Clock Settings; Overview Of Clock Settings - Renesas QB-78F1026 User Manual

QB-78F1026

2. 3 Clock Settings

2.3.1 Overview of clock settings

The following four types of clock settings are available.
Each clock setting is listed below.
Clock Used
(1) High-speed system clock
(X1 oscillator or External
input)
(2) Internal high-speed
oscillation clock
Note 2
(3) Subsystem clock
(XT1 oscillator)
Notes 1. First, select "System" in the debugger settings (refer to (a) When the clock generated within the emulator is
used, in (1) High-speed system clock).
If there is no clock that can be selected, follow the descriptions below.
• If the target system clock can supply a square wave for the emulator:
Select "External" in the debugger settings (refer to (b) When the clock is supplied from the target system,
in (1) High-speed system clock).
• If the target system clock cannot supply a square wave for the emulator:
Mount onto the emulator the oscillator of the clock to be used and select "Clock Socket" in the debugger
settings (refer to (c) When the oscillator (OSC1) mounted onto the emulator is used, in (1) High-speed
system clock).
2. First, select "System" in the debugger settings (refer to (a) When the clock generated within the emulator is
used, in (3) Subsystem clock).
If there is no clock that can be selected, it can be supplied from the target system clock. A square wave,
however, must be supplied (refer to (b) When the clock is supplied from the target system, in (3) Subsystem
clock).
Oscillation with the resonator on the target system is not supported. Therefore, the in-circuit emulator cannot emulate the
oscillation operation of the clock on the target system.
R20UT0290JJ0100 Rev. 1.00
Sep 30, 2010
Note 1
(a) When the clock generated within the emulator is used
(b) When the clock is supplied from the target system
(c) When the oscillator (OSC1) mounted onto the emulator
is used
Uses the clock internally generated from the emulator
(a) When the clock generated within the emulator is used
(b) When the clock is supplied from the target system
CHAPTER 2 SETUP PROCEDURE
Clock Supply Debugger Setting
(in Configuration Dialog)
System
External
Clock Socket
–
System
External
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