Chapter 2 System Configuration; Rl78/I1A Dc/Dc Led Control Evaluation Board; Host Computer; Power Supply - Renesas RL78/I1A User Manual

RL78/I1A

Chapter 2 System Configuration

Figure 1:

2.1 RL78/I1A DC/DC LED Control Evaluation Board

2.2 Host Computer

2.3 Power Supply

R01UH0363EJ0100 Rev. 1.00
March 23, 2012
The RL78/I1A DC/DC LED Control Evaluation Board system configuration is
given in the diagram below:
RL78/I1A DC/DC LED Control Evaluation Board System Configuration
RL78/I1A DC/DC LED Control Evaluation Board is a demonstration board for
evaluating the new Renesas RL78/I1A family of devices. The device used is the
RL78/I1A (R5F107DEG). The board can be directly connected to the host system
via a USB port. The host system may be used for On-Board debugging or Flash
programming and to allow execution of the Demonstration program on the
RL78/I1A device.
As default, the RL78/I1A is using the 32 MHz internal high-speed oscillator, but
the RL78/I1A DC/DC LED Control Evaluation Board is provided with a connection
for an external 20 MHz oscillator (not fitted) if the user wishes to use a different
clock frequency than that provided by the internal high speed oscillator. An
external low power 32.768 KHz resonator is provided for the sub-clock.
The USB host interface enables communication to the RL78/I1A DC/DC LED
Control Evaluation Board. The µPD78F0730 78K0 8-bit microcontroller with on-
chip USB interface and the Renesas Electronics virtual UART driver allows
application software to access the USB device in the same way as it would
access a standard RS232 interface. The Renesas Electronics virtual UART driver
appears to the windows system as an extra Com Port, in addition to any existing
hardware Com Ports.
RL78/I1A DC/DC LED Control Evaluation Board is powered by a 5V DC power
supply and also by USB interface when the µPD78F0730 78K0 microcontroller is
to be used for On-Board debugging, flash programming or virtual UART
communication purpose.
Chapter 2 System Configuration
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