XC2V1500-4BG575I Xilinx Inc, XC2V1500-4BG575I Datasheet - Page 39
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XC2V1500-4BG575I
Manufacturer Part Number
XC2V1500-4BG575I
Description
IC FPGA VIRTEX-II 575PBGA
Manufacturer
Xilinx Inc
Series
Virtex™-IIr
Datasheet
1.XC2V250-4FGG256C.pdf
(318 pages)
Specifications of XC2V1500-4BG575I
Number Of Labs/clbs
1920
Total Ram Bits
884736
Number Of I /o
392
Number Of Gates
1500000
Voltage - Supply
1.425 V ~ 1.575 V
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 100°C
Package / Case
575-BBGA
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Number Of Logic Elements/cells
-
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Manufacturer
Quantity
Price
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Part Number:
XC2V1500-4BG575I
Manufacturer:
XILINX
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Table 22
variable mode.
Table 22: Fine-Phase Shifting Control Pins
Two separate components of the phase shift range must be
understood:
•
•
The
equation:
The full range of this attribute is always -255 to +255, but its
practical range varies with CLKIN frequency, as constrained
by the
the total delay achievable by the phase shift delay line. Total
delay is a function of the number of delay taps used in the
circuit. Across process, voltage, and temperature, this abso-
lute range is guaranteed to be as specified under
ing Parameters
Absolute range (fixed mode) = ±
Absolute range (variable mode) = ±
Table 23: DCM Frequency Ranges
DS031-2 (v3.5) November 5, 2007
Product Specification
PSINCDEC
PSEN
PSCLK
PSDONE
CLK0, CLK180
CLK90, CLK270
CLK2X, CLK2X180
CLKDV
CLKFX, CLKFX180
Control Pin
PHASE_SHIFT
FINE_SHIFT_RANGE
Phase Shift (ns) = (
PHASE_SHIFT
Output Clock
FINE_SHIFT_RANGE
lists fine-phase shifting control pins, when used in
R
CLKOUT_PHASE_SHIFT
= NONE
CLKOUT_PHASE_SHIFT
= FIXED
CLKOUT_PHASE_SHIFT
= VARIABLE
in Module 3.
Direction
attribute range
attribute is the numerator in the following
out
in
in
in
PHASE_SHIFT
DCM timing parameter range
CLKIN_FREQ_FX_LF
CLKIN_FREQ_DLL_LF
CLKIN_FREQ_DLL_LF
CLKIN_FREQ_DLL_LF
CLKIN_FREQ_DLL_LF
component, which represents
CLKIN Input
CLKIN
CLKFB
CLKIN
CLKFB
CLKIN
Increment or decrement
CLKFB
Active when completed
FINE_SHIFT_RANGE
Enable ± phase shift
Clock for phase shift
FINE_SHIFT_RANGE
Low-Frequency Mode
/256) * PERIOD
Function
Figure 46: Fine-Phase Shifting Effects
(PS/256) x PERIOD CLKIN
CLKOUT_FREQ_1X_LF
CLKOUT_FREQ_1X_LF
CLKOUT_FREQ_2X_LF
CLKOUT_FREQ_DV_LF
CLKOUT_FREQ_FX_LF
DCM Tim-
(PS negative)
(PS/256) x PERIOD CLKIN
CLKIN
www.xilinx.com
CLK Output
(PS negative)
/2
The reason for the difference between fixed and variable
modes is as follows. For variable mode to allow symmetric,
dynamic sweeps from -255/256 to +255/256, the DCM sets
the "zero phase skew" point as the middle of the delay line,
thus dividing the total delay line range in half. In fixed mode,
since the
ration, the entire delay line is available for insertion into
either the CLKIN or CLKFB path (to create either positive or
negative skew).
Taking both of these components into consideration, the fol-
lowing are some usage examples:
•
•
•
Operating Modes
The frequency ranges of DCM input and output clocks
depend
low-frequency mode or high-frequency mode, according to
Table
teristics
CLK270 outputs are not available in high-frequency mode.
High or low-frequency mode is selected by an attribute.
If PERIOD
PHASE_SHIFT in
variable mode it is limited to
If PERIOD
PHASE_SHIFT in
variable mode it is limited to
If PERIOD
PHASE_SHIFT
23. (For actual values, see
Virtex-II Platform FPGAs: Functional Description
in Module 3). The CLK2X, CLK2X180, CLK90, and
PHASE_SHIFT
on
CLKIN_FREQ_DLL_HF
CLKIN_FREQ_DLL_HF
CLKIN_FREQ_FX_HF
(PS/256) x PERIOD CLKIN
CLKIN
CLKIN
CLKIN
CLKIN Input
the
(PS positive)
(PS/256) x PERIOD CLKIN
is limited to
(PS positive)
NA
NA
= 2 *
=
≤ 0.5 *
fixed mode is limited to
fixed mode is limited to
operating
High-Frequency Mode
FINE_SHIFT_RANGE
value never changes after configu-
FINE_SHIFT_RANGE
FINE_SHIFT_RANGE
±
255 in either mode.
±
±
Virtex-II Switching Charac-
mode
64.
128.
CLKOUT_FREQ_1X_HF
CLKOUT_FREQ_DV_HF
CLKOUT_FREQ_FX_HF
DS031_48_101201
CLK Output
specified,
, then
±
±
NA
NA
, then
128, and in
255, and in
Module 2 of 4
, then
either
31
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