4.12.1 USB 3.1 Interface
USB Super speed signals from SERDES3 port of J7E21E SoC are connected to USB Type C connector
(2012670005). A CC and PD controller Mfr. Part# TUSB321RWBR and PTPS25830QWRHBTQ1 are used for
CC detect and power delivery. This CC controller supports Dual Role Port (DRP), Downstream Facing Port
(DFP) and Upstream Facing Port (UFP) modes, In CP board DRP, DFP and UFP modes can be selected
through an EVM Configuration dip switch (SW3). The Dip switch settings are given in
Table 6.
Figure 4-26. USB3.1 Type C Interface
The AC coupling capacitors are provided on TX lines of Super speed signals, and common mode filters
(MCZ1210DH900L2TA0G) are used at all the differential pairs. ESD protection diodes are provided on all
required USB Signals (TPD1E05U06DPY for super speed signals and TPD2E2U06-Q1 for CC pins). TUSB321‘s
Current Mode pin is pulled high through 499K resistor to set the Maximum Current Iout to 1.5A.
Iout (max)
= 1.5A
Figure 4-27. Type C Power Delivery Current Settings
The control signals for Powerdown and VBUS enable are given from I2C GPIO Expander2 (I2C add: 0x22 - P03)
and the SoC DRVVBUS, respectively.
J721E EVM Hardware Architecture
SPRUIS4D – MAY 2020 – REVISED MARCH 2022
Jacinto7 J721E/DRA829/TDA4VM Evaluation Module (EVM)
59
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