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HD6432351 Datasheet, PDF (983/989 Pages) Renesas Technology Corp – The H8S/2000 CPU has an internal 32-bit architecture, is provided with sixteen 16-bit general registers and a concise
E.2 When Pins Settle from the High-Impedance State at Power-On
When the STBY pin level changes from low to high after powering on, the chip goes to the power-
on reset state after a high level is detected at the STBY pin. While the chip detects a low level at
the STBY pin, it is in the hardware standby mode. During this interval, the pins are in the high-
impedance state.
After detecting a high level at the STBY pin, the chip starts oscillation.
VCC
STBY
NMI
RES
tOSC1
Hardware
standby mode
Power-on reset
T1
Confirm t1min and tNMIS.
φ
NMI = High
RES = Low
Figure E-2 When Pins Settle from the High-Impedance State at Power-On
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