Renesas H8S/2158 Informacje Techniczne Pobierz pdf (Strona 11)

9

7. Figure 4.6 shows the interface circuit in the emulator. Use this figure as a

reference to decide the pull-up resistance value.

Emulator control circuit

22 Ω x 5

22 Ω x 2

4.7 kΩ x 7

HD74LV125A

HD74LVTH244

Vcc

11

1

2

4

5

6

3

7

MCU

Vcc

ETCK

ETRST#

RES#

ETMS

ETDI

ETDO

RES#

Vcc

Vcc

3.3 V

H-UDI port

connector

on the user

system

Figure 4.6 Interface Circuit in the Emulator (Reference)

1 2 ... 6 7 8 9 10 11

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