7 gps connectors, 8 fpga, 1 front-blade interface – Artesyn RTM ATCA-F140 Installation and Use (July 2014) User Manual
Page 48: 7 gps connectors 4.8 fpga, Chapter 4, Chapter 4, gps connectors, Functional description

Functional Description
RTM-ATCA-F140 Installation and Use (6806800M97F)
48
4.7
GPS Connectors
The 1PPS, 10MHz, and TOD inputs for connection to an external GPS receiver are not
supported currently.
4.8
FPGA
The RTM-ATCA-F140 includes a Xilinx XC3S200A-4 FPGA that which performs the following
functions:
Access to control and status signals on SFP, SFP+, and QSFP+
Access to control and status signals on the BCM8727, BCM84754, and BCM84740
Reset handling
SPI Flash programmer and multiplexing for BCM8727, BCM84754, and BCM84740
configuration
UART with selectable outputs for the optional GPS receiver (functionality not initially
implemented)
4.8.1
Front-blade Interface
The RTM-ATCA-F140 includes an SPI interface between the front-blade service processor and
the RTM FPGA. There is also an active low interrupt line to the front-blade to request service.
1
Fabric
b01
1
FIX_P14
Lane 1
2
Fabric
b10
2
FIX_P14
Lane 2
3
Fabric
b11
3
FIX_P14
Lane 3
Table 4-10 BCM84740 PHY Addressing (continued)
PHY
Address
High Bits
Channel
Source
PHY
Address
Low Bits
PHY
Address
Switch Port
QSFP+
Port
Management
Channel