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Section 4 Verifying Operation
1. Start up the emulator according to the procedures described in the H8S/2646 E6000 Emulator
User's Manual (HS2646EPI61HE).
2. Verify the user system interface cable connections by accessing the external memory and ports
to check the bus states of the pins with the MEMORY_FILL command (emulator command).
If an error is detected, recheck the soldered IC socket and the location of pin 1.
3. The emulator connected to this user system interface cable supports two kinds of clock sources
as the MCU clock: an emulator internal clock and an external clock on the user system. For
details, refer to the H8S/2646 E6000 Emulator User's Manual (HS2646EPI61HE).
To use the emulator internal clock
Select the clock in the emulator station as the system clock (φ), by using the CLOCK
command (emulator command).
To use the external clock on the user system
Supply the external clock from the user system to the emulator by inputting the external
clock from the EXTAL on the cable head or connecting a crystal oscillator to the XTAL
and EXTAL terminals. For details, refer to section 21, Clock Pulse Generator, in the
H8S/2636 F-ZTAT™ Hardware Manual.
Figure 10 shows the oscillator circuit on the user system interface cable.
R2 270
R1 1 M HCU04
HCU04
HCU04
To E6000
emulator
EXTAL XTAL
Figure 10 Clock Oscillator Circuits