CMT2380F17
Rev0.1 | 82/347
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12 System Reset
During reset, all I/O Registers are set to their initial values, and the program starts execution from the
Reset Vector, 0000H, or ISP start address by OR setting. The CMT2380F17 has 7 sources of reset: power-on
reset, external reset, software reset, illegal address reset, brown-out reset 0, brown-out reset 1 and WDT
reset. Figure 12
–1 shows the system reset source in CMT2380F17.
The following sections describe the reset happened source and corresponding control registers and
indicating flags.
12.1
Reset Source
Power -On Reset
External Reset
Software Reset
Illegal Addr. Reset
Internal Reset
BOD0 Triggered
BO0RE
(PCON2.1)
BOD1 Triggered
BO1RE
(PCON2.3)
WDT Overflow
Brown-Out Reset0
Brown-Out Reset1
WDT Rese t
SWRF
EXRF
POF0
WREN
(WDTCR.7)
Figure 12-1. System Reset Source
12.2
Power-On Reset (POR)
Power-on reset (POR) is used to internally reset the CPU during power-up. The CPU will keep in reset
state and will not start to work until the VDD power rises above the voltage of Power-On Reset. And, the reset
state is activated again whenever the VDD power falls below the POR voltage. During a power cycle, VDD
must fall below the POR voltage before power is reapplied in order to ensure a power-on reset.
Summary of Contents for CMT2380F17
Page 27: ...CMT2380F17 Rev0 1 27 347 www cmostek com 1 25 Phase Noise...
Page 177: ...CMT2380F17 Rev0 1 177 347 www cmostek com Figure 17 3 PCA Interrupt System...
Page 246: ...CMT2380F17 Rev0 1 246 347 www cmostek com SnMIPS S0MI S1MI 1 P3 3 P4 7...
