XC4VFX20-11FFG672C Xilinx Inc, XC4VFX20-11FFG672C Datasheet - Page 179
XC4VFX20-11FFG672C
Manufacturer Part Number
XC4VFX20-11FFG672C
Description
IC FPGA VIRTEX-4 FX 20K 672-FBGA
Manufacturer
Xilinx Inc
Series
Virtex™-4r
Specifications of XC4VFX20-11FFG672C
Number Of Logic Elements/cells
19224
Number Of Labs/clbs
2136
Total Ram Bits
1253376
Number Of I /o
320
Voltage - Supply
1.14 V ~ 1.26 V
Mounting Type
Surface Mount
Operating Temperature
0°C ~ 85°C
Package / Case
672-BBGA, FCBGA
For Use With
HW-V4-ML405-UNI-G - EVALUATION PLATFORM VIRTEX-4
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Number Of Gates
-
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Part Number:
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Virtex-4 FPGA User Guide
UG070 (v2.6) December 1, 2008
Block RAM ECC Primitive
Block RAM ECC Port Description
R
Figure 4-35
Table 4-17
Table 4-17: Block RAM ECC Port Names and Descriptions
Notes:
1. Hamming code implemented in the block RAM ECC logic detects one of three conditions: no
WRADDR<8:0>
STATUS<1:0>
RDADDR<8:0>
detectable error, single-bit error detected and corrected on DO (but not corrected in the memory), and
double-bit error detected without correction. The result of STATUS<1:0> indicates these three
conditions.
Port Name
DO<63:0>
DI<63:0>
WRCLK
RDCLK
WREN
RDEN
SSR
lists and describes the block RAM ECC I/O port names.
shows RAMB32_S64_ECC, the block RAM ECC primitive.
Figure 4-35: RAMB32_S64_ECC: Block RAM ECC Primitive
(1)
Direction
Output
Output
Input
Input
Input
Input
Input
Input
Input
Input
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DI<63:0>
WRADDR<8:0>
RDADDR<8:0>
WREN
RDEN
S S R
WRCLK
RDCLK
Data input bus
Write address bus
Read address bus
Write enable. When WREN = 1, data will be written into
memory. When WREN = 0, write is disabled
Read enable. When RDEN = 1, data will be read from
memory. When RDEN = 0, read is disabled
Not supported when using the block RAM ECC primitive.
Always connect to GND.
Clock for write operations
Clock for read operations
Data output bus
Error status bus
RAMB32_S64_ECC
Built-in Block RAM Error Correction Code
STATUS<1:0>
DO<63:0>
Signal Description
ug070_4_ECC_022204
179
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