UPD720102 데이터 시트보기 (PDF) - NEC => Renesas Technology

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UPD720102

USB 2.0 HOST CONTROLLER

NEC => Renesas Technology 

μPD720102

2. HOW TO CONNECT TO EXTERNAL ELEMENTS

2.1 Handling Unused Pins

To realize less than 3 ports host controller implementation, appropriate value shall be set to Port No field in EXT1

register. And unused pins shall be connected as shown below.

Pin

DPx

DMx

OCIx

PPONx

Table 2-1. Unused Pin Connection

Direction

I/O

I/O

I

O

Connection Method

No connection (Open)

No connection (Open)

“H” clamp

No connection (Open)

2.2 USB Port Connection

Figure 2–1. USB Downstream Port Connection

μ PD720102

DMn

DPn

from Power switch output

Downstream port

USB A receptacle connector

VBUS

1

D−

2

D+

3

GND

4

10

Data Sheet S17998EJ4V0DS

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