IE-780701-NS-EM1 Renesas Electronics America, IE-780701-NS-EM1 Datasheet - Page 22

• Manufacturer Part Number: IE-780701-NS-EM1
• Description: BD EMULAT 78K0 UPD78F0701/780701
• Manufacturer: Renesas Electronics America

Specifications of IE-780701-NS-EM1

• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.2 Clock Settings
3.2.1 Overview of clock settings
(1) Clock that is already mounted on emulation board
(2) Clock that is mounted by user
(3) External clock
board or (2) Clock that is mounted by user. For an internal clock, a resonator is connected to the target device
and the target device’s internal oscillator is used. An example of the external circuit is shown in part (a) of Figure 3-2.
During emulation, the resonator that is mounted on the target system is not used. Instead, the clock that is mounted
on the emulation board connected to the IE-78K0-NS or IE-78K0-NS-A is used.
oscillator is not used. An example of the external circuit is shown in part (b) of Figure 3-2.
20
The system clock to be used during debugging can be selected from (1) to (3) below.
If the target system includes an internal clock, select either (1) Clock that is already mounted on emulation
If the target system includes an external clock, select (3) External clock.
For an external clock, a clock signal is supplied from outside the target device and the target device’s internal
Caution The IE system will be hung-up if the system clock is not supplied normally. Moreover, be sure to
input a rectangular wave as the clock from the target. The IE system does not operate if the
crystal resonator is connected to X1.
(a) Internal clock
Figure 3-2. External Circuits Used as System Clock Oscillator
X2
X1
Target device
CHAPTER 3 INSTALLATION
User’s Manual U16116EJ2V0UM
External
clock
(b) External clock
X1
X2
Target device