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14
Section 4 Verifying Operation
1. When using the H8/3802 group E6000 emulator (HS3800EPI60H), turn on the emulator
according to the procedures described in the H8/3802 Group E6000 Emulator User's Manual
(HS3800EPI60HE).
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:
an emulator internal clock and an external clock on the user system, for the MCU clock and
subclock. For details, refer to the H8/3802 Group E6000 Emulator User's Manual
(HS3800EPI60HE).
To use the emulator internal clock
Select the clock in the emulator station as the system clock (
φ
) and the subclock
(
φ
w), by using the CLOCK command (emulator command).
To use the external clock on the user system as the system clock
Select target clock 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 OSC1
terminal on the cable head or connecting a crystal oscillator to the OSC1 and OSC2
terminals. When a crystal oscillator is inserted into the OSC1 and OSC2 terminals for the
system clock, the clock is generated by the oscillator circuits shown in figure 9. To input
an external clock from the user system, input clock pulses satisfying the specifications
described in the MCU hardware manual into the OSC1 terminal. The system clock (
φ
)
frequency is half of the external clock frequency.
To use the external clock on the user system as the subclock
Select target clock sub t with the CLOCK command (emulator command). Supply the
external clock from the user system to the emulator. To input an external subclock from
the user system, input clock pulses satisfying the specifications shown in figure 9 into the
X1 terminal. The input clock must be fixed to 5 V as shown in figure 9, and must not be
dependent on the user system Vcc. The oscillator circuits on the user system interface
cable cannot generate external subclock pulses by using the crystal oscillator connected to
the user system.
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