1 Tegra K1 XUSB
1.1 组成框图
Figure 1-1 USB 3.0 Controller Block Diagram
Figure 1-2 Tegra K1 USB 3.0 Controller and Interfaces
1.2 Falcon MCU的作用
- Command ring processing
- Event ring management
- Endpoint scheduling
- Context save and restore
2 μPD720201 and μPD720202
2.1 组成框图
Figure 2-1 μPD720201 Block Diagram
至于是否内置MCU，无法确认。
2.2 下载固件3个寄存器
CFG Offset Address: F4h，16bit
FW Download Control and Status Register
CFG Offset Address: F8h，32bit
DATA0 Register
CFG Offset Address: FCh，32bit
DATA1 Register
3 Abbreviations
Falcon：FAst Logic CONtroller。NVIDIA私有的RISC MCU，主要用在桌面GPU（Falcon中的寄存器一般映射到PCI BAR0）或者Tegra xHCI控制器中。NVIDIA正在把私有的Falcon MCU架构换成RISC-V