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PCM-065/phyCORE-i.MX8X System on Module
L-864e.A1
© PHYTEC America LLC, 2021
48
Table 33. UART Connections at the phyCORE-Connector
X1 Pin # Processor Signal
SOM Signal
Type
Level
Processor
Ball
Description
A42
UART0_CTS_B
X_FLEXCAN0_RX
I
3.3V
T22
UART0 Clear to Send
A41
UART0_RTS_B
X_FLEXCAN0_TX
O
3.3V
U25
UART0 Request to Send
A49
UART0_RX
X_UART0_RX
I
3.3V
V28
UART0 Receive Data
A48
UART0_TX
X_UART0_TX
O
3.3V
U23
UART0 Transmit Data
A57
UART1_CTS_B
X_UART1_CTS_B
I
3.3V
G27
UART1 Clear to Send
A58
UART1_RTS_B
X_UART1_RTS_B
O
3.3V
G29
UART1 Request to Send
A59
UART1_RX
X_UART1_RX
I
3.3V
E29
UART1 Receive Data
A60
UART1_TX
X_UART1_TX
O
3.3V
J25
UART1 Transmit Data
A50
UART2_RX
X_UART2_RX
I
3.3V
AD34
UART2 Receive Data
A51
UART2_TX
X_UART2_TX
O
3.3V
AC35
UART2 Transmit Data
C61
M40_UART0_RX
X_SCU_GPIO0_00
I
1.8V
Y22
M4 UART0 Receive Data
C62
M40_UART0_TX
X_SCU_GPIO0_01
O
1.8V
AC25
M4 UART0 Transmit Data
C61
SCU_UART0_RX
X_SCU_GPIO0_00
I
1.8V
Y22
SCU UART0 Receive Data
C62
SCU_UART0_TX
X_SCU_GPIO0_01
O
1.8V
AC25
SCU UART0 Transmit Data
6.10
USB
The phyCORE-i.MX8X SOM provides two Universal Serial Bus ports; one SuperSpeed USB3.0 subsystem
(USB0) and one HighSpeed USB2.0 subsystem (USB1).
USB0 has been specified as both USB 3.0 dual role and USB 2.0 On-The-Go (OTG) compatible. The USB0
controller supports two independent USB cores (1× USB3.0 dual-role, 1× USB2.0 OTG) and includes the PHY
and I/O interfaces to support this operation. The USB 2.0 module is compliant with On-The-Go (OTG)
supplement and the USB 3.0 is compliant with the USB 3.0, and USB 2.0 with OTG supplement specification.
USB1 is a separate, independent USB 2.0 OTG controller which can be used simultaneously with USB 3.0.
The full pinout of the USB 3.0 controller includes the signaling for both USB 3.0 and USB 2.0. This means that
USB0 can be used as either a USB 3.0 port or a USB 2.0 port. USB1 can be used as a USB 2.0 port only and
operates independently. So overall you can either have two USB 2.0 ports, or one USB 3.0 port and one USB
2.0 port.
Table 34. USB0 SS3 Connections at the phyCORE-Connector
X1 Pin # SOM Signal
Type Level
Processor Ball
Description
B7
X_USB3_SS3_TC0
I/O
3.3V
F14
USB3 Super Speed 3 Transmission Control 0
B8
X_USB3_SS3_TC1
I/O
3.3V
H14
USB3 Super Speed 3 Transmission Control 1
B10
X_USB3_SS3_TC2
I/O
3.3V
G15
USB3 Super Speed 3 Transmission Control 2
B11
X_USB3_SS3_TC3
I/O
3.3V
C15
USB3 Super Speed 3 Transmission Control 3
B13
X_USB3_SS3_TX_P
O
Differential
B16
USB3 Super Speed 3 Transmit Data Positive
B14
X_USB3_SS3_TX_N
O
Differential
A15
USB3 Super Speed 3 Transmit Data
Negative
B16
X_USB3_SS3_RX_P
I
Differential
A19
USB3 Super Speed 3 Receive Data Positive
B17
X_USB3_SS3_RX_N
I
Differential
B18
USB3 Super Speed 3 Receive Data Negative
Table 35. USB0 OTG Connections at the phyCORE-Connector
X1 Pin # SOM Signal
Type
Level
Processor Ball Description
A1
X_USB_OTG1_VBUS
A/I
5V
H18
USB OTG1 VBUS input
A6
X_USB_OTG1_ID
A/I
3.3V
G17
USB OTG1 2.0 Dual-Role Device Role Select
A3
X_USB_OTG1_DP
I/O
Differential
D18
USB OTG1 2.0 Differential Data Positive