Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 76)

Functional Description
ATCA-8310 Installation and Use (6806800M72E) 76
4.2.1.7 Freescale P4080 Ethernet
The Freescale P4080 provides two XAUI interfaces and eight 1Gbps Ethernet interfaces which
can be used alternatively. On the ATCA-8310, one XAUI interface is used to connect to the
switch. The two 1G interfaces are routed to the switch device Table 6: SERDES. .
4.2.1.8 Dual UART
The Freescale P4080 provides a dual UART compatible with 16450 and the PC16550D UARTs.
Both interfaces consist of four wires each: RXD, TXD, RTS and CTS. Both serial ports of the
Freescale P4080 are routed to the Glue Logic FPGA. Only the TXD and RXD signals are used for
this interface.
The serial port parameters for this port are 9600 baud, 8 data bits, no parity, 1 stop bit.
4.2.1.9 I2C Interface
The Freescale P4080 includes a dual I2C controller. Both open-drain two-wire interfaces
provide multiple-master and master-slave I2C mode support. I2C bus 0 is used to connect to a
boot sequencer memory and the SPD PROMs of the DDR3. I2C bus 1 is connected to an
onboard RTC (DS1337).
Table 4-2 P4080 I2C Bus Assignment
Address Bus Component
0x5C 0 ISL90727
0x7C 0 ISL9072x
0xA0 0 Parameter PROM
0xA2 / 0x62 / 0x32 0 DIMM1 Memory module SPD PROM / SPD-Fuse / Temp Sensor
0xA4 / 0x64 / 0x34 0 DIMM2 Memory module SPD PROM / SPD-Fuse / Temp sensor
0xB0 0 RTC
0xA0 1 SRIO EEPROM
0x60 1 SRIO Switch