Renesas FP-128 User Manual download pdf (Page 22)

Section 4 Verifying Operation

1. When using the E6000 emulator for the H8S/2636 series, turn on the emulator according to the

procedures described in the H8S Series 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 (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

Select the target clock t or t2 as the system clock (φ), by using the CLOCK command

(emulator command). 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 EXTAL and XTAL 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.

To E6000

emulator

EXTAL XTAL

R2 270

R1 1 M

HCU04

Figure 10 Clock Oscillator Circuits

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Renesas FP-128 User Manual Page 22