COMe-cVR6 – User Guide Rev. 1.5
// 38
COMe
SoC USB2
Hub (on Soc port 5)
SoC USB_SS
USB6
-
USB2_6 (Port 3)
USB7
-
USB2_7 (Port 4)
USB-SS RX coupling
USB 3.2 Specification: RX signals may be AC coupled if desired.
COMe Specification: USB SS RX Signals are AC coupled off Module.
AMD Design Guide:
The USB 3.2 interface requires AC-coupling capacitors (330nF) between the transmitter of
one device and the receiver of another device. Carrier Designers should take care about it.
R1505G/R1606G does support USB2/USB_SS2 by default (DDI3 is not supported with R1000
SKUs)
R1505G/R1606G does not support USB_SS3 – USB3 just works as USB 2.0 Port
2.3.27.
SATA
The SATA high-speed storage interface supports two SATA Gen3 ports with transfer rates of up to 6 Gb/s.
Table 43: SATA
COMe Port
GPP Lane
SATA0
GPP 6
SATA1
GPP 7
SATA2
BOM option from GPP 6
SATA3
BOM option GPP 7
2.3.28.
General Purpose IOs
In addition to COMe spec, all GPIs can also be configured as output and all GPOs as inputs.
Table 44: General Purpose IOs
COMe Signal
EC/kCPLD function
GPI0
pio_gpio[0]
GPI1
pio_gpio[1]
GPI2
pio_gpio[2]
GPI3
pio_gpio[3]
GPO0
pio_gpio[4]
GPO1
pio_gpio[5]
GPO2
pio_gpio[6]
GPO3
pio_gpio[7]