參數(shù)資料
型號: AGL10005-FGG484I
元件分類: FPGA
英文描述: FPGA, 1000000 GATES, 250 MHz, PBGA484
封裝: 13 X 13 MM, 1 MM PITCH, ROHS COMPLIANT, FBGA-144
文件頁數(shù): 24/204頁
文件大?。?/td> 2800K
代理商: AGL10005-FGG484I
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IGLOO Low-Power Flash FPGAs with Flash*Freeze Technology
1- 6
A dvanced v0. 1
In addition, every SRAM block has an embedded FIFO
control unit. The control unit allows the SRAM block to
be configured as a synchronous FIFO without using
additional core VersaTiles. The FIFO width and depth are
programmable. The FIFO also features programmable
Almost Empty (AEMPTY) and Almost Full (AFULL) flags in
addition to the normal Empty and Full flags. The
embedded FIFO control unit contains the counters
necessary for generation of the read and write address
pointers. The embedded SRAM/FIFO blocks can be
cascaded to create larger configurations.
PLL and CCC
IGLOO devices provide designers with very flexible clock
conditioning capabilities. Each member of the IGLOO
family contains six CCCs. One CCC (center west side) has a
PLL. The AGL030 does not have a PLL.
The six CCC blocks are located at the four corners and the
centers of the east and west sides.
All six CCC blocks are usable; the four corner CCCs and
the east CCC allow simple clock delay operations as well
as clock spine access (refer to the "Clock Conditioning
Circuits" section on page 2-14 for more information).
The inputs of the six CCC blocks are accessible from the
FPGA core or from one of several inputs located near the
CCC that have dedicated connections to the CCC block.
The CCC block has these key features:
Wide input frequency range (fIN_CCC) = 1.5 MHz up
to 250 MHz
Output frequency range (fOUT_CCC) = 0.75 MHz up
to 250 MHz
2 programmable delay types for clock skew
minimization
Clock frequency synthesis (for PLL only)
Additional CCC specifications:
Internal phase shift = 0°, 90°, 180°, and 270°.
Output phase shift depends on the output divider
configuration (for PLL only).
Output duty cycle = 50% ± 1.5% or better (for PLL
only)
Low output jitter: worst case < 2.5% × clock period
peak-to-peak period jitter when single global
network used (for PLL only)
Maximum acquisition time is 300 s (for PLL only)
Exceptional tolerance to input period jitter—
allowable input jitter is up to 1.5 ns (for PLL only)
Four
precise
phases;
maximum
misalignment
between adjacent phases of 40 ps × (250 MHz /
fOUT_CCC) (for PLL only)
Global Clocking
IGLOO devices have extensive support for multiple
clocking domains. In addition to the CCC and PLL support
described above, there is a comprehensive global clock
distribution network.
Each VersaTile input and output port has access to nine
VersaNets: six chip (main) and three quadrant global
networks. The VersaNets can be driven by the CCC or
directly accessed from the core via multiplexers (MUXes).
The VersaNets can be used to distribute low-skew clock
signals or for rapid distribution of high fanout nets.
I/Os with Advanced I/O Standards
The IGLOO family of FPGAs features a flexible I/O
structure, supporting a range of voltages (1.5 V, 1.8 V,
2.5 V, and 3.3 V). IGLOO FPGAs support many different
I/O standards—single-ended and differential.
The I/Os are organized into banks, with two or four
banks per device. Refer to Table 2-22 on page 2-47 for
details on I/O bank configuration. The configuration of
these banks determines the I/O standards supported (see
Table 2-22 on page 2-47 for more information).
Each I/O module contains several input, output, and
enable registers (Figure 2-24 on page 2-34). These
registers allow the implementation of the following:
Single-Data-Rate applications
Double-Data-Rate applications—DDR LVDS, BLVDS,
and M-LVDS I/Os for point-to-point communications
71 for more information.
IGLOO banks for the AGL250 device and above support
LVPECL, LVDS, BLVDS, and M-LVDS. BLVDS and M-LVDS
can support up to 20 loads.
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