4 power source supply selector, 5 led status indicators – Renesas M16C FAMILY User Manual

Page 90

7 Appendix

7.1.4 Power Source Supply Selector

Specifications of the Power Source Supply Selector (S1: Power Mode) are shown in Table

7-1.

Table 7-1 Jumper Settings

Switch No.

Default State

Function

USB

(BUSPWRD)

Selects the power supply for the Target MCU.
USB (BUSPWRD):
The power is supplied from the USB Monitor Board.

TARGET (TRGTPWRD):
The power is supplied from the

Target Board

Note: The USB Monitor Board supplies a 5 V power. If a 3.3 V power supply is needed,

choose to supply the power from the

Target Board

7.1.5 LED Status Indicators

The LED status indicators on the USB Monitor Board are listed in the table below.

LED No.

Color

Function

STOP

Red

When steadily on, the Target MCU is idle.

RUN Green

When

steadily on, the Target MCU is running.

STATUS Yellow When

flashing

(normal), the USB Monitor is normal.

When flashing (fast), the USB Monitor is operating

erratically.

(Note)

POWER

Red

When steadily on, the Target MCU is being supplied

with power.

Note: If this LED flashes fast, the

USB Monitor Board

may have gone wild. In such a case, see

Section [6. Troubleshooting].