NEC IE-784937-NS-EM1, Руководство пользователя

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CHAPTER 3 INSTALLATION
User’s Manual U16556EJ1V0UM
26
3.3.3 Timer clock settings
Table 3-2. Timer Clock Settings
IE-784937-NS-EM1 Frequency of Timer Clock
Parts Board (USCLK)
When using clock that is already
mounted on emulation board
32.768 kHz
6 and 8 shorted
When using clock mounted by user Other than 32.768 kHz Oscillator assembled by user
Remark The IE-784937-NS-EM1’s factory settings are those listed above under “when using clock that is already
mounted on emulation board”.
(1) When using clock that is already mounted on emulation board
When the IE-784937-NS-EM1 is shipped, a 32.768 kHz crystal resonator is already mounted on the IE-784937-
NS-EM1. Pins 6 and 8 on the parts board (USCLK) are shorted. There is no need to make any other settings via
the integrated debugger (ID78K4-NS).
(2) When using clock mounted by user
The settings described under either (a) or (b) are required, depending on the type of clock to be used.
There is no need to make any other settings via the integrated debugger (ID78K4-NS).
(a) When using a ceramic resonator or crystal resonator
•
Items to be prepared
•
Parts board
•
Capacitor CA
•
Ceramic resonator or crystal resonator
•
Capacitor CB
•
Resistor Rx
•
Solder kit
<Steps>
<1> Solder the target ceramic resonator or crystal resonator, resistor Rx, capacitor CA, and capacitor CB (all with
a suitable oscillation frequency) onto the supplied parts board (as shown below).