NEC uPD78056Y - Manual (Page 532)

532
CHAPTER 23 STANDBY FUNCTION
RESET
Signal
Operating
Mode
Clock
Reset
Period
STOP Mode
Oscillation Stop
Oscillation
Stabilization
Wait Status
Operating
Mode
Oscillation
Wait
(2 17 /f x : 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. ( ): f X : 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
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 Ч Ч Ч STOP mode hold
Test input 0 – Ч Ч Next address instruction execution
1 –
Ч Ч
STOP mode hold
RESET input – –
Ч Ч
Reset processing
Remark
×
: Don't care