参数资料
| 型号： | XC2S400E-6FGG456C |
| 厂商： | Xilinx Inc |
| 文件页数： | 26/108页 |
| 文件大小： | 0K |
| 描述： | IC SPARTAN-IIE FPGA 400K 456FBGA |
| 产品变化通告： | FPGA Family Discontinuation 18/Apr/2011 |
| 标准包装： | 60 |
| 系列： | Spartan®-IIE |
| LAB/CLB数： | 2400 |
| 逻辑元件/单元数： | 10800 |
| RAM 位总计： | 163840 |
| 输入/输出数： | 329 |
| 门数： | 400000 |
| 电源电压： | 1.71 V ~ 1.89 V |
| 安装类型： | 表面贴装 |
| 工作温度： | 0°C ~ 85°C |
| 封装/外壳： | 456-BBGA |
| 供应商设备封装： | 456-FBGA |
| 其它名称： | 122-1327 |
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24
DS077-2 (v3.0) August 9, 2013
Product Specification
Spartan-IIE FPGA Family: Functional Description
R
— OBSOLETE — OBSOLETE — OBSOLETE — OBSOLETE —
During start-up, the device performs four operations:
1.
The assertion of DONE. The failure of DONE to go High
may indicate the unsuccessful loading of configuration
data.
2.
The release of the Global Three State (GTS). This
activates all the I/Os to which signals are assigned. The
remaining I/Os stay in a high-impedance state with
internal weak pull-up resistors present.
3.
The release of the Global Set Reset (GSR). This allows
all flip-flops to change state.
4.
The assertion of Global Write Enable (GWE). This
allows all RAMs and flip-flops to change state.
By default, these operations are synchronized to CCLK.
The entire start-up sequence lasts eight cycles, called
C0-C7, after which the loaded design is fully functional. The
four operations can be selected to switch on any CCLK
cycle
C1-C6
through
settings
in
the
Xilinx
Development Software. The default timing for start-up is
shown in the top half of Figure 17; heavy lines show default
settings.
The default Start-up sequence is that one CCLK cycle after
DONE goes High, the global 3-state signal (GTS) is
released. This permits device outputs to turn on as neces-
sary.
One CCLK cycle later, the Global Set/Reset (GSR) and
Global Write Enable (GWE) signals are released. This per-
mits the internal storage elements to begin changing state
in response to the logic and the user clock.
The bottom half of Figure 17 shows another commonly
used
version
of
the
start-up
timing
known
as
Sync-to-DONE. This version makes the GTS, GSR, and
GWE events conditional upon the DONE pin going High.
This timing is important for a daisy chain of multiple FPGAs
in serial mode, since it ensures that all FPGAs go through
start-up together, after all their DONE pins have gone High.
Sync-to-DONE timing is selected by setting the GTS, GSR,
and GWE cycles to a value of DONE in the configuration
options. This causes these signals to transition one clock
cycle after DONE externally transitions High.
The sequence can also be paused at any stage until lock
has been achieved on any or all DLLs.
Serial Modes
There are two serial configuration modes. In Master Serial
mode, the FPGA controls the configuration process by driv-
ing CCLK as an output. In Slave Serial mode, the FPGA
passively receives CCLK as an input from an external agent
(e.g., a microprocessor, CPLD, or second FPGA in master
mode) that is controlling the configuration process. In both
modes, the FPGA is configured by loading one bit per CCLK
cycle. The MSB of each configuration data byte is always
written to the DIN pin first.
See Figure 18 for the sequence for loading data into the
Spartan-IIE FPGA serially. This is an expansion of the
"Load Configuration Data Frames" block in Figure 16,
page 23. Note that CS and WRITE are not normally used
during serial configuration. To ensure successful loading of
the FPGA, do not toggle WRITE with CS Low during serial
configuration.
Figure 17: Start-Up Waveforms
Start-up CLK
Default Cycles
Sync to DONE
01
2
3
4
5
6
7
01
DONE High
23
4
5
6
7
Phase
Start-up CLK
Phase
DONE
GTS
GSR
GWE
DS001_13_090600
DONE
GTS
GSR
GWE
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相关代理商/技术参数 |
参数描述 |
|---|---|
| XC2S400E-6FGG456I | 制造商:Xilinx 功能描述:FPGA SPARTAN-IIE 400K GATES 10800 CELLS 357MHZ 1.8V 456FBGA - Trays |
| XC2S400E-6FGG676C | 制造商:XILINX 制造商全称:XILINX 功能描述:Spartan-IIE FPGA |
| XC2S400E-6FGG676I | 制造商:XILINX 制造商全称:XILINX 功能描述:Spartan-IIE FPGA |
| XC2S400E-6FT256C | 功能描述:IC SPARTAN-IIE FPGA 400K 256FTBG RoHS:是 类别:集成电路 (IC) >> 嵌入式 - FPGA（现场可编程门阵列） 系列:Spartan®-IIE 产品变化通告:Step Intro and Pkg Change 11/March/2008 标准包装:1 系列:Virtex®-5 SXT LAB/CLB数:4080 逻辑元件/单元数:52224 RAM 位总计:4866048 输入/输出数:480 门数:- 电源电压:0.95 V ~ 1.05 V 安装类型:表面贴装 工作温度:-40°C ~ 100°C 封装/外壳:1136-BBGA，FCBGA 供应商设备封装:1136-FCBGA 配用:568-5088-ND - BOARD DEMO DAC1408D750122-1796-ND - EVALUATION PLATFORM VIRTEX-5 |
| XC2S400E-6FT256I | 制造商:Xilinx 功能描述:FPGA SPARTAN-IIE 400K GATES 10800 CELLS 357MHZ 1.8V 256FTBGA - Trays |
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