Functional Modes - Texas Instruments TUSB2E221EVM User Manual

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2.2.2 Functional Modes

The TUSB2E221 has 3 functional modes, I2C-enabled, GPIO, and UART.
header and switch used to configure the TUSB2E221.
2.2.2.1 I2C-Enabled Repeater Mode
In I2C-enabled repeater mode, the EVM can be configured through register settings. EQ0 and EQ1 must be set
high. When set low, the repeater is configured for UART mode and does not forward eUSB or USB packages.
Table 2-5. I2C-enabled Repeater Mode Jumper Configuration
Designator
J7
J12
J19
J20
SNLU346 – MAY 2024
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Figure 2-2. TUSB2E221EVM Configuration Overview
Jumper Position
2-3
2-3
1-2
1-2
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Figure 2-2
Description
EQ1 set low
EQ0 set low
SDA pulled high via 1Kohm resistor
SLC pulled high via 1Kohm resistor
Hardware
show the locations of each
TUSB2E221 Evaluation Module 7