EP1SGX25DF1020C6 Altera, EP1SGX25DF1020C6 Datasheet - Page 65
EP1SGX25DF1020C6
Manufacturer Part Number
EP1SGX25DF1020C6
Description
IC STRATIX GX FPGA 25K 1020-FBGA
Manufacturer
Altera
Series
Stratix® GXr
Datasheet
1.EP1SGX10CF672C7N.pdf
(272 pages)
Specifications of EP1SGX25DF1020C6
Number Of Logic Elements/cells
25660
Number Of Labs/clbs
2566
Total Ram Bits
1944576
Number Of I /o
607
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
1020-FBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Gates
-
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Altera Corporation
August 2005
To manage the alignment procedure, a state machine should be built in
the FPGA logic array to generate the realignment signal. The following
guidelines outline the requirements for this state machine.
■
■
■
■
The design must include an input synchronizing register to ensure
that data is synchronized to the ×W/J clock.
After the state machine, use another synchronizing register to
capture the generated rx_channel_data_align signal and
synchronize it to the ×W/J clock.
Because the skew in the path from the output of this synchronizing
register to the PLL is undefined, the state machine must generate a
pulse that is high for two W/J clock periods.
To guarantee the state machine does not incorrectly generate
multiple rx_channel_data_align pulses to shift a single bit, the
state machine must hold the rx_channel_data_align signal low
for at least three ×1 clock periods between pulses.
Source-Synchronous Signaling With DPA
Stratix GX Device Handbook, Volume 1
3–15
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