
17. Power down operation
MC97F6108A User’s manual
188
17.4
Released operation of STOP mode
After STOP1, 2 mode is released, operation begins according to content of related interrupt register just
before STOP mode starts (refer to Figure 86). If the global interrupt Enable Flag (IE.EA)is set to `1`, the
STOP1, 2 mode is released by a certain interrupt of which interrupt enable flag is set to `1` and the
CPU jumps to the relevant interrupt service routine. Even if the IE.EA bit is cleared to
‘
0
’
, the STOP
mode is released by the interrupt of which the interrupt enable flag is set to
‘
1
’
.
Figure 86. STOP1, 2 Mode Release Flow
SET SCCR.7
SET PCON[1:0]
SET IEx.b
STOP1,2 Mode
IEx.b==1 ?
Interrupt Request
STOP1,2 Mode
Release
Y
Interrupt Service
Routine
Next Instruction
N
Corresponding Interrupt
Enable Bit (IE, IE1, IE2, IE3)