Texas Instruments TUSB320, Руководство пользователя

Страница: 5 / 15

USB Host
T
y
p
e
C
Mi
cr
o
U
S
B
T
y
p
e
C
TUSB320 EVM
Mi
cr
o
U
S
B USB Hub/Device
Configured as
UFP
Type-A to
micro-B
Cable
Micro AB to
Type-A
Receptacle
HD3SS2522 EVM
Configured as
DRP
www.ti.com
TUSB320 EVM Configuration Examples
3 TUSB320 EVM Configuration Examples
This section provides different configuration examples of the TUSB320 EVM: DRP, DFP or UFP operation.
The PORT pins and the I2C must be programmed for the corresponding mode of operation. No external 5-
V DC IN is needed unless the board is to operate standalone without any connections to the USB
upstream or downstream port.
3.1 UFP Operation
The board can be configured to operate in UFP mode using the PORT pin on the board or I2C register
setting. If the PORT pin is to be used, SW1.8 must be switched ON and the Mode_Select bits at addr0x0A
bit 5:4 must be set to 00b. The Mode_Select is 00b by default so there is no need to re-program unless it
has been reconfigured for other modes of operation.
Figure 1 describes an example configuration using HD3SS2522 and TUSB320 EVMs. The HD3SS2522 is
a TI’s DFP CC controller compliant to USB Type-C spec v1.1.
Figure 1. Example Configuration Using HD3SS2522 and TUSB320 EVMs
1. TUSB320 UFP: Configure the DIP switches as shown in Table 3 .
Table 3. TUSB320 UFP DIP Switch SW1 Settings
Reference Designator SW Control Function Switch Setting
SW1.1 EN# ON
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 ON
2. Connect the HD3SS2522 EVM to a USB host.
3. Connect TUSB320 to the HD3SS2522 using a Type-C Cable. VBUS should be provided over the
Type-C cable connection. LED D10 should illuminate on the TUSB320 board. D3 and D4 should
illuminate on the HD3S2522 indicating an UFP connection. Please refer to the HD3SS2522 users
manual (
SLLU215 ) for the details of the HD3SS2522 EVM operation.
4. USB devices plugged into the Micro AB USB receptacle(J6) of the TUSB320 UFP EVM should
enumerate at USB2 speed: HS, FS, or LS.
5 SLLU222B – June 2015 – Revised October 2015 TUSB320 Evaluation Module
Submit Documentation Feedback
Copyright © 2015, Texas Instruments Incorporated