HD6432351 Datasheet, PDF (682/989 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

19.3.2 External Clock Input
Circuit Configuration: An external clock signal can be input as shown in the examples in figure
19-5. If the XTAL pin is left open, make sure that stray capacitance is no more than 10 pF.
In example (b), make sure that the external clock is held high in standby mode.
EXTAL
XTAL
Open
External clock input
(a) XTAL pin left open
EXTAL
XTAL
External clock input
(b) Complementary clock input at XTAL pin
Figure 19-5 External Clock Input (Examples)
External Clock: The external clock signal should have the same frequency as the system clock
(ø).
Table 19-4 and figure 19-6 show the input conditions for the external clock.
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