参数资料
型号: ORSO82G5-3FN680C
厂商: Lattice Semiconductor Corporation
文件页数: 67/153页
文件大小: 0K
描述: IC TRANCEIVERS FPSC 680FPBGA
产品变化通告: Product Discontinuation 01/Aug/2011
标准包装: 24
系列: *
Lattice Semiconductor
ORCA ORSO42G5 and ORSO82G5 Data Sheet
20
of differential 0.6 to 2.7 Gbit/s links. At the FPGA/Embedded Core interface, the data are transferred across 32-bit
buses. The SERDES blocks themselves are organized as two blocks. Each of the data paths is identied with a
block and channel identier (i.e., AC, AD, BC, BD or AA,...,BD).
Each channel has a 32-bit TX bus, 32-bit RX bus, a recovered clock, a transmit clock input and a transmit start sig-
nal.
Figure 5. Basic Data Flows - SERDES Only Mode
Figure 6 shows a block diagram of a single channel of the SERDES block. The transmitter section accepts either
scrambled or un-scrambled data at the parallel input port. It also accepts the low-speed reference clock at the REF-
CLK input and uses this clock to synthesize the internal high-speed serial bit clock. The serialized data are avail-
able at the differential CML output terminated in 86 Ω to drive either an optical transmitter, coaxial media or a circuit
board/backplane.
Figure 6. SERDES Functional Block Diagram for One Channel
Transmit (TX) Path
Receive (RX) Path
Cell
Processing
Pseudo-
SONET
Processing
Configurable
ORCA 4E04
FPGA Logic
MUX/DEMUX
and
SERDES
Configurable
as
four
or
eight
data
channels
organized
in
two
SERDES
blocks
User
I/O
TX PLL
SERIAL
Output Control
HDOUT P/N
XCK311
MUX
LDIN[7:0]
HAMP
PE
Data
Rate
TXHR
RX PLL
REFCLK P/N
RWCK
LDOUT[7:0]
PARALLEL
RBC
RXHR
LCKREFN
HDIN P/N
NELB
FELB
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