1、Link Capabilities寄存器 Link Capabilities寄存器描述PCIe链路相关的属性,具体含义: ①Supported Link Speeds字段,表示PCIe链路支持的速率,具体定义: 4'b0001,表示PCIe链路支持2.5GT/s; 4'b0010,表示PCIe链路支持5GT/s; 4'b0100,表示PCIe链路支持8GT/s; ②Maximum Link Width字段,存放PCIe设备支持的最大链路宽...
PCIe Maximum Link Width:指示此NVM子系统端口的最大PCIe链路带宽。这是预期的协商链路带宽,如果平台支持,端口链路将训练到此链路带宽。管理控制器可以将该值与PCIe协商的链路带宽进行比较,以确定是否存在PCIe链路训练问题。 取值 定义 0 预留。 1 PCIe x1。
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。
Maximum Link Width 67 PCIe Port 1 Capabilities 67 03h Maximum Link Speed 68 68 04h Maximum Link Width 69 Initial Power Requirements 69 06h 12V power rail initial power requirement (W) 70 70 00h Reserved 71 71 00h Reserved 72 Maximum Power Requirements 72 15h...
Device ID:A unique identifier for the application; the default value, whichdepends on the configuration selected, is 70<linkspeed><linkwidth>h. This field can be any value;change thisvalue for the application. 2.2 ip core的应用部分 上位机传输的TLP包先到PCIe ip core,之后进行解析,解析的部分为...
Maximum link width based on available GTYP in the selected device/package Two independent controllers when configured at x8 link widths or narrower One controller when configured at x16 link width Gen1 (2.5 GT/s/lane), Gen2 (5.0 GT/s/lane), Gen3 (8.0 GT/s/lane), Gen4 (16.0 GT/s/la...
Maximum PCIe Bandwidth PCIe 最大带宽计算公式: 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Maximum PCIe Bandwidth = SPEED * WIDTH * (1 - ENCODING) - 1Gb/s. PCIe-Gen3 x8 带宽 代码语言:javascript 代码运行次数:0 运行 AI代码解释 Maximum PCIe Bandwidth = 8G * 8 * (1 - 2/130) -...
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...
PCI Express(Peripheral Component Interconnect Express), officially abbreviated asPCIe, is acomputerexpansion cardstandard designed to replace the olderPCI,PCI-X, andAGPbus standards. PCIe has numerous improvements over the aforementioned bus standards, including higher maximum system bus throughput, lower ...
#define PCI_EXP_LNKCAP_MLW 0x000003f0 /* Maximum Link Width */ #define PCI_EXP_LNKCAP_DLLLARC 0x00100000 /* Data Link Layer Link Active Reporting Capable */ #define PCI_EXP_LNKCTL 16 /* Link Control */ #define PCI_EXP_LNKCTL_RL 0x0020 /* Retrain Link */ #define PCI_EXP_LNKSTA...