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Section 4 User Interface Specifications
The user system interface board 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 board is shown below.
(1) NMI and _RES
Emulator User system
HD151015
UVcc
5Vcc
VccB VccA
BA
Figure 3 User System Interface Circuit for NMI and _RES
(2) PE15 to PE0, PC15 to PC0, PB9 to PB0, PA15 to PA0, and PD15 to PD0
Emulator User system
QS3384
QSVcc
Figure 4 User System Interface Circuit for PE15 to PE0, PC15 to PC0, PB9 to PB0,
PA15 to PA0, and PD15 to PD0