发明名称 |
Analog/digital conversion circuit, semiconductor device, and electric power steering controlling unit |
摘要 |
The present invention provides a method in which a counting source is provided in data after analog/digital conversion to lessen a load placed when new and old data after the conversion are compared to each other. A log function is prepared in an A/D conversion controlling circuit. The log function latches the output of a counter in a 12-bit digital/analog converter at the timing of outputting a pulse from a comparator to determine data written into a data register group. In the case where a setting item related to log output in an ADCR is set at 1, not only the output of the 12-bit digital/analog converter, but also the output of a timer counter of an MTU is latched as a log. |
申请公布号 |
US8301337(B2) |
申请公布日期 |
2012.10.30 |
申请号 |
US20100851835 |
申请日期 |
2010.08.06 |
申请人 |
OTA NAOYA;RENESAS ELECTRONICS CORPORATION |
发明人 |
OTA NAOYA |
分类号 |
G06F7/00 |
主分类号 |
G06F7/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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