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參數(shù)資料
| 型號： | XCV405E-6FG676C |
| 廠商： | Xilinx Inc |
| 文件頁數(shù)： | 40/118頁 |
| 文件大小： | 0K |
| 描述： | IC FPGA 1.8V C-TEMP 676-FBGA |
| 產(chǎn)品變化通告： | FPGA Family Discontinuation 18/Apr/2011 |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Virtex®-E EM |
| LAB/CLB數(shù)： | 2400 |
| 邏輯元件/單元數(shù)： | 10800 |
| RAM 位總計： | 573440 |
| 輸入/輸出數(shù)： | 404 |
| 門數(shù)： | 129600 |
| 電源電壓： | 1.71 V ~ 1.89 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 676-BGA |
| 供應(yīng)商設(shè)備封裝： | 676-FBGA（27x27） |
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Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays
Module 2 of 4
DS025-2 (v3.0) March 21, 2014
24
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
Board-level de-skew is not required for low-fanout clock net-
works. It is recommended for systems that have fanout lim-
itations on the clock network, or if the clock distribution chip
cannot handle the load.
Do not use the DLL output clock signals until after activation
of the LOCKED signal. Prior to the activation of the
LOCKED signal, the DLL output clocks are not valid and
can exhibit glitches, spikes, or other spurious movement.
The dll_mirror_1 files in the xapp132.zip file show the VHDL
and Verilog implementation of this circuit.
De-Skew of Clock and Its 2x Multiple
The circuit shown in Figure 29 implements a 2x clock multi-
plier and also uses the CLK0 clock output with zero ns skew
between registers on the same chip. A clock divider circuit
could alternatively be implemented using similar connec-
tions.
Because any single DLL can access only two BUFGs at
most, any additional output clock signals must be routed
from the DLL in this example on the high speed backbone
routing.
The dll_2x files in the xapp132.zip file show the VHDL and
Verilog implementation of this circuit.
Virtex-E 4x Clock
Two DLLs located in the same half-edge (top-left, top-right,
bottom-right, bottom-left) can be connected together, with-
out using a BUFG between the CLKDLLs, to generate a 4x
clock as shown in Figure 30. Virtex-E devices, like the Virtex
devices, have four clock networks that are available for inter-
nal de-skewing of the clock. Each of the eight DLLs have
access to two of the four clock networks. Although all the
DLLs can be used for internal de-skewing, the presence of
two GCLKBUFs on the top and two on the bottom indicate
that only two of the four DLLs on the top (and two of the four
DLLs on the bottom) can be used for this purpose.
The dll_4xe files in the xapp 32.zip file show the DLL imple-
mentation in Verilog for Virtex-E devices. These files can be
found at:
Using Block SelectRAM+ Features
The Virtex FPGA Series provides dedicated blocks of
on-chip, true dual-read/write port synchronous RAM, with
4096 memory cells. Each port of the block SelectRAM+
memory can be independently configured as a read/write
port, a read port, a write port, and can be configured to a
specific data width. block SelectRAM+ memory offers new
capabilities, allowing FPGA designers to simplify designs.
Figure 28: DLL De-skew of Board Level Clock
Figure 29: DLL De-skew of Clock and 2x Multiple
ds022_029_121099
CLK0
CLK90
CLK180
CLK270
CLK2X
CLKDV
LOCKED
CLKIN
CLKFB
RST
CLKDLL
OBUF
IBUFG
CLK0
CLK90
CLK180
CLK270
CLK2X
CLKDV
LOCKED
CLKIN
CLKFB
RST
CLKDLL
BUFG
IBUFG
Non-Virtex-E Chip
Other Non_Virtex-E Chips
Virtex-E Device
CLK0
CLK90
CLK180
CLK270
CLK2X
CLKDV
LOCKED
CLKIN
CLKFB
RST
ds022_030_121099
CLKDLL
BUFG
IBUFG
IBUF
OBUF
BUFG
Figure 30: DLL Generation of 4x Clock in Virtex-E
Devices
ds022_031_041901
RST
CLKFB
CLKIN
CLKDLL-S
LOCKED
CLKDV
INV
BUFG
OBUF
IBUFG
CLK2X
CLK0
CLK90
CLK180
CLK270
RST
CLKFB
CLKIN
CLKDLL-P
LOCKED
CLKDV
CLK2X
CLK0
CLK90
CLK180
CLK270
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| XCV405E-6FG676I | 功能描述:IC FPGA 1.8V 676-BGA RoHS:否 類別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場可編程門陣列） 系列:Virtex®-E EM 產(chǎn)品變化通告:Step Intro and Pkg Change 11/March/2008 標(biāo)準(zhǔn)包裝:1 系列:Virtex®-5 SXT LAB/CLB數(shù):4080 邏輯元件/單元數(shù):52224 RAM 位總計:4866048 輸入/輸出數(shù):480 門數(shù):- 電源電壓:0.95 V ~ 1.05 V 安裝類型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:1136-BBGA，F(xiàn)CBGA 供應(yīng)商設(shè)備封裝:1136-FCBGA 配用:568-5088-ND - BOARD DEMO DAC1408D750122-1796-ND - EVALUATION PLATFORM VIRTEX-5 |
| XCV405E-6FG900C | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV405E-6FG900I | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV405E-7BG404C | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
| XCV405E-7BG404I | 制造商:XILINX 制造商全稱:XILINX 功能描述:Virtex-E 1.8 V Extended Memory Field Programmable Gate Arrays |
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