Artesyn RTM ATCA-F140 Installation and Use (July 2014) - Manual (Page 41)

Functional Description
RTM-ATCA-F140 Installation and Use (6806800M97F) 41
4.4.6.2 SFP+ Status Signals
The SFP+ status signals, MOD_ABS, TX_FAULT and LOS, are individually connected to the
corresponding BCM8727 which monitors them. The signals are also connected to the RTM
FPGA to allow fast detection of a loss of signal condition. Refer to
Chapter 4, FPGA, on page 48
for further details.
4.4.6.3 SFP Control Signals
The SFP+ TX_DISABLE signals are individually connected to the corresponding BCM8727 which
drives them under software control.
The RS0 and RS1 rate select signals from each SFP+ are individually connected to the RTM FPGA
that allows them to be controlled by software. Refer to
Chapter 4, FPGA, on page 48 for further
details.
4.4.6.4 PHY Management Interfaces
The BCM8727 provides a single MDC/MDIO management port to access both channels and
allows bit 0 of the PHY address for each channel to be individually programmed, with bits 1 - 4
being common.
Table 4-7 shows the address allocation and management port definition for
each channel.
4.5 10Gbps Fabric Ports
The RTM-ATCA-F140 provides four 10Gbps SFP+ module sites connected to the fabric switch
on the front blade.
Table 4-7 BCM8727 PHY Addressing
PHY
Address
High Bits
Channel Source
PHY
Address
Low Bits
PHY Address Switch Port SFP+ Port
Management
Channel
b1011 1 Base b0 22 BIX_XG1 Base SFP+ 2 BIX_XG_MDC/
MDIO
2 Base b1 23 BIX_XG0 Base SFP+ 1