动漫美女舌吻I日日夜夜中文字幕I中文字幕五码I日韩不卡在线观看I白丝一区I一级黄色avIxxxww日本I久久婷婷国产麻豆91天堂I大号bbwassbigav女I欧美性乱I国产黄色免费看I欧美性一级I成人欧美一区二区三区黑人一I美女福利在线观看I一区二区三区免费高清视频I黄色aaa毛片I9999国产精品Iwww.色就是色.comI天堂网在线观看免费视频Iwww在线免费观看I日韩一级片在线I午夜色片I亚洲日本一区二区I欧美日韩1区I日本美女动态图

德立華-英文版TYPE-C HUB設(shè)計方案！

下面TYPE-C由TYPE-Chub廠家為大家講解TYPE-CHUB方案的設(shè)計
1 FEATURES    
High performance and low-cost solution for USB hub
USB Specification Compliance ? Conforms to USB specification Rev. 1.1 ? Supports 1 device address and 2 endpoints
8-bit micro-processor ? RISC-like architecture  ? USB optimized instruction set ? Single cycle instruction execution  ? Operation Speed: DC to 24 MHz clock input ? Performance: 12 MIPS @ 24MHz
I/O ports  ? 4-port hub
Internal memory  ? 64 bytes of RAM  ? 1.75K × 14 of program ROM ? On-chip 3.3v output  ? No external regulator required
Integrated USB transceiver ? 12 MHz external clock  
Improved output drivers with slew-rate control to reduce EMI
Internal power-on reset(POR)  ? Internal power-fail detector for ESD recovery ? Support suspend/normal mode power management  
Support power management for downstream port devices
Automatic switching between self/bus powered mode ? Smart LED traffic indicator  ? The higher data traffic flows through one port, the higher frequency that port’s LED will blink.
Applications:  ? Stand-alone USB hub ? PC motherboard USB hub
48 pin LQFP package    
 
2 FUNCTION OVERVIEW  
The GLI650USB is a 5 port USB hub with 1 upstream port and 4 downstream ports. It uses an 8-bit RISC-like uC to encode/decode the host commands. The GL650USB is designed mainly for stand-alone hub and can also be integrated in PC motherboard or any other devices to support USB hub function. The GL650USB can switch between self-power and bus-power automatically without re-plug in. The GL650USB can be configured as individual mode or ganged mode for the power management of downstream port devices. To prevent from abnormal current consumption of downstream port devices, the GL650USB supplies power enable flags by reading the over-current flags. The GL650USB supports smart traffic indication through the LED lighting. The higher data traffic flows through one port, the higher frequency of that port’s LED blinks. To minimize the power consumption, the GL650USB will turn LED off and stop the clock when they are suspended.