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H8SX/1663M データシート(PDF) 136 Page - Renesas Technology Corp

部品番号 H8SX/1663M
部品情報  Renesas 32-Bit CISC Microcomputer H8SX Family / H8SX/1600 Series
PDF  1504 Pages
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メーカー  RENESAS [Renesas Technology Corp]
ホームページ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

H8SX/1663M データシート(HTML) 136 Page - Renesas Technology Corp

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Section 4 Resets
Rev. 2.00 Sep. 24, 2008 Page 104 of 1468
REJ09B0412-0200
4.9
Determination of Reset Generation Source
Reading RSTCSR, RSTSR, or LVDCR* of the voltage-detection circuit determines which reset
was used to execute the reset exception handling. Figure 4.2 shows an example of the flow to
identify a reset generation source.
Note
* Supported only by the H8SX/1668M Group.
No
Pin reset
No
No
Yes
LVDCR.LVDE=1
& LVDCR.LCDRI=0
& RSTSR.LVDF=1
Yes
RSTSR.
PORF=1
Power-on reset
*
Reset exception
handling
RSTCSR.RSTE=1
and RSTCSR.WOVF=1
No
Yes
Yes
RSTSR.
DPSRSTF=1
Deep software
standby reset
Watchdog timer
reset
Voltage monitoring
reset
*
Note:
* Supported only by the H8SX/1668M Group.
Figure 4.3 Example of Reset Generation Source Determination Flow



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