Type-A to
micro-B
Cable
USB Host
T
y
p
e
C
Mi
cr
o
U
S
B
T
y
p
e
C
Mi
cr
o
U
S
B
USB Hub/Device
Configured as
UFP
Micro AB
to Type-A
Receptacle
Configured as
DRP
TUSB320-xA-EVM
TUSB320-xA-EVM
TUSB320-LA-EVM and TUSB320-HA-EVM Configuration Examples
8
SLLU235A – January 2016 – Revised November 2018
Copyright © 2016–2018, Texas Instruments Incorporated
TUSB320-LA-EVM and TUSB320-HA-EVM
describes an example configuration using two TUSB320-xA-EVMs: one configured as DRP, the
other configured as UFP. Refer to
for TUSB320LA/HA UFP EVM configuration.
Figure 4. Example Configuration Using Two TUSB320-xA-EVMs
1. Configure the TUSB320LA/HA DRP DIP switch SW1 as shown in
.
Table 6. TUSB320LA/HA DRP DIP Switch SW1
Configuration
Reference
Designator
SW Control Function
Switch Setting
SW1.1
EN#/EN
ON for
TUSB320LA
OFF for
TUSB320HA
SW1.2
OUT2
OFF
SW1.3
OUT1
OFF
SW1.4
ADDR
OFF
SW1.5
INT
OFF
SW1.6
320_VBUS
Don’t care
SW1.7
PORT_H
OFF
SW1.8
PORT_L
OFF
2. Connect the TUSB320LA/HA DRP EVM to a legacy USB host using a Type-A to micro-B cable via
micro-AB connector (J5) provided on the board. The LEDs D1, D2, and D3 should be lit up by the
VBUS provided by the legacy USB host over the Type-A to micro-B cable connection.
3. Connect the TUSB320LA/HA UFP EVM to the TUSB320LA/HA DFP EVM using a Type-C cable. The
TUSB320LA/HA UFP EVM should be powered by VBUS provided over the Type-C cable connection.
The LED D10 on the TUSB320LA/HA UFP EVM should also light up. Upon the Type-C cable attached
to the TUSB320LA/HA DFP EVM, D4 should light up indicating the ID pin has been driven low from the
TUSB320LA/HA.
4. The USB device plugged into the micro-AB USB receptacle (J6) of the TUSB320LA/HA UFP EVM
should enumerate at USB2 speed: HS, FS, or LS.
NOTE:
Two TUSB320-xA-EVMs can be used for DRP to DRP connection. In this configuration, it is
not recommended to connect the EVM to legacy USB systems as the role cannot be
predicted until both sides enter the attach state. This configuration can be used for
evaluation purposes with 5 V provided via DC IN (J5) on both boards. One of the
TUSB320HA EVMs can be configured to be a preferred SRC or SNK by enabling the
TRY.SRC or TRY.SNK feature via I
2
C access. Refer to the device datasheet for details on
how to enable this feature.
