
194
The user system interface circuits of the emulator (HS7641KCI02H) are shown. Figures 6.8 and
6.9 show the circuits of the H-UDI pin and AUD pin, respectively.
TCK
TRST
TDO
TDI
TDO
JTAG controller (EPF10K10AQC208-3) To user system
TCK
TRST
URESET
RESETP
TDI
74LVT244
74LVT244
74LVT244
22 Ω
22 Ω
22 Ω
4.7 kΩ
3Vcc
3Vcc
74LVT244
TMSTMS
74LVT244
A Y
74LVT125
A Y
Y A
A Y
74LVT244
Y A
A Y
A Y
A Y
Y A
A Y
BRK
ACK
ASEBRKAK
22
4.7 k
22 Ω
22 Ω
3Vcc
22
4.7 k
Figure 6.8 User System Interface Circuit of the H-UDI Pin in the Emulator
(HS7641KCI02H) (Model Name: HS0005KCI04H)
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