XC5VSX50T-3FF1136C Xilinx Inc, XC5VSX50T-3FF1136C Datasheet - Page 84

• Manufacturer Part Number: XC5VSX50T-3FF1136C
• Description: IC FPGA VIRTEX-5 50K 1136FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-5 SXTr

Specifications of XC5VSX50T-3FF1136C

• Number Of Logic Elements/cells: 52224
• Number Of Labs/clbs: 4080
• Total Ram Bits: 4866048
• Number Of I /o: 480
• Voltage - Supply: 0.95 V ~ 1.05 V
• Mounting Type: Surface Mount
• Operating Temperature: 0°C ~ 85°C
• Package / Case: 1136-BBGA, FCBGA
• For Use With: HW-V5-ML506-UNI-G - EVALUATION PLATFORM VIRTEX-5HW-AFX-FF1136-500-G - BOARD DEV VIRTEX 5 FF1136
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Chapter 2: Clock Management Technology
DCM Timing Models
X-Ref Target - Figure 2-17
84
CLKFX180
LOCKED
CLK180
CLKDV
CLKFX
CLK90
CLKIN
CLK0
RST
Reset/Lock
The following timing diagrams describe the behavior of the DCM clock outputs under four
different conditions:
1.
2.
3.
4.
In
clocks are stabilized to the desired values, and the LOCKED signal is asserted.
•
•
•
Figure
Reset/Lock
Fixed-Phase Shifting
Variable-Phase Shifting
Status Flags
Prior to Clock Event 1
Prior to clock event 1, the DCM is locked. All clock outputs are in phase with the
correct frequency and behavior.
Clock Event 1
Some time after clock event 1 the reset signal is asserted at the (RST) pin. While reset is
asserted, all clock outputs become a logic zero. The reset signal is an asynchronous
reset. Note: the diagram is not shown to scale. For the DCM to operate properly, the
reset signal must be asserted for at least three CLKIN periods.
Clock Event 2
Clock event 2 occurs a few cycles after reset is asserted and deasserted. At clock event
2, the lock process begins. At time LOCK_DLL, after clock event 2, if no fixed phase
shift was selected then all clock outputs are stable and in phase. LOCKED is also
asserted to signal completion.
2-17, the DCM is already locked. After the reset signal is applied, all output
Figure 2-17: RESET/LOCK Example
1
3 Periods
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2
LOCK
DLL
Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
ug190_2_18_042406