DFI 全称 DDR PHY Interface, 是 DDR controller 和 DDR PHY 之间的行业标准接口。 通过DFI 标准化 PHY 接口之后,增进了不同厂商的 DDR Controller/PHY IP 之间的互操作性,减少了集成开发 DDR 子系统的成本。 DFI 协议定义了 Controller 和 PHY 之间接口的信号、时序以及交互行为。 DFI 协议没有定义或者约束 ...
DFI(DDR PHY Interface)是DDR controller 与PHY 之间的接口协议,接口信号由下表所示: 控制、读、写、update、status 接口信号: training、低功耗控制、Error 接口信号: control 信号 控制信号timing 写数据信号 读数据接口 读数据时序 update 接口 status 接口 status timing DFI training 接口 training timing 低功耗...
DDR PHY Interface(DFI) provides an smart way to verify the DFI component of a SOC or a ASIC. The SmartDV's DDR PHY Interface(DFI) is fully compliant with standard DFI Specification and provides the following features. DFI Memory Model is supported natively inSystemVerilog, VMM, RVM, AVM, ...
memory controller vendors, and PHY providers. The goal of the DFI specification is to define a common interface between the memory controller logic and the PHY interface in order to reduce cost, time-to-market,
DFI is an industry spec that simplifies and defines a standard interface between the DDR memory controller logic and the PHY interface.
About DFI Introduction The memory controller logic and PHY interface represent the two primary design elements in DDR memory systems, which are used in virtually all electronic system designs, from cellphones and set-top boxes, to compu...
memory controller vendors, and PHY providers. The goal of the DFI specification is to define a common interface between the memory controller logic and the PHY interface in order to reduce cost, time-to-market, and increase the potential for reuse of the individual components that make up the...
不同的频率比 – DFI 接口支持 1:1、1:2 和 1:4 MC 与 PHY 时钟频率比,可实现快速 PHY 内存访问。DFI 规范定义了 MC 和 PHY 之间的频率变化协议,以允许设备更改内存控制器和 PHY 的时钟频率,而无需完全重新设置系统。 对MC 或 PHY 没有限制 – DFI 协议并不包含 MC 或 PHY 的所有功能,该协议也不...
DDR PHY Interface(DFI) provides an smart way to verify the DFI component of a SOC or a ASIC. The SmartDV's DDR PHY Interface(DFI) is fully compliant with standard DFI Specification and provides the following features. DFI Memory Model is supported natively inSystemVerilog, VMM, RVM, AVM, ...
不同的频率比 – DFI 接口支持 1:1、1:2 和 1:4 MC 与 PHY 时钟频率比,可实现快速 PHY 内存访问。DFI 规范定义了 MC 和 PHY 之间的频率变化协议,以允许设备更改内存控制器和 PHY 的时钟频率,而无需完全重新设置系统。 对MC 或 PHY 没有限制 – DFI 协议并不包含 MC 或 PHY 的所有功能,该协议也不...