NXP Semiconductors QorIQ LS1028A Reference Manual page 27

USB2_D_[P,M]
USB2_TX_[P,M]
USB2_RX_[P,M]
USB2_VBUS
USB2_PWRFAULT
USB2
USB2_RESREF
USB2_ID
USB2_DRVVBUS
LS1028
USB1_DP,DM
USB1_TXP,TXM
USB1_RXP,RXM
USB1_VBUS
USB1_PWRFAULT
USB1
USB1_DRVVBUS
USB1_RESREF
USB1_ID
The PTN5150A (from NXP) is a small low-power configuration channel logic chip that
detects (through CC1 and CC2 pins) and indicates to the USB controller (through
USB2_ID signal) if the USB2 Type C connector is configured as a device or host. The
PTN5150A is configured to operate the USB3 Type C port in DFP mode with default
USB current capability (0.5 A / 0.9 A). To support higher current on the Type C (USB2)
port, the hardware configuration of PTN5150 and NX5P3090UK VBUS switch should be
changed. Refer to the device datasheet for more information.
The USBx_DRVVBUS and USBx_PWRFAULT pins of each USB controller are
connected to a programmable-current USB switch, NX5P3090UK (from NXP), for
individual port management. The USB switch is powered from +5 V USB power supply.
To indicate power fault conditions, the USB switch sends PWRFAULT signals to the
QorIQ LS1028A Reference Design Board Reference Manual, Rev. A, 02/2018
NXP Semiconductors
5V0
200ohm
90W diff. imp.
<=2A
5V0
200ohm
NX5P3090
10
Figure 2-7. USB architecture
Confidential Proprietary
Chapter 2 LS1028ARDB Functional Description
90W diff. imp.
HS
Mux
CBTU020 43
<=2A
"USB2"
NX5P3090
EXT_SEL
USB2_ID
PTN5150A
CON_DET
VBUS_EN
CPLD
USB2_DRVVBUS
USB
3.0
Type-A
"USB1"
TX1_[P,M]
USB
TX2_[P,M]
type C
RX1_[P,M]
RX2_[P,M]
USB1_SEL
CC1
CC2
3.0
27