PM7830 BRIC
Baseband Radio Interface Controller
Advance
Product Brief
PRODUCT OVERVIEW
The PM7830 Baseband to Radio Interface Controller (BRIC) is a full-
featured 6-port termination device that fully supports the CPRI specifi-
cation for wireless base station interconnection. The BRIC provides
integrated rate-adaptive SERDES links along with CPRI framing,
mapping, switching, and combining functions.
When used in conjunction with the 2-port PM7832 BRIC-2, the BRIC
and BRIC-2 can be used to flexibly create scalable CPRI-compliant
distributed architectures.
•
Supports up to 6 serial channels running independently at CPRI line
rates from 614.4 Mbit/s to 2457.6 Mbit/s with 8B/10B-encoded
data.
•
Supports up to 6 parallel Radio Bus Interfaces (RBIs) for output of
user data.
•
Supports CPRI start-up sequence and link-rate auto-negotiation for
both REC and RE operating modes.
•
Supports traffic switching at the CPRI Antenna Carrier (AxC) level.
•
Supports IQ summing.
•
Supports multiplexing and termination of control and
PRODUCT HIGHLIGHTS
•
Operates in all of the following Baseband-to-RF interconnect
synchronization sub-channels:
•
•
Up to 6 Ethernet Fast C&M channels.
Up to 6 HDLC Slow C&M channels.
topologies:
•
•
•
•
•
•
•
Measures round-trip delay on each CPRI link with an accuracy of
Local interconnect using a central combiner/distributor topology.
Local interconnect using a full mesh topology.
Remote interconnect using a point-to-point (P2P) star topology.
Remote interconnect using a tree and branch topology.
Remote interconnect using a chain topology.
Remote interconnect using a ring topology.
±1 ns:
•
Provides programmable delay insertion to meet CPRI delay
calibration requirements.
•
Supports serial line protection switching.
•
Supports configuration, control, monitoring and test capability on a
per-channel basis.
BLOCK DIAGRAM
Clock
Synthesis
Unit
(CSU)
MPIF
SYNC HDLC
6 x RMII/SMII
JTAG
Microprocessor
Interface
(MPIF)
Synchronization
& HDLC
Processor
(SCHP)
JTAG
Ctrl. & Mgmt.
Processor
(CMP)
6 x Tx Serial
Link Data
6 x Rx Serial
Link Data
Rate Adaptive
SERDES
Radio Frame Mapper
(RMAP)
Radio Frame
Demapper (RDMP)
6 x Parallel
Radio Bus
Interface
(RBI)
Link #0
Link #1
Link #2
Link #3
Link #4
Link #5
Delay Calculator
Crossbar With Summing (XCSUM)
PMC-2051672, Issue 1
© Copyright PMC-Sierra, Inc. 2005
All rights reserved. Proprietary and Confidential to PMC-Sierra, Inc. and for its customers’ internal use.
PMC [ PMC-SIERRA, INC ]
