User`s manual

Table Of Contents
183
7.7.2 User System Interface Circuits
The interface circuit between the MCU in the emulator and the user system has a signal delay of about 8 ns due
to the user system interface cable and it includes pull-up resistors. Therefore, high-impedance signals will be
pulled up to the high level. When connecting the E6000 emulator to a user system, adjust the user system
hardware to compensate for propagation delays.
Default:
Vcc
User system interface cable
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47
Ω
470 kΩ
Figure 7.9 Default User System Interface Circuit
OSC1 and X1:
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47 Ω
10 k
Vcc
Ω
User system interface cable
Figure 7.10 User System Interface Circuit for OSC1 and X1
PB0/AN0 to PB7/AN7, PC0 to PC3, P50/WKP0/SEG1 to P57/WKP7/SEG8, P60/SEG9 to P67/SEG16,
P70/SEG17 to P77/SEG24, P80/SEG25 to P87/SEG32, P90/SEG33 to P97/SEG40/CL1, and PA0/COM1 to
PA3/COM4:
47 Ω
User system interface cable
Evaluation
chip
Figure 7.11 User System Interface Circuit for PB0/AN0 to PB7/AN7, PC0 to PC3, P50/WKP0/SEG1 to
P57/WKP7/SEG8, P60/SEG9 to P67/SEG16, P70/SEG17 to P77/SEG24, P80/SEG25 to P87/SEG32,
P90/SEG33 to P97/SEG40/CL1, and PA0/COM1 to PA3/COM4
AVcc and AVss:
AVcc
AVss
0.1 Fμ
27 k Ω
User system interface cable
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Figure 7.12 User System Interface Circuit for AVcc and AVss