Clock Settings; Clock Settings Outline - NEC IE-703116-MC-EM1 User Manual

2.2 Clock Settings

2.2.1 Clock settings outline

The following 4 clock setting methods are available.
For details, refer to 2.2.2 Clock setting methods.
(1) Use the crystal oscillator mounted on OSC1 of the IE-703116-MC-EM1 as the internal clock (4.000 MHz).
(2) Change the crystal oscillator mounted on OSC1 of the IE-703116-MC-EM1 and use it as the internal clock
(other than 4.000 MHz).
(3) Mount a crystal/ceramic resonator and capacitor on CN2 of the IE-703116-MC-EM1 and use it as the internal
clock (other than 4.000 MHz).
(4) Use the crystal oscillator on the target system as the external clock (clock input from target system).
Caution When using an external clock, input the clock generated by the crystal oscillator to the X1 pin.
When a clock generated by a crystal/ceramic resonator is used, the emulator does not operate
normally.
IE-V850E-MC
EVA chip
20
CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS
Figure 2-2. Clock Settings Outline
Oscillator/
Switching with
resonator switch
debugger
JP1 IC20
Crystal/ceramic
CN2
resonator can
be mounted
V850E/IA1
I/O chip
User's Manual U14700EJ2V0UM
IE-703116-MC-EM1
Crystal oscillator
(can be changed)
OSC1
X1
SW1
PLL/Direct
mode
switching
CKSEL
CLKOUT
Target system
Crystal
oscillator