Renesas H8/3814 Series - Manual (Page 20)

Figure 9 shows the system clock oscillator on the user system interface cable and the subclock input
specifications.
14
R2 270
R1 1 M
HCU04
HCU04
To E6000
emulator
OSC1 OSC2
System clock oscillator
Ω
Ω
0.8 Vcc
55 ns max. 55 ns max.
0.8 Vcc
0.3 Vcc
0 V
Vcc
Vcc: User System Vcc
(3.0 V to 5.0 V)
0.3 Vcc
Subclock input specifications
Figure 9 System Clock Oscillator and Subclock Input Specifications
4. Select the MCU type by setting the MCU type switch (SW1) as follows before using the user
system interface cable:
 For the H8/3834 series or H8/3814 series: Turn off the switch (to the 3834 side)
 For the H8/3877 series: Turn on the switch (to the 3876 side).
Figure 10 shows the allowable SW1 setting. Do not use any other setting.
SW1
3834
OFF ON
3876
SW1
H8/3834series,
H8/3814 series H8/3877 series
3834
OFF ON
3876
Figure 10 SW1 Setting