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CHAPTER 20 STANDBY FUNCTION
Preliminary User’s Manual U14581EJ3V0UM00
(b) Clear upon RESET input
The STOP mode is cleared and after the lapse of oscillation stabilization time, reset operation is carried out.
Figure 20-5. STOP Mode Clear upon RESET Input
STOP instruction
Wait
(2
17
/f
X
: 15.6 ms)
Oscillation stabilization
wait status
Operation mode
STOP mode
Operation mode
Oscillation stop
Clock
RESET
signal
Oscillation
Oscillation
Reset
period
Remarks 1. f
X
: Main system clock oscillation frequency
2. Figures in parentheses apply to operation with f
X
= 8.38 MHz.
Table 20-4. Operation after STOP Mode Clear
Clear Source
MK
××
PR
××
IE
ISP
Operation
Maskable interrupt request
0
0
0
×
Next address instruction execution
0
0
1
×
Interrupt service execution
0
1
0
1
Next address instruction execution
0
1
×
0
0
1
1
1
Interrupt service execution
1
×
×
×
STOP mode hold
RESET input
—
—
×
×
Reset processing
×
: don’t care
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