BCM8727
®
Brief
SUMMARY OF BENEFITS
•
Single-reference clock input enables use of low-cost 156.25
MHz oscillator.
DUAL-CHANNEL 10-G
B
E SFI-
TO
-XAUI™ TRANSCEIVER
WITH
EDC
FEATURES
•
Dual-channel SFI-to-XAUI™ transceiver
•
Integrated microcontroller and AGC with a wide dynamic
range
•
Supports low-cost SFP+ copper twin-ax up to 15m
•
LRM mode supports 300m of Multimode Fiber (MMF),
exceeding the IEEE 802.3aq standard.
•
Supports SFP+ SR, LR, and LRM optical interfaces and up to
15m of direct attached copper
•
Programmable amplitude control on 10G serial transmitter
interface
•
PMD transmit preemphasis for flexible placement of Physical
Layer (PHY)
•
Standard two-wire Broadcom Serial Interface (BSC) support
for external E2, XFP, SFP, SFP+
•
Support for module present detection and configuring of
BCM8727 accordingly
•
MDIO interface compliant to IEEE802.3ae Clause 45 with
extended indirect address register access
•
Multirate 10 GbE and 1 GbE support for legacy interfaces
•
Support for XFP/XFI interfaces
•
Physical Medium Dependent (PMD) interface: serial 10.3125
Gbps CML
APPLICATIONS
•
High-density Ethernet Switching and Routing Platforms
•
Next-generation Blade Servers
•
SFP+ optical SR, LR, and LRM modules
•
SFP+ copper twin-ax
•
PCS 64B/66B scrambler/descrambler
•
XGXS 8B/10B error detection ENDEC
•
XAUI link synchronization/deskew
•
4-lane XAUI interface (3.125 Gbps)
•
Built-In Self-Test (BIST) on 10G serial and XAUI interfaces
•
Power dissipation: 2.4W
•
Core supply—1.0V, I/O—3.3V
•
Small 19 mm x 19 mm BGA package, 1-mm ball pitch
BCM8727 Functional Block Diagram
BCM8727
XAUI Interface 1
PCS/PMA
XGXS
XGXS
LRM-
EDC
SFI 1
SFP+
10.3125
Gbps
MAC/
Switch
RS
XAUI Interface 2
MDC MDIO
Management
Interface
LRM-
EDC
SFI 2
SFP+
10.3125
Gbps
BOARDCOM [ Broadcom Corporation. ]
