Timing Sequence At Power-On - Renesas H8SX/1650 Hardware Manual

18.8.4

Timing Sequence at Power-On

Figure 18.4 shows the timing sequence at power-on.
At power-on, the RES pin must be driven low with the STBY pin driven high for a given time in
order to clear the reset state.
To enter hardware standby mode immediately after power-on, drive the STBY pin low after
exiting the reset state.
For details on clearing hardware standby mode, see section 18.8.3, Hardware Standby Mode
Timing.
1 Power supply
RES
STBY
Reset state
2
Figure 18.4 Timing Sequence at Power-On
Section 18 Power-Down States
Hardware standby mode
3
Rev.2.00 Jun. 28, 2007 Page 581 of 666
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