Artesyn ATCA-9405 Installation and Use (May 2014) - Manual (Page 67)

Packet Processor
ATCA-9405 Installation and Use (6806800M71G) 67
3.10 USB Interface
The CN6880 USB subsystem contains an EHCI host controller, an OHCI host controller, and two
physical USB ports. The USB interface is with USB specification, Revision 1.1 and supports high-
speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps) operation. For more
information refer to the Cavium OCTEON II Hardware Reference Manual.
The USB interface 1 is not used on ATCA-9405.
3.11 UART Interface
The CN6880 provides a dual UART compatible with the PC16550D. Both interfaces consist of
four wires RXD, TXD, RTS, and CTS. The interfaces run in full duplex mode and the baud rates
are software programmable.
The first interface COM0 is connected to the Glue Logic FPGA that routes the interface to either
the front panel connector or to the Terminal server. The connection to the front panel console
connector is implemented via RS-232 transceiver. All four signals (RXD, TXD, RTS, and CTS) are
connected to an RJ45 connector using Cisco DTE pin out assignment. Serial port parameters for
the front panel interface are 9600 baud, 8 data bits, no parity bit, and 1 stop bit.
When serial port COM0 is routed to the Terminal Server for console redirection into the base
network, only TXD and RXD signals are used. IPMC can control serial port routing. Serial port
parameters for this interface are 9600 baud, 8 data bits, no parity bit, and 1 stop bit. For more
information, see
Serial Line Selection on page 139 .
The second interface COM1 (only signals TXD and RXD) is connected to a standard 16-pin
header for debugging purposes.
An assembly option (footprint for a high speed USB switch type FSUSB31K8X) to allow
connection of USB Interface 0 toward ARTM is available. If you require this, then contact the
sales/marketing team.