Setting The Clock-Selection Jumper - Renesas HS7125EDB01H User Manual

2.2.5

Setting the Clock-Selection Jumper

The EXTAL input from the user system or the crystal resonator installed on the debugging MCU
board can be selected as the source of the clock signal for the MCU. Refer to table 2.2 when
selecting the clock.
Table 2.2 Correspondence of Clock-Selection Jumper Settings
Silk-Screened Label
XTAL
USER CLK
Note: 'XTAL' should only be selected if a crystal resonator has been mounted across the crystal-
resonator installation sockets (X1) of the debugging MCU board. Users must provide the
crystal resonator.
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Figure 2.8 Clock-Selection Jumper
Jumper Pin (SW3)
Pins 1-2 closed
Pins 2-3 closed
Clock to be Used
Crystal resonator installed on the debugging MCU board
EXTAL input from the user system (factory setting)