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データシートサーチシステム |
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データシートサーチシステム |
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H8SX/1663M データシート(PDF) 131 Page - Renesas Technology Corp |
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H8SX/1663M データシート(HTML) 131 Page - Renesas Technology Corp |
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131 / 1504 page  Section 4 Resets Rev. 2.00 Sep. 24, 2008 Page 99 of 1468 REJ09B0412-0200 • H8SX/1668R Group 2 to 0 All 0 R/W Reserved These bits are always read as 0. The write value should always be 0. • H8SX/1668M Group 2 LVDF Undefined R/(W)* 1 LVD Flag This bit indicates that the voltage detection circuit has detected a low voltage (V cc at or below Vdet). [Setting condition] V cc falling to or below Vdet [Clearing condition] • After V cc has exceeded Vdet and the specified stabilization period has elapsed, writing 0 to the bit after reading it as 1. • Generation of a pin reset or power-on reset. 1 — Undefined R/W Reserved The write value should always be 0. 0 PORF Undefined R Power-on Reset Flag This bit indicates that a power-on reset has been generated. [Setting condition] Generation of a power-on reset [Clearing condition] Generation of a pin reset Notes: 1. Only 0 can be written to clear the flag. 2. Supported only by the H8SX/1668M Group. |
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