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Tsi620 Evaluation Board User Manual
60D7000_MA001_03
Intergrated Device Technology
www.idt.com
Figure 1: Baseband Processing Data Flow
The major baseband processing engine on the evaluation board is a TI triple-core DSP TCI6488 with
3-GHz processing capability. Altera’s Stratix3 FPGA with up to 150K LE functions as the DSP
accelerator of the baseband data processing. Two antenna OBSAI/CPRI links provide the interface to
an RF module through SFP optical transceiver over optical cable. The low-speed OBSAI link with
780 Mbps is directly connected to the FPGA, and another high-speed OBSAI with up to 3 Gbps is fed
directly into the DSP antenna interface. One OBSAI/CPRI link is also supported between the AMC
backplane at port 17 and the DSP antenna interface.
The Tsi620 functions as the central traffic hub to provide high-bandwidth data flow of the AMC
backplane, FPGA, DSP, and PrPMC module. The processed data can be transmitted to the AMC sRIO
backplane through the Tsi620 sRIO switch. Both upstream and downstream data flow can be
implemented. The data transfer between the DSP and FPGA is through the Tsi620 using two 1x sRIO
links so that the FPGA can function as a powerful accelerator to assist DSP baseband processing. The
on-board PrPMC connector, which can function as the system management host and Ethernet
networking interface, supports all standard PrPMC modules.
A
M
C
F
inger
C
o
nnec
to
r
Tsi620
SRIO
Switch
SFP
Cage
SFP
Cage
TCI6488
DSP
BB Processing
Stratix3
FPGA
BB Processing
PrPMC Connector
AMC Vertical Connector
DDR2 256MB
x4 SRIO
PCI 32b/66M
‘XGMII
DDR2 32b/614M
x2 SRIO
RJ45
x1 SGMII
1000BaseT
1x OBSAI/CPRI
1x OBSAI/CPRI
768Mb-BW
3Gb-BW
10Gb-BW
5Gb-BW
10Gb-BW
1Gb-BW
10Gb-BW
PowerPC
Processor
RF
Module
O
BSA
I/C
PR
I
x4
RJ45
4x
768Mb-
B
W
RJ45
x4 SRIO
x1 SGMII
1x OBSAI/CPRI
3Gb-BW
RJ45
100BaseT
x1 MII