NEC PD78052 - Operation after STOP Mode Release; Release by STOP Mode RESET Input

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CHAPTER 23 STANDBY FUNCTION
RESET
Signal
Operating
Mode
Clock
Reset
PeriodSTOP Mode
Oscillation Stop
Oscillation
Stabilization
Wait Status
Operating
Mode
Oscillation
Wait
(2
17
/fx : 26.2 ms)
STOP
Instruction
Oscillation
(c) Release by RESET input
When a RESET signal is input, the STOP mode is released. And after the lapse of oscillation stabilization
time, reset operation is carried out.
Figure 23-5. Release by STOP Mode RESET Input
Remarks 1. f
X: main system clock oscillation frequency
2. ( ): fX: 5.0 MHz
Table 23-4. Operation after STOP Mode Release
Release Source MK×× PR×× IE ISP Operation
Maskable interrupt request 0 0 0 × Next address instruction execution
001×Interrupt service execution
0 1 0 1 Next address instruction execution
01×0
0 1 1 1 Interrupt service execution
1 ×××STOP mode hold
Test input 0 – ××Next address instruction execution
1–××STOP mode hold
RESET input – – ××Reset processing
Remark ×: Don't care