User ManualTable of Contents1. General description12. Features13. Ordering information24. Block diagram25. Pinning information35.1 ISP1122D (SO32) and ISP1122NB (SDIP32)35.1.1 Pinning35.1.2 Pin description35.2 ISP1122BD (LQFP32)65.2.1 Pinning65.2.2 Pin description66. Functional description86.1 Analog transceivers86.2 Philips Serial Interface Engine (SIE)96.3 Hub repeater96.4 End-of-frame timers96.5 General and individual port controller96.6 GoodLink96.7 Bit clock recovery96.8 Voltage regulator96.9 PLL clock multiplier106.10 Overcurrent detection106.11 I2C-bus interface107. Modes of operation108. Endpoint descriptions118.1 Hub endpoint 0 (control)118.2 Hub endpoint 1 (interrupt)119. Host requests129.1 Standard requests129.2 Hub specific requests139.3 Descriptors159.4 Hub responses189.4.1 Get device status189.4.2 Get configuration189.4.3 Get interface status189.4.4 Get hub status189.4.5 Get port status199.4.6 Get configuration descriptor209.4.7 Get device descriptor209.4.8 Get hub descriptor209.4.9 Get string descriptor(0)209.4.10 Get string descriptor(1)209.4.11 Get string descriptor(2)2010. I2C-bus interface2010.1 Protocol2010.2 Hardware connections2110.3 Data transfer2111. Hub power modes2211.1 Voltage drop requirements2211.1.1 Self-powered hubs2211.1.2 Bus-powered hubs2312. Overcurrent detection2412.1 Overcurrent circuit description2412.2 Power switch selection2412.3 Tuning the overcurrent trip voltage2512.4 Reference circuits2513. Limiting values3014. Static characteristics3115. Dynamic characteristics3216. Test information3817. Package outline39SOT287-139SOT232-140SOT358-14118. Soldering4218.1 Introduction4218.2 Surface mount packages4218.2.1 Reflow soldering4218.2.2 Wave soldering4218.2.3 Manual soldering4318.3 Through-hole mount packages4318.3.1 Soldering by dipping or by solder wave4318.3.2 Manual soldering4318.4 Package related soldering information4419. Revision history4520. Data sheet status4621. Definitions4622. Disclaimers4623. Licenses4624. Trademarks46Size: 1.1 MBPages: 48Language: EnglishOpen manual