參數(shù)資料
型號(hào): XC3S1200E-4FG400I
廠商: Xilinx Inc
文件頁(yè)數(shù): 181/227頁(yè)
文件大?。?/td> 0K
描述: IC FPGA SPARTAN 3E 400FBGA
標(biāo)準(zhǔn)包裝: 60
系列: Spartan®-3E
LAB/CLB數(shù): 2168
邏輯元件/單元數(shù): 19512
RAM 位總計(jì): 516096
輸入/輸出數(shù): 304
門(mén)數(shù): 1200000
電源電壓: 1.14 V ~ 1.26 V
安裝類(lèi)型: 表面貼裝
工作溫度: -40°C ~ 100°C
封裝/外殼: 400-BGA
供應(yīng)商設(shè)備封裝: 400-FBGA(21x21)
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Spartan-3E FPGA Family: Functional Description
DS312 (v4.1) July 19, 2013
Product Specification
57
Status Logic
The Status Logic indicates the present state of the DCM
and a means to reset the DCM to its initial known state. The
Status Logic signals are described in Table 37.
In general, the Reset (RST) input is only asserted upon
configuring the FPGA or when changing the CLKIN
frequency. The RST signal must be asserted for three or
more CLKIN cycles. A DCM reset does not affect attribute
values (for example, CLKFX_MULTIPLY and
CLKFX_DIVIDE). If not used, RST is tied to GND.
The eight bits of the STATUS bus are described in Table 38.
Stabilizing DCM Clocks Before User Mode
The STARTUP_WAIT attribute shown in Table 39 optionally
delays the end of the FPGA’s configuration process until
after the DCM locks to its incoming clock frequency. This
option ensures that the FPGA remains in the Startup phase
of configuration until all clock outputs generated by the
DCM are stable. When all DCMs that have their
STARTUP_WAIT attribute set to TRUE assert the LOCKED
signal, then the FPGA completes its configuration process
and proceeds to user mode. The associated bitstream
generator (BitGen) option LCK_cycle specifies one of the
six cycles in the Startup phase. The selected cycle defines
the point at which configuration stalls until all the LOCKED
outputs go High. See Start-Up, page 106 for more
information.
Spread Spectrum
DCMs accept typical spread spectrum clocks as long as
they meet the input requirements. The DLL will track the
frequency changes created by the spread spectrum clock to
drive the global clocks to the FPGA logic. See XAPP469,
Spread-Spectrum Clocking Reception for Displays for
details.
Table 37: 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 38: DCM Status Bus
Bit
Name
Description
0
Reserved
-
1
CLKIN Stopped
When High, indicates that the CLKIN input signal is not toggling. When Low, indicates CLKIN is toggling.
This bit functions only when the CLKFB input is connected.(1)
2
CLKFX Stopped
When High, indicates that the CLKFX output is not toggling. When Low, indicates the CLKFX output is
toggling. This bit functions only when the CLKFX or CLKFX180 output are connected.
3-6
Reserved
-
Notes:
1.
When only the DFS clock outputs but none of the DLL clock outputs are used, this bit does not go High when the CLKIN signal stops.
Table 39: STARTUP_WAIT Attribute
Attribute
Description
Values
STARTUP_WAIT
When TRUE, delays
transition from
configuration to user
mode until DCM
locks to the input
clock.
TRUE, FALSE
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參數(shù)描述
XC3S1200E-4FG484C 制造商:XILINX 制造商全稱(chēng):XILINX 功能描述:Spartan-3E FPGA Family
XC3S1200E-4FG484I 制造商:XILINX 制造商全稱(chēng):XILINX 功能描述:Spartan-3E FPGA Family
XC3S1200E-4FGG320C 功能描述:IC SPARTAN-3E FPGA 1200K 320FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:Spartan®-3E 標(biāo)準(zhǔn)包裝:60 系列:XP LAB/CLB數(shù):- 邏輯元件/單元數(shù):10000 RAM 位總計(jì):221184 輸入/輸出數(shù):244 門(mén)數(shù):- 電源電壓:1.71 V ~ 3.465 V 安裝類(lèi)型:表面貼裝 工作溫度:0°C ~ 85°C 封裝/外殼:388-BBGA 供應(yīng)商設(shè)備封裝:388-FPBGA(23x23) 其它名稱(chēng):220-1241
XC3S1200E-4FGG320I 功能描述:IC FPGA SPARTAN-3E 1200K 320FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:Spartan®-3E 標(biāo)準(zhǔn)包裝:40 系列:Spartan® 6 LX LAB/CLB數(shù):3411 邏輯元件/單元數(shù):43661 RAM 位總計(jì):2138112 輸入/輸出數(shù):358 門(mén)數(shù):- 電源電壓:1.14 V ~ 1.26 V 安裝類(lèi)型:表面貼裝 工作溫度:-40°C ~ 100°C 封裝/外殼:676-BGA 供應(yīng)商設(shè)備封裝:676-FBGA(27x27)
XC3S1200E-4FGG400C 功能描述:IC SPARTAN-3E FPGA 1200K 400FBGA RoHS:是 類(lèi)別:集成電路 (IC) >> 嵌入式 - FPGA(現(xiàn)場(chǎng)可編程門(mén)陣列) 系列:Spartan®-3E 標(biāo)準(zhǔn)包裝:60 系列:XP LAB/CLB數(shù):- 邏輯元件/單元數(shù):10000 RAM 位總計(jì):221184 輸入/輸出數(shù):244 門(mén)數(shù):- 電源電壓:1.71 V ~ 3.465 V 安裝類(lèi)型:表面貼裝 工作溫度:0°C ~ 85°C 封裝/外殼:388-BBGA 供應(yīng)商設(shè)備封裝:388-FPBGA(23x23) 其它名稱(chēng):220-1241