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參數(shù)資料
| 型號(hào)： | XC3S5000-4FGG900C |
| 廠商： | Xilinx Inc |
| 文件頁(yè)數(shù)： | 210/272頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | SPARTAN-3A FPGA 5M STD 900-FBGA |
| 產(chǎn)品培訓(xùn)模塊： | Extended Spartan 3A FPGA Family |
| 標(biāo)準(zhǔn)包裝： | 27 |
| 系列： | Spartan®-3 |
| LAB/CLB數(shù)： | 8320 |
| 邏輯元件/單元數(shù)： | 74880 |
| RAM 位總計(jì)： | 1916928 |
| 輸入/輸出數(shù)： | 633 |
| 門數(shù)： | 5000000 |
| 電源電壓： | 1.14 V ~ 1.26 V |
| 安裝類型： | 表面貼裝 |
| 工作溫度： | 0°C ~ 85°C |
| 封裝/外殼： | 900-BBGA |
| 供應(yīng)商設(shè)備封裝： | 900-FBGA |
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Spartan-3 FPGA Family: Functional Description
DS099 (v3.1) June 27, 2013
Product Specification
42
Stabilizing DCM Clocks Before User Mode
It is possible to delay the completion of device configuration until after the DLL has achieved a lock condition using the
STARTUP_WAIT attribute described in Table 24. This option ensures that the FPGA does not enter user mode—i.e., begin
functional operation—until all system clocks generated by the DCM are stable. In order to achieve the delay, it is necessary
to set the attribute to TRUE as well as set the BitGen option LCK_cycle to one of the six cycles making up the Startup phase
of configuration. The selected cycle defines the point at which configuration will halt until the LOCKED output goes High.
Global Clock Network
Spartan-3 devices have eight Global Clock inputs called GCLK0 - GCLK7. These inputs provide access to a
low-capacitance, low-skew network that is well-suited to carrying high-frequency signals. The Spartan-3 FPGAs clock
network is shown in Figure 23. GCLK0 through GCLK3 are located in the center of the bottom edge. GCLK4 through GCLK7
are located in the center of the top edge.
Eight Global Clock Multiplexers (also called BUFGMUX elements) are provided that accept signals from Global Clock inputs
and route them to the internal clock network as well as DCMs. Four BUFGMUX elements are located in the center of the
bottom edge, just above the GCLK0 - GCLK3 inputs. The remaining four BUFGMUX elements are located in the center of
the top edge, just below the GCLK4 - GCLK7 inputs.
Pairs of BUFGMUX elements share global inputs, as shown in Figure 24. For example, the GCLK4 and GCLK5 inputs both
potentially connect to BUFGMUX4 and BUFGMUX5 located in the upper right center. A differential clock input uses a pair of
GCLK inputs to connect to a single BUFGMUX element.
Table 22: Status Logic Signals
Signal
Direction
Description
RST
Input
A High resets the entire DCM to its initial power-on state. Initializes the DLL taps for a delay of zero.
Sets the LOCKED output Low. This input is asynchronous.
STATUS[7:0]
Output
The bit values on the STATUS bus provide information regarding the state of DLL and PS operation
LOCKED
Output
Indicates that the CLKIN and CLKFB signals are in phase by going High. The two signals are
out-of-phase when Low.
Table 23: DCM STATUS Bus
Bit
Name
Description
0
Phase Shift Overflow
A value of 1 indicates a phase shift overflow when one of two conditions occurs:
Incrementing (or decrementing) TPS beyond 255/256 of a CLKIN cycle.
The DLL is producing its maximum possible phase shift (i.e., all delay taps are active).(1)
1
CLKIN Input Stopped
Toggling
A value of 1 indicates that the CLKIN input signal is not toggling. A value of 0 indicates toggling. This
bit functions only when the CLKFB input is connected.(2)
2
CLKFX/CLKFX180
Output Stopped
Toggling
A value of 1 indicates that the CLKFX or CLKFX180 output signals are not toggling. A value of 0
indicates toggling. This bit functions only when using the Digital Frequency Synthesizer (DFS).
3:7
Reserved
–
Notes:
1.
The DLL phase shift with all delay taps active is specified as the parameter FINE_SHIFT_RANGE.
2.
If only the DFS clock outputs are used, but none of the DLL clock outputs, this bit will not go High when the CLKIN signal stops.
Table 24: Status Attributes
Attribute
Description
Values
STARTUP_WAIT
Delays transition from configuration to user mode until lock condition is achieved.
TRUE, FALSE
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| XC3S5000-4FGG900I | 功能描述:SPARTAN-3A FPGA 5M STD 900-FBGA RoHS:是 類別:集成電路 (IC) >> 嵌入式 - FPGA（現(xiàn)場(chǎng)可編程門陣列） 系列:Spartan®-3 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(jì):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 |
| XC3S5000-5FG1156C | 制造商:Xilinx 功能描述: |
| XC3S5000-5FG676C | 制造商:Xilinx 功能描述:FPGA SPARTAN-3 5M GATES 74880 CELLS 725MHZ 1.2V 676FBGA - Trays |
| XC3S5000-5FG900C | 制造商:Xilinx 功能描述:FPGA SPARTAN-3 5M GATES 74880 CELLS 725MHZ 1.2V 900FBGA - Trays |
| XC3S5000-5FG900CES | 制造商:Xilinx 功能描述: |
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