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Section 3 user system interface circuit – Renesas H8/36109 User Manual

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Section 3 User System Interface Circuit

Switches, protection circuits, and termination circuits are provided for this expansion I/O board
and used to connect signals to the user system interface cable. Figure 3.1 shows the user system
interface signal circuit.

E6000 (HS3664EPI61H or HS3664EPI62H)

H8/3664

HS36109EIO61H

H8/36109

User system
interface cable

Ports D, E, F, G, and H

Vcc

47

Ω

47 k

Ω

Evaluation chip

Figure 3.1 User System Interface Signal Circuit (Ports D, E, F, G, and H)