Texas Instruments TUSB217AEVM-BC, User Manual

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3 TUSB217AEVM-BC Kit Contents
This EVM kit should contain the following items:
• TUSB217AEVM-BC board
• This user’s manual
4 EVM Configuration
4.1 Setting EVM Jumpers
The TUSB217AEVM-BC has two 3 × 3 headers and a 6 × 2 header in each board partition to facilitate
configuration changes.
The BOOST and RX_SEN 3 × 3 headers are arranged to allow for all possible device configurations, including
connecting RX_SEN to an LED so that the ENA_HS status output can be viewed easily. The corner pins of the 3
× 3 headers are not connected.
The 6 × 2 header adds the ability to connect onboard pullups to the SDA and SCL pins to support I
2
C operation.
If I
2
C mode is not needed, the SCL/CD pin can be connected to an LED so the CD status can be easily checked.
Also, the 6 × 2 header provides connections for ground and to supply power manually to the EVM. In addition,
the header adds the ability to enable CDP and DCP modes on the TUSB217A.
Table 4-1. 6 × 2 Configuration Header Pinout
Row 1 Row 2
VCC_EXT_Px -EVM External Power Input
If used, the onboard 0-Ω resistor between VCC_US_Px and
VCC_EXT_Px must be removed.
SW_VCC_Px - 3.3-V Power for I
2
C Interface.
Provided by an onboard regulator.
SDA_Px - I
2
C Serial Data to TUSB217A
4.7-kΩ I
2
C pullup - can be jumpered to SDA_Px. To enable I
2
C
mode, the pullups on both SDA and SCL must be connected at
power on or after a reset.
SCL/CD_Px - I
2
C Serial Clock or Connect Detect Output to
TUSB217A
4.7-kΩ I
2
C pullup - can be jumpered to SCL/CD_Px.
To enable I
2
C mode, the pullups on both SDA and SCL must be
connected at power on or after a reset.
CD_Px - Connect Detect LED. The LED can be jumpered to SCL/
CD_Px so USB connection status can be easily determined.
GND
CDP_DCP- BC 1.2 Mode configuration to TUSB217A.
Jumpering this pin to GND enables DCP mode. CDP is enabled by
internal pullup.
GND
GND GND
Changing jumper settings without a complete understanding of the result is not recommended. Configuration
inputs are only read by the TUSB217A during power on reset or after de-asserting the RSTN pin by pressing
the provided onboard reset button (SW1, SW2, SW3). Changing settings while the EVM is powered on has no
effect. Refer to the device data sheet for detailed pin descriptions and functionality along with EVM schematic for
additional information.
Table 4-2. 3 × 3 Boost Header
No Connect 3.6 kΩ to GND No Connect
1.8 kΩ to GND BOOST to TUSB217A GND
No Connect 0 Ω to GND No Connect
BOOST jumper settings as defined in Table 4-2 .
1. Center pin to the bottom position sets BOOST Level 0
2. Center pin to the left position sets BOOST Level 1
3. Center pin to the top position sets BOOST Level 2
4. No connect of the center pin sets BOOST Level 3
The right position of the BOOST jumper is short to GND.
www.ti.com TUSB217AEVM-BC Kit Contents
SLLU327 – MAY 2020
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