參數(shù)資料
型號(hào): OR4E02-2BM680I
英文描述: FPGA
中文描述: FPGA的
文件頁(yè)數(shù): 74/153頁(yè)
文件大小: 2737K
代理商: OR4E02-2BM680I
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74
Lattice Semiconductor
Data Sheet
November, 2002
ORCA
Series 4 FPGAs
FPGA Con
fi
guration Modes
(continued)
5-4488(F).a
Figure 46. Daisy-Chain Con
fi
guration Schematic
As seen in Figure 46, the INIT pins for all of the FPGAs are connected together. This is required to guarantee that
powerup and initialization will work correctly. In general, the DONE pins for all of the FPGAs are also connected
together as shown to guarantee that all of the FPGAs enter the start-up state simultaneously. This may not be
required, depending upon the start-up sequence desired.
Daisy-Chaining with Boundary-Scan
Multiple FPGAs can be con
fi
gured through the JTAG ports by using a daisy-chain of the FPGAs. This daisy-chain-
ing operation is available upon initial con
fi
guration after powerup, after a power-on reset, after pulling the program
pin to reset the chip, or during a recon
fi
guration if the EN_JTAG RAM has been set.
All daisy-chained FPGAs are connected in series. Each FPGA reads and shifts the preamble and length count in
on the positive TCK and out on the negative TCK edges.
An upstream FPGA that has received the preamble and length count outputs a high on TDO until it has received
the appropriate number of data frames so that downstream FPGAs do not receive frame start bit pairs. After load-
ing and retransmitting the preamble and length count to a daisy-chain of downstream devices, the lead device
loads its con
fi
guration data frames.
The loading of con
fi
guration data continues after the lead device had received its con
fi
guration read into TDI of
downstream devices on the positive edge of TCK, and shifted out TDO on the negative edge of TCK.
V
DD
EPROM
D[7:0]
PROGRAM
OE
CE
M2
M1
M0
DONE
HDC
LDC
RCLK
CCLK
DIN
DOUT
DOUT
DIN
CCLK
DONE
DOUT
INIT
INIT
INIT
CCLK
V
DD
PRGM
PRGM
PRGM
HDC
LDC
RCLK
HDC
LDC
RCLK
V
DD
ORCA
SERIES
FPGA
SLAVE 2
ORCA
SERIES
FPGA
MASTER
ORCA
SERIES
FPGA
SLAVE 1
A[21:0]
A[21:0]
D[7:0]
DONE
M3
M2
M1
M0
V
DD
M3
M2
M1
M0
V
DD
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OR4E02-3BA352C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 405 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
OR4E02-3BM416C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 405 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
OR4E02-3BM680C 功能描述:FPGA - 現(xiàn)場(chǎng)可編程門(mén)陣列 4992 LUT 405 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 柵極數(shù)量: 邏輯塊數(shù)量:943 內(nèi)嵌式塊RAM - EBR:1956 kbit 輸入/輸出端數(shù)量:128 最大工作頻率:800 MHz 工作電源電壓:1.1 V 最大工作溫度:+ 70 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FBGA-256
OR4E04 制造商:LATTICE 制造商全稱:Lattice Semiconductor 功能描述:ORCASeries 4 FPGAs
OR4E04-1BA3521 制造商:Rochester Electronics LLC 功能描述: 制造商:Lattice Semiconductor Corporation 功能描述: