Link Register是连接寄存器,用于告知电脑FPGA板卡速度与通道,电脑识别为PCIE1.0还是2.0,30,或者X1,X2,X4等都是电脑访问这个地址得到的,在PCIE枚举过程会访问此地址。 Support Link Speed:链路速度,如果是PCIE1.0,此值为1,PCIE2.0为2,PCIE3.0为3。 Maximum Link Width:链路通道,X1,X2,X4,X8分别是1,2,4,8等。
(6)“Maximum Link Speed”(最大链路速度):子系统需要选择 PCIe Gen 速度。 (7)“Reference Clock Frequency”(参考时钟频率):默认值为 100 MHz,但也支持 125 MHz 和 250 MHz。 (8)“AXI Address Width”(AXI 地址宽度):当前,仅支持 64 位宽度。 (9)“AXI Data Width”(AXI 数据宽度):选择 64、128...
关于Device ID(设备ID):应用程序的唯一标识,默认值取决于所选配置的<link speed><link width>,链路速度与链路宽度,前两位为固定的70,对于7030-2系列设置为7022。 Reference: Vender ID:Identifies the manufacturer of thedevice or application. Valid identifiers are assigned by the PCI SpecialInterest Group to...
Maximum Link Width: 4x Current Link Width: 4x Maximum Link Speed: 8.0 GT/s Current Link Speed: 8.0 GT/s Device/Port Type: PCI Express Endpoint Slot Implemented: No Emergency Power Reduction: Not Supported Active State Power Management (ASPM) Support: L1 Active State Power Manageme...
(1) link Capabilities Registersupported link speeds :指示给定PCIE链路的链路速 55、度maximum link width :此值设置为在第一个GUI屏幕中指定的初始通道宽度,不可修改ASPM optionality :DLL link Active Reporting Capability : 指示可选的data link control and anagement state machine 的激活状态link capabilities...
internally. But the external device could not modify the register over PCIe link since it is read-only by external device. Basically you can keep the default values in this register (indicating the maximum rate and lanes supported) and you can change the rate and...
2 1 Maximum link width Defines the number of lanes which are connected and good. Enable HIP Reconfig interface On / Off Off Enables HIP reconfiguration interface Note:This interface is automatically enabled in Root Port mode. Hence, the parameter is not available for user modification in Ro...
Maximum PCIe Bandwidth = SPEED * WIDTH * (1 - ENCODING) - 1Gb/s...PCIe-Gen3 x8 带宽 Maximum PCIe Bandwidth = 8G * 8 * (1 - 2/130) - 1G = 64G * 0.985 - 1G = ~62Gb/s...PCIe-Gen2 x16 带宽 Maximum PCIe Bandwidth = 5G * 16 * (1 - 1/5) - 1G = 80G * 0.8 - 1G...
Maximum PCIe Bandwidth PCIe 最大带宽计算公式: 代码语言:javascript 复制 Maximum PCIe Bandwidth=SPEED*WIDTH*(1-ENCODING)-1Gb/s. PCIe-Gen3 x8 带宽 代码语言:javascript 复制 Maximum PCIe Bandwidth=8G*8*(1-2/130)-1G=64G*0.985-1G=~62Gb/s. ...
Maximum Limit on Retimer Latency 432 Impacts on Upstream and Downstream Ports 433 4.3.9 SRIS 433 Page 8 5.0-1.0-PUB — PCI Express® Base Specification Revision 5.0 Version 1.0 4.3.10 L1 PM Substates Support 434 4.3.11 Retimer Configuration Parameters 436 Global Parameters 437 Per Physical ...