Soldering Bridges Evdd, Avref0 And Avref1; Analog Reference Voltage Input, J2; Figure 3: Soldering Bridges Evdd, Avref0 And Avref1; Table 9: Soldering Bridges Evdd, Avref0 And Avref1 - NEC 78K0R - Cool it! User Manual

78K0R - Cool it!

3.7 Soldering bridges EVDD, AVREF0 and AVREF1

Additional configuration of the 78K0R - Cool it! board can be done by the soldering bridges EVDD,
AVREF0 and AVREF1. The different configuration modes are shown in the table below:
EVDD
Soldering
bridge
EVDD
AVREF0
AVREF1

3.8 Analog reference voltage input, J2

By using connector J2 (not assembled) different reference voltages can be applied to the A/D converter
reference input pin AVREF0 and to the D/A converter reference input pin AVREF1 of the 78K0R/KG3
microcontroller.
J2
1
2
Note: Before applying different reference voltages to the 78K0R – Cool it! board be sure to cut
off the corresponding soldering bridges AVREF0 respectively AVREF1.

Figure 3: Soldering bridges EVDD, AVREF0 and AVREF1

Configuration
Closed (default) VDD connected to EVDD
Open VDD disconnected from EVDD
Closed (default VDD connected to AVREF0 pin
Open VDD disconnected from AVREF0 pin
Closed (default) VDD connected to AVREF1 pin
Open VDD disconnected from AVREF1 pin

Table 9: Soldering bridges EVDD, AVREF0 and AVREF1

AVREF0 (A/D converter reference)
AVREF1 (D/A converter reference)

Table 10: Analog reference voltage input, J2

User's Manual U18426EE1V0UM00
Mode
Input
AVREF0
AVREF1
17