User's Manual

Target Board for RX23W 5. User Circuit
R01UHxxxEG0100
Rev.0.60 Page 20 of 28
Nov. 26, 2019
Crrent Consumption Measurement Header
The current consumption measurement header (J7) is used for measuring current consumption of the evaluation
MCU. The current consumption can be measured by connecting an ammeter to the evaluation MCU. Note that
the cut pattern (SS20) should be cut when using this header. Figure 5-7 shows the position of the header and
cut pattern. (header parts are not mounted)
Figure 5-7: Position of Current Consumption Measurement Header and SS6 Cut Pattern
MCU Header
The MCU header is installed with two 28-pin headers (CN3, CN4). The headers are allocated with interval of
2.54 mm pitch. The evaluation MCU and the header are connected according to each pin number as 1pin to
1pin, and 2pin to 2pin in order until 56pin. (except 1, 3, 4, 19, 22, 28, 32 ,37, 38, 39, 40, 41, 42 44, 45, 46 pins)
(header parts are not mounted)
RESET Switch
Press the RESET switch to turn on the hard reset for the evaluation MCU.
User Switch
The user switch (SW 1) is an optional switch to be used if necessary. It is connected to 17 pin and P15 port of
the evaluation MCU. The interrupt is assigned to IRQ 5.
Cut Pattern
All cut patterns are set to the connected state at the time of factory shipment. Cut or repair soldering if necessary.
Figure 5-8 show the example of the cut patterns
Connected Cut Repaired Soldering
Figure 5-8: Cut Pattern Treatment Example
When repairing the cut pattern on the bottom side, repair soldering for SS19 shown in Figure 5-4.
SS6
Soldering
Current Consumption
Measurement
Header