CHAPTER 2 NAMES AND FUNCTIONS OF COMPONENTS
User’s Manual U14481EJ3V0UM
24
2.2.2 Clock setting methods
A list of the hardware settings for each clock setting is shown below.
Table 2-1. List of Hardware Settings for Each Clock Setting
Type of Clock Used
Clock Source
Selection
Note 1
OSC Crystal
Oscillator
JP1 Setting
Clock
Mode
SW1 CKSEL
Pin
Note 2
PLL
Direct
PLL
Low-level
input
(1) Use crystal oscillator (OSC)
mounted on IE-703107-MC-
EM1 as internal clock.
Internal Factory
setting
(5.000 MHz)
1
2
7
8
Direct
Direct
PLL
High-level
input
PLL
Direct
PLL
Low-level
input
(2) Change crystal oscillator
(OSC) mounted on IE-703107-
MC-EM1 and use it as the
internal clock
Note 3
.
Internal
Change (to other
than 5.000 MHz)
1
2
7
8
Direct
Direct
PLL
High-level
input
PLL
Direct
PLL
Low-level
input
(3) Use the crystal oscillator on
the target system as an
external clock.
External Crystal
oscillator
can be either
mounted or not
mounted
1
2
7
8
Direct
Direct
PLL
High-level
input
Notes 1.
Select the clock source in the clock source selection area in the configuration dialog box on the
debugger.
2.
The input setting to the CKSEL pin is made only when a target system is connected. Leave this pin open
when operating the emulator on a stand-alone basis. The emulator operates according to the setting of
SW1.
3.
When replacing the crystal oscillator on the emulator, use an oscillator with the following specifications.
Power supply voltage
5 V
Output level
CMOS
Shape 8-pin
type
Pin layout
Pin 1: NC Pin 4: GND Pin 5: OUT Pin 8: V
DD
Caution
Settings other than those described above are prohibited.
