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| HD64F2149 Datasheet, PDF (761/1035 Pages) Renesas Technology Corp – Hitachi 16-Bit Single-Chip Microcomputer | |||
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Oscillator
ø
NMI
NMIEG
SSBY
NMI
exception
handling
NMIEG = 1
SSBY = 1
Software standby mode
(power-down state)
Oscillation
settling time
tOSC2
NMI exception
handling
SLEEP instruction
Figure 24.3 Software Standby Mode Application Example
24.6.5 Usage Note
In software standby mode, I/O port states are retained. Therefore, there is no reduction in current
dissipation for the output current when a high-level signal is output.
Current dissipation increases while waiting for oscillation to settle.
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