Data Sheet

THUNDERCOMM TurboX™ C40x SoM Datasheet
27
3.3.5 USB Interface
The SoM support USB host and slave. Dual USB port support, one is USB 2.0 high-speed, the other is USB 3.0
super-speed/USB 2.0 high-speed compliant. The USB1 support host mode only.
SS/HS USB1 (3.0/2.0) Interface
Pin Name
PIN Location
Voltage
Type
Description
Notes
USB_SS_TX_M
A10
-
DO
USB 3.0 transmitter differential
pair minus
USB_SS_TX_P
B10
-
DO
USB 3.0 transmitter differential
pair plus
USB_SS_RX_P
A11
-
DI
USB 3.0 receiver differential pair
plus
USB_SS_RX_M
B11
-
DI
USB 3.0 receiver differential pair
minus
USB1_HS_DP
A12
-
IO
USB1 HS data plus
Require
differential
impedance of
90Ω.
USB1_HS_DM
B12
-
IO
USB1 HS data minus
PM_GPIO_12
D3
1.8V
DI
VBUS1 insertion detection
USB0_HS_ID
A20
1.8V
DI
USB0 ID Pin
HS USB0 (2.0) Interface
Pin Name
PIN Location
Voltage
Type
Description
Notes
USB0_HS_ID
B20
1.8V
AI
USB0 ID Pin
USB0_HS_DM
13
-
IO
USB0_HS_DP
14
-
IO
PM_GPIO_06
C4
1.8V
DI
VBUS0 insertion detection
Table 3-6 USB interface definition
3.3.6 PCIe Interface
The SoM support one Peripheral Component Interconnect Express (PCIe) interfaces, which can be used for
general-purpose peripherals.
PCIe Interface
Pin Name
PIN Location
Voltage
Type
Description
Notes
PCIE0_REFCLK_M
A4
-
-
PCIE reference clock output (-)
PCIE0_REFCLK_P
B4
-
-
PCIE reference clock output (+)
PCIE0_RX_M
A9
-
DI
PCIE receiver minus
PCIE0_RX_P
B9
-
DI
PCIE receiver plus
PCIE0_TX_M
11
-
DO
PCIE transmitter minus
PCIE0_TX_P
10
-
DO
PCIE transmitter plus
Table 3-7 PCIe interface definition