Technical information

5
Section 4 User Interface Specifications
The user system interface cable incorporates a level conversion circuit supporting a low-voltage
circuit. Accordingly, when connecting the user system to the emulator, pay attention to the signal
delays and the number of FANINs and FANOUTs.
4.1 User System Interface Circuit
The user system interface circuit of the user system interface cable is shown below.
(1) NMI and
RES
74VHCT244
QS3384
47 k
UPVcc
5Vcc
Vcc
Emulator User system
Figure 3 User System Interface Circuit for NMI and
RES
(2) PB8, PA5 to PA2, PD7 to PDØ, PE2, and PEØ
Emulator User system
QS3384
UPVcc
Figure 4 User System Interface Circuit for PB8, PA5 to PA2, PD7 to PDØ, PE2, and PEØ