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R8C2K bảng dữ liệu(PDF) 48 Page - Renesas Technology Corp

tên linh kiện R8C2K
Giải thích chi tiết về linh kiện  RENESAS MCU R8C FAMILY / R8C/2x SERIES
PDF  471 Pages
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nhà sản xuất  RENESAS [Renesas Technology Corp]
Trang chủ  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

R8C2K bảng dữ liệu(HTML) 48 Page - Renesas Technology Corp

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R8C/2K Group, R8C/2L Group
5. Resets
Rev.1.10
Dec 21, 2007
Page 31 of 450
REJ09B0406-0110
5.6
Watchdog Timer Reset
When the PM12 bit in the PM1 register is set to 1 (reset when watchdog timer underflows), the MCU resets its pins,
CPU, and SFR if the watchdog timer underflows. Then the program beginning with the address indicated by the
reset vector is executed. After reset, the low-speed on-chip oscillator clock divided by 8 is automatically selected as
the CPU clock.
The watchdog timer reset does not reset some SFRs. Refer to 4. Special Function Registers (SFRs) for details.
The internal RAM is not reset. When the watchdog timer underflows, the contents of internal RAM are undefined.
Refer to 15. Watchdog Timer for details of the watchdog timer.
5.7
Software Reset
When the PM03 bit in the PM0 register is set to 1 (MCU reset), the MCU resets its pins, CPU, and SFR. The
program beginning with the address indicated by the reset vector is executed. After reset, the low-speed on-chip
oscillator clock divided by 8 is automatically selected for the CPU clock.
The software reset does not reset some SFRs. Refer to 4. Special Function Registers (SFRs) for details.
The internal RAM is not reset.



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