PM7830 Datasheet, PDF (2/2 Pages) PMC-Sierra, Inc – Baseband Radio Interface Controller

PM7830 BRIC Baseband Radio Interface Controller
INTERFACES
• Line side high-speed serial outputs supporting simultaneous
multiple CPRI line rates using a single reference clock input.
• System side parallel Radio Bus Interface (RBI) supporting parallel
output of either:
• Direct CPRI frame payload.
• Unmapped IQ data to/from CPRI frame payload.
• 6-port RMII/SMII Ethernet interface for accessing Fast C&M
channels.
• Multi-channel HDLC serial interface for accessing Slow C&M
channels across all links.
• 16-bit microprocessor interface compatible with both Intel-like and
Freescale-like processors.
BENEFITS
• Provides all necessary functions for implementing CPRI-based
Chain, Ring, Point-to-Point architectures, and more.
• Hitless protection switching, IQ summing, AxC switching & multicast
functions enable single-device central switch/combiner
architectures.
• Software -compatible BRIC and BRIC-2 allow complete CPRI solutions
to be realized quickly and expanded as needed.
• Enables application-specific performance monitoring & OAM
functions using in-band Ethernet/HDLC control & management sub-
channels.
• Applicable for UMTS, CDMA, WiMAX solutions and beyond.
• Industry's most complete and low-risk solution with reuse from
PM8358 QuadPHY 10GX SERDES and PM7831 BRIC-FP CPRI Framer.
APPLICATIONS
Two of the many possible architectural implementations using the
BRIC and BRIC-2 are shown below:
• Central combiner-based CPRI architecture where the BRIC is used as
a termination and switching device for the interconnect of BRIC-2-
based REC and RE CPRI endpoints.
• Chain-based CPRI architecture where the BRIC is used to terminate
one or more chains of remotely-located RE devices.
CENTRAL COMBINER-BASED CPRI ARCHITECTURE
Baseband
Baseband
Baseband
CPRI
Interconnect
Baseband
Processing
IQ Data
BRBCIRCI-2
Switching/Combining (P)
Switching/Combining (W)
BBRCRICI
CPRI
Interconnect
RE
RE
RE
BRBCIRCI-2
IQ Data
RF Chain
Processing
CHAIN-BASED CPRI ARCHITECTURE
REC
Baseband
Processing
IQ Data
BBRCRICI
CPRI
RE
RF Chain
Processing
IQ Data
BRBCIRCI-2
RE
RF Chain
Processing
IQ Data
CPRI
BRBCIRCI-2
RE
RF Chain
Processing
IQ Data
CPRI
BRBCIRCI-2
CPRI
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