Renesas DP-64S Informações Técnicas descarregar pdf (Página 24)

Section 3 Verifying Operation

1. When using the H8S/2148 series E6000 emulator (HS2148EPI61H), 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 ports and checking the bus states

of the pins. 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 series E6000 Emulator Supplementary Information (HS2148EPI61HE).

 To use the emulator internal clock

Select the clock in the emulator station as the system clock (φ) and the subclock

(φw), by using the CLOCK command (emulator command).

 To use the external clock on the user system as the system clock

Select target clock t or t2 with the CLOCK command (emulator command). Supply the

external clock from the user system to the emulator by inputting the external clock from the

EXTAL terminal on the cable head or connecting a crystal oscillator to the EXTAL and

XTAL terminals. For details, refer to section 20, Clock Pulse Generator, in the H8S/2128

Series, H8S/2124 Series, H8S/2128F-ZTAT™ Hardware Manual.

Figure 7 shows the clock oscillator on the user system interface.

R2 270

R1 1 M

HCU04

To E6000

emulator

EXTAL XTAL

Figure 7 Clock Oscillator

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