参数资料
型号: OR4E041BM680-DB
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
英文描述: FPGA, 1296 CLBS, 380000 GATES, PBGA680
封装: PLASTIC, FBGA-680
文件页数: 122/151页
文件大小: 2680K
代理商: OR4E041BM680-DB
72
Lattice Semiconductor
Data Sheet
September, 2002
ORCA Series 4 FPGAs
FPGA Conguration Modes (continued)
Slave Serial Mode
The slave serial mode is primarily used when multiple FPGAs are congured in a daisy-chain (see the Daisy-
Chaining section). It is also used on the FPGA evaluation board that interfaces to the download cable. A device in
the slave serial mode can be used as the lead device in a daisy-chain. Figure 44 shows the connections for the
slave serial conguration mode.
The conguration data is provided into the FPGA’s DIN input synchronous with the conguration clock CCLK input.
After the FPGA has loaded its conguration data, it retransmits the incoming conguration data on DOUT at the ris-
ing edge of CCLK. CCLK is routed into all slave serial mode devices in parallel.
Multiple slave FPGAs can be loaded with identical congurations simultaneously. This is done by loading the con-
guration data into the DIN inputs in parallel.
5-4485(F).a
Figure 44. Slave Serial Conguration Schematic
Slave Parallel Mode
The slave parallel mode is essentially the same as the slave serial mode except that 8 bits of data are input on pins
D[7:0] for each CCLK cycle. Due to 8 bits of data being input per CCLK cycle, the DOUT pin does not contain a
valid bit stream for slave parallel mode. As a result, the lead device cannot be used in the slave parallel mode in a
daisy-chain conguration.
Figure 45 is a schematic of the connections for the slave parallel conguration mode. WR and CS0 are active-low
chip select signals, and CS1 is an active-high chip select signal. These chip selects allow the user to congure mul-
tiple FPGAs in slave parallel mode using an 8-bit data bus common to all of the FPGAs. These chip selects can
then be used to select the FPGAs to be congured with a given bit stream. The chip selects must be active for each
valid CCLK cycle until the device has been completely programmed. They can be inactive between cycles but must
meet the setup and hold times for each valid positive CCLK. D[7:0] of the FPGA can be connected to D[7:0] of the
microprocessor only if a standard prom le format is used. If a .bit or .rbt le is used from ORCA Foundry, then the
user must mirror the bytes in the .bit or .rbt le OR leave the .bit or .rbt le unchanged and connect D[7:0] of the
FPGA to D[0:7] of the microprocessor.
MICRO-
PROCESSOR
OR
DOWNLOAD
CABLE
M2
M1
M0
HDC
SERIES
FPGA
LDC
VDD
CCLK
PRGM
DOUT
TO DAISY-
CHAINED
DEVICES
DONE
DIN
INIT
ORCA
M3
相关PDF资料
PDF描述
OR4E042BA352-DB FPGA, 1296 CLBS, 380000 GATES, PBGA352
OR4E042BM416-DB FPGA, 1296 CLBS, 380000 GATES, PBGA416
OR4E042BM680-DB FPGA, 1296 CLBS, 380000 GATES, PBGA680
OR4E043BA352-DB FPGA, 1296 CLBS, 380000 GATES, PBGA352
OR4E043BM416-DB FPGA, 1296 CLBS, 380000 GATES, PBGA416
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OR4E04-2BA352C 功能描述:FPGA - 现场可编程门阵列 10368 LUT 466 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
OR4E04-2BA352I 功能描述:FPGA - 现场可编程门阵列 10368 LUT 466 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
OR4E04-2BM416C 功能描述:FPGA - 现场可编程门阵列 10368 LUT 466 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256
OR4E04-2BM416I 功能描述:FPGA - 现场可编程门阵列 10368 LUT 466 I/O RoHS:否 制造商:Altera Corporation 系列:Cyclone V E 栅极数量: 逻辑块数量:943 内嵌式块RAM - EBR:1956 kbit 输入/输出端数量:128 最大工作频率:800 MHz 工作电源电压:1.1 V 最大工作温度:+ 70 C 安装风格:SMD/SMT 封装 / 箱体:FBGA-256