Connecting Oscillator To External Clock - Fujitsu MB90480 Series Hardware Manual

CHAPTER 5 CLOCKS
5.6

Connecting Oscillator to External Clock

Devices in the MB90480/485 series contain a system clock generator circuit and
generate clocks using an externally connected oscillator. Also, an external clock can
be input to it.
■
Connection of oscillator and external clock
❍ Example of connecting crystal or ceramic oscillator
Connect a crystal oscillator or a ceramic oscillator as shown in the example in Figure 5.6-1.
❍ Example of connecting external clock
Connect an external clock to pin X0 and set up pin X1 to be open as shown in the example in
the Figure 5.6-2.
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Figure 5.6-1 Example of connecting crystal or ceramic oscillator
Figure 5.6-2 Example of connecting external clock
MB90480/485 series
X0(X0A) X1(X1A)
MB90480/485 series
X0(X0A) X1(X1A)
Open