我们知道f1c100s自带usb phy,那么这个phy是全速的,还是高速的
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full speed
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很懂英文的样子,问题和回答都很有形。
最近编辑记录 zhjerry (2020-07-11 12:14:22)
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高速的
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很懂英文的样子,问题和回答都很有形。
不说phy, 不说usb。 hi speed, full speed 都不让说。。。如果说“通用串行总线端口物理层”不绕口吗
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应该是全速的,高速phy置入应该成本比较高,感觉速度也没有达到高速的指标把
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The USB is a Dual-Role Device (DRD) controller, which supports both device and host functions
and is full compliant with the On-The-Go Supplement to the USB 2.0 Specification, Revision 1.0a.
It can also be configured as a Host-only or Device-only controller, full compliant with the USB 2.0
Specification. It can support high-speed (HS, 480-Mbps), full-speed (FS, 12-Mbps), and low-speed
(LS, 1.5-Mbps) transfers in Host mode. It can support high-speed (HS, 480-Mbps), and full-speed
(FS, 12-Mbps) in Device mode
截一段f1c100的手册
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