External Power Supply Input, J3; Usb1 Interface Connector; Figure 4: Connector Usb1, Usb Mini-B Type Host Connector Pin Configuration; Table 11: External Power Supply Input, J3 - NEC 78K0R - Cool it! User Manual

78K0R - Cool it!

3.9 External power supply input, J3

By using connector J3 (not assembled) external power supply can be applied to the 78K0R – Cool it!
board without a need of an active USB connection.
J3
1
2
Note: Be sure to unplug the USB connection before applying external power supply to input J3.

3.10 USB1 interface connector

This interface allows connecting the IAR C-SPY debugger to the 78K0R - Cool it! board in order to use
the On-Board debug function (TK-78K0R debugging). The TK-78K0R interface supports On-board
FLASH erasing / programming and standard debug features like code execution, single stepping,
breakpoints, memory manipulation etc.
For standard communication to a host computer - i.e. by using a terminal program - the input/output
signals of UART3 of the 78K0R/KG3 device can be redirected to the USB1 connector via the
µPD78F0731 USB microcontroller.
The power supply of the 78K0R - Cool it! board is also provided by the USB1 connector.
For connection with the host machine, use a USB cable (Mini-B type). For confirmation,
NEC Electronics used only the USB cable delivered with the 78K0R - Cool it! board.

Table 11: External power supply input, J3

1

Figure 4: Connector USB1, USB Mini-B Type Host Connector Pin Configuration

Connector USB1
1
2
3
4
5

Table 12: Pin Configuration of Connector USB1

User's Manual U18426EE1V0UM00
Input
VDD (+5V)
GND
5
Signal Name
VBUS
D-
D+
N.C.
GND
18