H8S15 Datasheet, PDF (748/904 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

Section 22 Power-Down Modes
H8S/2215 Group
22.5.3 Hardware Standby Mode Timing
Figure 22.4 shows an example of hardware standby mode timing.
When the STBY pin is driven low after the RES pin has been driven low, a transition is made to
hardware standby mode. Hardware standby mode is cleared by driving the STBY pin high, waiting
for the oscillation stabilization time, then changing the RES pin from low to high.
Oscillator
RES
STBY
Oscillation
stabilization
time t_OSC1
Reset exception
handling
Figure 22.4 Hardware Standby Mode Timing (Example)
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REJ09B0140-0900 Rev. 9.00
Sep 16, 2010