Technical information

14
Section 4 Verifying Operation
1. When using the H8/3864 series and H8/3887 series E6000 emulator (HS3880EPI60H and
HS388REPI60H), turn on the emulator according to the procedures described in the H8/3864
series and H8/3887 series E6000 Emulator User's Manual (HS3880EPI60HE and
HS388REPI60HE).
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 H8/3864 series and H8/3887 series E6000 Emulator User's
Manual (HS3880EPI60HE and HS388REPI60HE).
 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
Select external 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 OSC1 terminal, input clock pulses satisfying the specifications
described in the MCU hardware manual. 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 oscillator circuits on the user system interface cable cannot generate external
subclock pulses by using the crystal oscillator connected to the user system.