Configuration; Modifying The Rsk; Mcu Operating Modes - Renesas RX Series User Manual

RSKRX231

6.Configuration

6.1

Modifying the RSK

This section lists the option links that are used to modify the way RSK operates in order to access different
configurations. Configurations are made by modifying link resistors or headers with movable jumpers or by
configuration DIP switches
A link resistor is a 0Ω surface mount resistor, which is used to connect or isolate parts of a circuit. Option links
are listed in the following sections, detailing their function when fitted or removed.
the default configuration that the RSK is supplied with. Refer to the component placement diagram (§3) to
locate the option links, jumpers and DIP switches.
When removing soldered components, always ensure that the RSK is not exposed to a soldering iron for intervals
greater than 5 seconds. This is to avoid damage to nearby components mounted on the board.
When modifying a link resistor, always check the related option links to ensure there is no possible signal contention or
short circuits. Because many of the MCU's pins are multiplexed, some of the peripherals must be used exclusively.
Refer to the RX231 Group Hardware Manual and RSKRX231 schematics for further information.
6.2

MCU Operating Modes

Table 6-1 below details the option links associated with configuring the MCU operating modes.
Reference Pin 1
OFF
SW4
OFF
ON
ON
Table 6-2 below details the option links associated with configuring the Boot Mode (USB) Power Configuration.
Reference
J12 Self-Powered
Rev.
R20UT3027EG0100 1.00
Aug 24, 2015
Pin 2
OFF
ON
OFF
ON
Table 6-1: MCU Option Links (1)
Link Fitted Configuration
Table 6-2: MCU Option Links (2)
Explanation
Single Chip Mode
Single Chip Mode
Boot Mode (SCI)
Boot Mode (USB)
Link Removed Configuration
Bus-Powered
6. Configuration
Bold, blue text indicates
Related Ref.
-
-
-
J12
Related Ref.
SW4
Page 27 of 53