and an interrupt generator configured to generate the interrupt signal based on the detection frequency, where the interrupt signal indicates a frequency abnormality of the operating clock signal corresponding to the selected clock signal. |
申请公布号 |
US2016065215(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
US201514692771 |
申请日期 |
2015.04.22 |
申请人 |
SAMSUNG ELECTRONICS CO., LTD. |
发明人 |
SHIN DONG-SUK;AHN JI-YONG;LEE JANG-HYEON |
分类号 |
H03K19/00;H03L7/18;H03K5/19 |
主分类号 |
H03K19/00 |
代理机构 |
|
代理人 |
|
主权项 |
1. A clock monitor comprising:
a selector configured to select one of a plurality of operating clock signals to provide a selected clock signal, the plurality of operating clock signals being provided to a plurality of function blocks, respectively; a frequency detector configured to detect a frequency of the selected clock signal to provide a detection frequency; and an interrupt generator configured to generate an interrupt signal based on the detection frequency, the interrupt signal indicating a frequency abnormality of the operating clock signal corresponding to the selected clock signal. |
地址 |
SUWON-SI KR |