CHAPTER 11 STANDBY FUNCTION
User's Manual U11919EJ3V0UM00
171
(c) Releasing by RESET input
When the HALT mode is released by the RESET signal, execution branches to the reset vector address
in the same manner as the ordinary reset operation, and program execution is started.
Figure 11-3. Releasing HALT Mode by RESET Input
HALT
Instruction
RESET
Signal
Wait
(2
15
/f
X
: 6.55 ms)
Reset
Period
HALT Mode
Operation
Mode
Oscillation
Settling
Wait Status
Clock
Operation
Mode
Oscillation
Stop
Oscillation
Oscillation
Remarks 1. f
X
: System clock oscillation frequency
2. The parenthesized values apply to operation at f
X
= 5.0 MHz.
Table 11-2. Operation after Release of HALT Mode
Releasing Source
MK
××
IE
Operation
0
0
Executes next address instruction
0
1
Executes interrupt processing
Maskable interrupt request
1
×
Retains HALT mode
Non-maskable interrupt request
−
×
Executes interrupt processing
RESET input
−
−
Reset processing
×
: Don't care
Summary of Contents for mPD789026 Subseries
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