CHAPTER 17 STANDBY FUNCTION
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User’s Manual U11302EJ4V0UM
(d) Release by RESET input
When a RESET signal is input, the HALT mode is released. As is the case with a normal reset
operation, the program is executed after branch to the reset vector address.
Figure 17-3. HALT Mode Release by RESET Input
Remarks 1.
f
X
: Main system clock oscillation frequency
2.
Figures in parentheses apply to operation with f
X
= 5.0 MHz.
Table 17-2. Operation After HALT Mode Release
Release Source
MK
××
PR
××
IE
ISP
Operation
Maskable interrupt request
0
0
0
×
Next address instruction execution
0
0
1
×
Interrupt servicing
0
1
0
1
Next address instruction execution
0
1
×
0
0
1
1
1
Interrupt servicing
1
×
×
×
HALT mode hold
Non-maskable interrupt request
–
–
×
×
Interrupt servicing
Test input
0
–
×
×
Next address instruction execution
1
–
×
×
HALT mode hold
RESET input
–
–
×
×
Reset processing
×
: don’t care
HALT
instruction
RESET
signal
Wait
(2
17
/f
X
: 26.2 ms)
Reset
period
HALT mode
Operating
mode
Oscillation
stabilization
wait status
Clock
Operating
mode
Oscillation
stop
Oscillation
Oscillation