Precautions - Epson S1C17704 Technical Manual

23 SUPPLY VOLTAGE DETECTOR (SVD)

23.6 Precautions

• After the SVD module starts operating, 500 µs (max.) is required until a stable detection result can be read. When
reading the detection results without using an interrupt, wait for the stabilization time before reading SVDDT (D0/
SVD_RSLT register) after writing 1 to SVDEN (D0/SVD_EN register).
• The SVD operation increases current consumption. Therefore, set SVDEN (D0/SVD_EN register) to 0 to disable
the SVD operation if supply voltage detection is not necessary.
• To avoid occurrence of unnecessary interrupts, be sure to reset the SVDIF flag (D0/SVD_IFLG register) before
the SVD interrupt is enabled using SVDIE (D0/SVD_IMSK register).
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EPSON
S1C17704 TECHNICAL MANUAL