Bcm8727 Status; Sfp+ Connection; C Bus; Table 4-6 Sfp+ Connector Pin Assignment - SMART Embedded Computing RTM-ATCA-F140 Series Installation & Use Manual

4.4.5

BCM8727 Status

The PCMULK, PCDRLK, PLOSB and LASI signals from each BCM8727 port are
connected to the RTM FPGA to allow them to be monitored by software. The PLOSB and
LASI signals can also generate an interrupt to the front blade. Refer to
for further details.
4.4.6

SFP+ Connection

The SFP+ module receptacles are designed to support standard SFP+ modules and direct
attach copper SFP+ modules less than 10m in length. The SFP+ cage is backwards
compatible with 1GB optical or copper SFP modules. Refer to the ATCA-F140 Installation
and Use Manual for a list of SFP devices tested with this product. The SFP+ connector
assignment for the 10Gbps serial interface is described in
Table 4-6
Pin
1
2
3
4
5
6
7
8
9
10
2
4.4.6.1 I

C Bus

The SFP+ I
connected to the corresponding BCM8727 which includes a mechanism to allow access to
the port through the PHY management channel.
RTM-ATCA-F140 Series Installation and Use (6806800M97M)
SFP+ Connector Pin Assignment
Signal
GND
TX_FAULT
TX_DISABLE
I2C_SDA
I2C_SCL
MOD_ABS
RS0
LOS
RS1
GND
2
C bus signals (I2C_SDA and I2C_SCL) from each SFP+ site are individually
Functional Description
Table 4-6.
Pin Signal
11 GND
12 RX-
13 RX+
14 GND
15 VCCr (+3.3V)
16 VCCt (+3.3V)
17 GND
18 TX+
19 TX-
20 GND
FPGA on page 67
59