Datasheet

Section 4 Clock Pulse Generators
Rev. 8.00 Mar. 09, 2010 Page 112 of 658
REJ09B0042-0800
Pin Connection when Not Using Subclock
When the subclock is not used, connect pin X
1
to GND and leave pin X
2
open, as shown in figure
4.10.
X
X
1
2
GND
Open
Figure 4.10 Pin Connection when not Using Subclock
External Clock Input
Connect the external clock to the X1 pin and leave the X2 pin open, as shown in figure 4.11.
Note that no external clock should be input to the H8/38124 Group.
X
1
External clock input
X
2
Open
Figure 4.11 Pin Connection when Inputting External Clock