Renesas User System Interface Cable HS2655ECH61H - Manual (Page 27)

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Section 4 Verifying Operation
1. When using the E6000 emulator for the H8S/2655 group, turn on the emulator according to the
procedures described in the H8S Family E6000 Emulator User's Manual (HS2000EPI61HE).
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 Emulator Supplementory Information (HS2655EPI61HE).

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. Connect a crystal
oscillators to the EXTAL and XTAL terminals for the system clock. Select the external
clock as the system clock (
φ
), by using the CLOCK command (emulator command). The
user system interface cable has the oscillator circuits shown in figure 10. For details, refer
to section 20, Clock Pulse Generator, in the H8S/2655 Group Hardware Manual.
Figure 10 Clock Oscillator Circuits