IE-780148-NS-EM1 Renesas Electronics America, IE-780148-NS-EM1 Datasheet - Page 24

• Manufacturer Part Number: IE-780148-NS-EM1
• Description: BOARD EMULATOR 78K0 UPD780148
• Manufacturer: Renesas Electronics America

Specifications of IE-780148-NS-EM1

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

3.2.2 Main system clock settings
(1) When using clock that is already mounted on emulation board
22
(1) When using clock that is
(2) When using clock mounted by
(3) When inputting pulse from
(4) When using Ring-OSC
Notes 1. The IE-780148-NS-EM1 operates with the Ring-OSC clock when the integrated debugger is started and
already mounted on
emulation board
user
target system
When the IE-780148-NS-EM1 is shipped, a 10.0 MHz crystal oscillator is already mounted in the IE-780148-NS-
EM1’s UMCLK socket. When using the factory-set mode settings, there is no need to make any other hardware
settings.
When starting the integrated debugger (ID78K0-NS), open the configuration dialog box and select “Internal” in the
area (Clock) for selecting the CPU’s clock source (this selects the emulator’s internal clock).
After the integrated debugger is started, if the SFR register MCM0 is changed to 1, the CPU operating clock is
switched from Ring-OSC to the clock already mounted on the emulation board.
2. Select the source clock for the main system clock when the integrated debugger is started. After that, do
Frequency of Main System Clock
immediately after reset.
not change the setting.
Note 1
10.0 MHz
Other than 10.0 MHz
240 kHz
Table 3-2. Main System Clock Settings
CHAPTER 3 INSTALLATION
User’s Manual U16963EJ1V0UM
1
0
SFR Register
MCM0
Oscillator
Oscillator assembled by
user
Oscillator (not used)
IE-780148-NS-EM1
UMCLK Socket
Internal
External
Internal or external
Selection
CPU Clock Source
Note 2
(ID78K0-NS)