NEC IE-789835-NS-EM1, Руководство пользователя

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CHAPTER 3 INSTALLATION
User’s Manual U16290EJ1V0UM
29
(b) When using a crystal oscillator
•
Items to be prepared
•
Crystal oscillator (see pinouts shown in Figure 3-12)
Figure 3-12. Crystal Oscillator (Main System Clock)
V
CC
CLOCK OUT GND
NC
<Steps>
<1> Prepare the IE-789835-NS-EM1.
<2> Remove the crystal oscillator that is mounted in the X2 socket of the IE-789835-NS-EM1.
<3> Mount a crystal oscillator in the X2 socket from which the crystal oscillator was removed in <2> above.
Insert the crystal oscillator pin into the socket aligning the pins as shown in the figure below.
Figure 3-13. Pin Alignment of Crystal Oscillator and Socket (Main System Clock)
Crystal Oscillator Pin Name Socket Pin No.
NC 1
GND 7
CLOCK OUT 8
V
CC
14
<4> Install the IE-789835-NS-EM1 in the IE-78K0S-NS or IE-78K0S-NS-A.
14
13
12
11
10
9
8
V
CC
CLOCK OUT
GND
NC
1
2
3
4
5
6
7
Crystal oscillator Socket