Releasing Stop Mode By Reset Input - NEC PD789860 User Manual

(c) Releasing by RESET input
When STOP mode is released by the RESET signal, the reset operation is performed after the oscillation
stabilization time has elapsed.
RESET
signal
Operating
mode
Oscillation
Clock
Note In the
In the
In the
Remarks 1. f
2. f
Releasing Source
Maskable interrupt request
Non-maskable interrupt request
of key return
RESET input
×: don't care
CHAPTER 15 STANDBY FUNCTION
Figure 15-5. Releasing STOP Mode by RESET Input
STOP
instruction
STOP mode
Oscillation
stop
µ
15 17
PD789860, 2 /f or 2 /f can be selected by using the mask option.
X X
µ
15
PD78E9860A, 2 /f : 6.55 ms (@f
X
µ
PD789861 and 78E9861A, 2
: System clock oscillation frequency (ceramic/crystal oscillation)
X
: System clock oscillation frequency (RC oscillation)
CC
Table 15-4. Operation After Releasing STOP Mode
MK×× IE
0 0
0 1
×
1
− ×
− −
User's Manual U14826EJ5V0UD
Note
Wait
Oscillation
stabilization
Reset
wait status
period
Oscillation
= 5.0 MHz operation)
X
µ
7
/f : 128 s (@f = 1.0 MHz operation)
CC CC
Operation
Executes next address instruction.
Executes interrupt servicing.
Retains STOP mode.
Executes interrupt servicing.
Reset processing
Operating
mode
155