XC5VLX220-2FF1760I Xilinx Inc, XC5VLX220-2FF1760I Datasheet - Page 379

• Manufacturer Part Number: XC5VLX220-2FF1760I
• Description: IC FPGA VIRTEX-5 220K 1760FBGA
• Manufacturer: Xilinx Inc
• Series: Virtex™-5 LXr

Specifications of XC5VLX220-2FF1760I

• Number Of Logic Elements/cells: 221184
• Number Of Labs/clbs: 17280
• Total Ram Bits: 7077888
• Number Of I /o: 800
• Voltage - Supply: 0.95 V ~ 1.05 V
• Mounting Type: Surface Mount
• Operating Temperature: -40°C ~ 100°C
• Package / Case: 1760-BBGA, FCBGA
• For Use With: HW-AFX-FF1760-500-G - BOARD DEV VIRTEX 5 FF1760
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Number Of Gates: -

Virtex-5 FPGA User Guide
UG190 (v5.3) May 17, 2010
Timing Characteristics of 8:1 DDR Serialization
Figure 8-18
example, a second OSERDES is required to achieve an 8:1 serialization. The two OSERDES
are connected and configured using the methods described in
page
remaining two bits are connected to D3–D4 of the slave OSERDES.
X-Ref Target - Figure 8-18
Clock Event 1
On the rising edge of CLKDIV, the word ABCDEFGH is driven from the FPGA logic to the
D1–D6 inputs of the master OSERDES and D3–D4 of the slave OSERDES (after some
propagation delay).
Clock Event 2
On the rising edge of CLKDIV, the word ABCDEFGH is sampled into the master and slave
OSERDES from the D1–D6 and D3–D4 inputs, respectively.
Clock Event 3
The data bit A appears at OQ four CLK cycles after ABCDEFGH is sampled into the
OSERDES. This latency is consistent with the
OSERDES latency of four CLK cycles.
Master.D1
Master.D2
Master.D3
Master.D4
Master.D5
Master.D6
Slave.D3
Slave.D4
375. Six of the eight bits are connected to D1–D6 of the master OSERDES while the
CLKDIV
CLK
OQ
Figure 8-18: OSERDES Data Flow and Latency in 8:1 DDR Mode
illustrates the timing of an 8:1 DDR data serialization. In contrast to the 2:1 SDR
Event 1
Clock
www.xilinx.com
Output Parallel-to-Serial Logic Resources (OSERDES)
G
A
B
C
D
E
F
H
Event 2
Clock
Table 8-10
M
N
O
K
L
P
J
I
listing of a 8:1 DDR mode
Event 3
Clock
OSERDES Width Expansion,
A B C D E F G H I
UG190_8_18_100307
Event 4
Clock
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