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.
標(biāo)簽: TYPE-Chub,設(shè)計方案
主站蜘蛛池模板:
万宁市|
砀山县|
鸡西市|
邵东县|
开鲁县|
甘肃省|
宁城县|
太原市|
蒙阴县|
通化市|
石屏县|
汕头市|
沾化县|
临泉县|
谢通门县|
武宣县|
彰武县|
邵阳县|
江津市|
湘乡市|
喀喇|
康保县|
花莲市|
莫力|
织金县|
吉首市|
沙田区|
资溪县|
湟中县|
长兴县|
自治县|
扬州市|
宣汉县|
巴林右旗|
广宁县|
洞口县|
天镇县|
梅州市|
玉田县|
吉水县|
临泽县|