Renesas RSKRX111, User Manual

Page: 19 / 43

RSKRX111 6. Configuration
R20UT2193EG0200 Rev. 2.00 Page 18 of 42
Apr 14, 2014
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 short or isolate parts of a circuit. Option links
are listed in the following sections, detailing their function when fitted or removed.
Bold, blue text indicates
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 RX111 Group Hardware Manual and RSKRX111 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 Pin2 Comment Related Ref.
SW4 OFF OFF Single Chip Mode -
OFF ON Single Chip Mode -
ON OFF Boot Mode (SCI) -
ON ON Boot Mode (USB) R225
Table 6-1: MCU Option Links (1)
Table 6-2 below details the option links associated with configuring the Boot Mode (USB) Power Configuration.
Reference
Link Fitted Configuration Link Removed Configuration Related Ref.
R225 Boot Mode (USB): Self-Powered Boot Mode (USB): Bus Powered SW4
Table 6-2: MCU Option Links (1)