isp1520 NXP Semiconductors, isp1520 Datasheet - Page 52

• Manufacturer Part Number: isp1520
• Description: Hi-speed Universal Serial Bus Hub Controller
• Manufacturer: NXP Semiconductors

Philips Semiconductors
26. Figures
Fig 1.
Fig 2.
Fig 3.
Fig 4.
Fig 5.
Fig 6.
Fig 7.
Fig 8.
Fig 9.
Fig 10. Source differential data jitter . . . . . . . . . . . . . . . .37
Fig 11. Source differential data-to-EOP transition skew
Fig 12. Receiver differential data jitter . . . . . . . . . . . . . . .38
Fig 13. Receiver SE0 width tolerance . . . . . . . . . . . . . . .38
Fig 14. Hub differential data delay and SOP distortion . .38
Fig 15. Hub EOP delay and EOP skew . . . . . . . . . . . . . .39
Fig 16. I
Fig 17. Descriptors configuration selection application
Fig 18. Adjusting analog overcurrent detection limit
Fig 19. Self-powered hub; individual port power
Fig 20. Self-powered hub; ganged port power switching;
Fig 21. High-speed transmitter and receiver test circuit. .44
Fig 22. Full-speed test circuit . . . . . . . . . . . . . . . . . . . . . .44
Fig 23. LQFP64 package outline . . . . . . . . . . . . . . . . . . .45
ISP1520_4
Product data sheet
Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . .3
Pin configuration . . . . . . . . . . . . . . . . . . . . . . . . . .4
Power-on reset timing . . . . . . . . . . . . . . . . . . . . .10
External clock with respect to power-on reset . . .10
Typical voltage drop components in self-powered
mode using individual overcurrent detection . . . .12
Typical voltage drop components in self-powered
mode using global overcurrent detection . . . . . . .13
Configurable hub descriptors . . . . . . . . . . . . . . . .15
ROM or EEPROM map . . . . . . . . . . . . . . . . . . . .16
Overcurrent trip response timing . . . . . . . . . . . . .35
and EOP width . . . . . . . . . . . . . . . . . . . . . . . . . . .37
diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
(optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41
switching; individual overcurrent detection. . . . . .42
global overcurrent detection. . . . . . . . . . . . . . . . .43
2
C-bus timing . . . . . . . . . . . . . . . . . . . . . . . . . . .40
Rev. 04 — 28 April 2006
© Koninklijke Philips Electronics N.V. 2006. All rights reserved.
Hi-Speed USB hub controller
ISP1520
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