Renesas Starter Kit+ for RX72N
6. Configuration
R20UT4443EG0100 Rev. 1.00
Page 29 of 57
Nov 30, 19
6. Configuration
6.1
Modifying the RSK+
This section lists the option links that are used to modify the way CPU board 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 CPU board 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 CPU board 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 RX72N Group User’s Manual: Hardware and CPU board schematics for further information.
In the table in this section, "pin" expression is omitted, so please read as follows.
Example: U9.4 -> U9.4pin
J7(1-2 short) -> J7(1pin-2pin short)
6.2
MCU Operating Modes
below details the option links associated with configuring the MCU Operating Modes.
Table 6-1: MCU Operating Modes Switch Settings
SW4 Pin1
SW4 Pin2
J15
*1
Configuration
Related Links
OFF
OFF (don’t care) Open (don’t care)
Single Chip Mode
R274
, R275, R40,
J11
OFF
OFF
Open (don’t care)
Boot Mode(FINE Interface)
*2
R274
, R275, R40,
J11
ON
OFF
don’t care
SCI Boot Mode
R274
, R275, R40,
J11
ON
ON
Open
USB Boot Mode (Bus-powered)
R274
, R275, R40,
J11
Shorted
USB Boot Mode (Self-powered)
R274
, R275, R40,
J11
*1
: Jumper J15 is not mounted on the board at the time of product shipment.
*2
: To use the FINE interface, mode control by the E1 / E2 Lite debugger is required.
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