Renesas QB-RL78G1F User Manual page 19

QB-RL78G1F In-Circuit Emulator
(1) High-speed system clock
The clock settings are listed below.
(a) When the clock generated within the emulator is used
(b) When the clock (a square wave) is supplied from the target system
(c) When the oscillator (OSC1) mounted onto the emulator is used
Note This setting is not possible when TARGET LED is not lit.
Remarks 1. Settings other than the above are prohibited.
2. Selection of (a) or (b) is possible regardless of whether the oscillator is not mounted in the OSC1
socket.
(a) When the clock generated within the emulator is used
This method uses the clock generated inside the emulator.
The oscillation frequency that will be used must be set in the debugger. For details about how to set the
oscillation frequency, check the user's manual for the debugger that will be used.
(b) When the clock (a square wave) is supplied from the target system
The clock input from the target system is then used.
To input a clock from the target system, input to the clock pin (X2) the square-wave signal with the same
voltage potential as that of the target device supply voltage (VDD). Inputting the inverted signal to X1 is not
necessary.
The selectable frequencies are same as those of the target device.
For debugger settings, check the user's manual for the debugger that will be used. Oscillation by a resonator
in the target system is not supported.
(c) When the oscillator (OSC1) mounted onto the emulator is used
Mount an oscillator in the OSC1 socket in the emulator and then select the "Clock socket" in the debugger.
The clock generated from the oscillator mounted on the emulator is used.
The selectable frequencies are same as those of the target device.
To modify the clock setting, the acrylic board on the bottom of the QB-RL78G1F must be removed.
The acrylic board can be removed by lifting it up.
For debugger settings, check the user's manual for the debugger that will be used.
R20UT3352EJ0100 Rev.1.00
Jan 30, 2015
Table 2-2. Settings for High-Speed System Clock
Type of Clock to Be Used
CHAPTER 2 SETUP PROCEDURE
OSC1
–
Note
–
Oscillator mounted
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