参数资料
型号: LFXP2-17E-7F484C
厂商: LATTICE SEMICONDUCTOR CORP
元件分类: FPGA
中文描述: FPGA, 420 MHz, PBGA484
封装: 23 X 23 MM, FPBGA-484
文件页数: 13/92页
文件大小: 1701K
代理商: LFXP2-17E-7F484C
2-17
Architecture
Lattice Semiconductor
LatticeXP2 Family Data Sheet
Figure 2-16. FlashBAK Technology
Memory Cascading
Larger and deeper blocks of RAMs can be created using EBR sysMEM Blocks. Typically, the Lattice design tools
cascade memory transparently, based on speci c design inputs.
Single, Dual and Pseudo-Dual Port Modes
In all the sysMEM RAM modes the input data and address for the ports are registered at the input of the memory
array. The output data of the memory is optionally registered at the output.
EBR memory supports two forms of write behavior for single port or dual port operation:
1.
Normal – Data on the output appears only during a read cycle. During a write cycle, the data (at the current
address) does not appear on the output. This mode is supported for all data widths.
2.
Write Through – A copy of the input data appears at the output of the same port during a write cycle. This
mode is supported for all data widths.
Memory Core Reset
The memory array in the EBR utilizes latches at the A and B output ports. These latches can be reset asynchro-
nously or synchronously. RSTA and RSTB are local signals, which reset the output latches associated with Port A
and Port B respectively. GSRN, the global reset signal, resets both ports. The output data latches and associated
resets for both ports are as shown in Figure 2-17.
Figure 2-17. Memory Core Reset
Flash
EBR
JTAG / SPI Port
FPGA Logic
Write From Flash to
EBR During Configuration /
Write From EBR to Flash
on User Command
Make Infinite Reads and
Writes to EBR
Write to Flash During
Programming
Q
SET
D
LCLR
Output Data
Latches
Memory Core
Port A[17:0]
Q
SET
D
Port B[17:0]
RSTB
GSRN
Programmable Disable
RSTA
LCLR
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相关代理商/技术参数
参数描述
LFXP2-17E-7F484C8W 功能描述:FPGA - 现场可编程门阵列 17KLUTs 358I/O Inst- on DSP 1.2V -7Spd 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
LFXP2-17E-7FN484C 功能描述:FPGA - 现场可编程门阵列 17KLUTs 358 I/O Inst -on DSP 1.2V -6 Spd 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
LFXP2-17E-7FN484C8W 功能描述:FPGA - 现场可编程门阵列 17KLUTs 358I/O Inst -on DSP 1.2V -7 Spd 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
LFXP2-17E-7FT256C 功能描述:FPGA - 现场可编程门阵列 17KLUTs 201 I/O Inst -on DSP 1.2V -7 Spd 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
LFXP2-17E-7FT256C8W 功能描述:FPGA - 现场可编程门阵列 17KLUTs 201 I/O Inst -on DSP 1.2V -7 Spd 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