Connection Example; Connection Ex. Host Soc (On The Same Board)/Int Port, Portable Device/Ext Port - Epson S2R72A11 Application Note

4.

Connection example

Please refer to the following in regard to the 3 system connection examples using S2R72A11. Please refer to
Chapter 5 for detail operation of each connection examples.
In addition, "EP" in the drawing stands for Exposed die pad.
In case where the Portable Device executes the Role Switch and the Bus is floating after the Role Switch, we
recommend pulling down the DP and DM of the Portable Device side (ex. 1MΩ).
4.1 Connection ex. Host SoC (on the same board)/INT port, Portable Device/EXT
port
HVDD
Regulator
HVDD
Host SoC
GPIO XRESET
ENABLE
SDA
I2C
master
SCL
DP
DM
Regulator
VBUS
Figure 4.1.1

Connection ex. Host SoC (on the same board)/INT port, Portable Device/EXT port

The same as the basic system structure shown on Figure 3.2.1.
12
HVDD
ADJ4
ADJ3
S2R72A11
INT_DP
INT_DM
BC
Seiko Epson Corporation
Host SoC board
Slave
address
setting
STAT1
STAT0
EXT_DP
EXT_DM
EP
VSS
Portable
Device
VBUS
DP
DM
S2R72A11 Application Note
(Rev.1.01)