Philips ISP1521 - page 32

Philips Semiconductors ISP1521

Hi-Speed USB hub controller

Product data Rev. 03 — 24 November 2004 32 of 53

9397 750 13702 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.

12.3.6 Get port statusThis request returns four bytes of data. The ﬁrst word contains the port status bits(wPortStatus), and the next word contains the port status change bits(wPortChange). The contents of wPortStatus is given in Tabl e 31, and the contents ofwPortChange is given in Tabl e 32.

17 overcurrent indicator change 0 no change in overcurrent

1 overcurrent status has changed

18 to 31 reserved 0 -

Table 30: Get hub status response

…continued

Bit Function Value Description

Table 31: Get port status response (wPortStatus)

Bit Function Value Description

0 current connect status 0 no device is present

1 a device is present on this port

1 por t enabled or disabled 0 port is disabled

1 por t is enabled

2 suspend 0 port is not suspended

1 por t is suspended

3 overcurrent indicator 0 no overcurrent condition exists

1 an overcurrent condition exists

4 reset 0 reset signaling is not asserted

1 reset signaling is asser ted

5 to 7 reserved 0 -

8 por t power 0 port is in the powered-off state

1 por t is not in the powered-off state

9 low-speed device attached 0 full-speed or high-speed device is

attached

1 low-speed device is attached

10 high-speed device attached 0 full-speed device is attached

1 high-speed device is attached

11 port test mode 0 not in the por t test mode

1 in the por t test mode

12 port indicator control 0 displays default colors

1 displays software controlled color

13 to 15 reserved 0 -

Table 32: Get port status change response (wPortChange)

Bit Function Value Description

0 connect status change 0 no change in the current connect status

1 change in the current connect status

1 port enable or disable change 0 por t is enabled

1 por t is disabled

Contents

Main ISP1521 Hi-Speed Universal Serial Bus hub controller Universal Serial Bus Specication Rev.2.0 Rev. 03 24 November 2004 Product data 1. General description 2. Features Universal Serial Bus Specication Rev.2.0 3. Applications 4. Abbreviations 5. Ordering information Product data Rev. 03 24 November 2004 4 of 53 6. Block diagram Fig 1. Block diagram. ISP1521 Philips Semiconductors ISP1521 Product data Rev. 03 24 November 2004 5 of 53 7. Pinning information Fig 2. Pin conguration. 7.2 Pin description 7.1 Pinning ISP1521BE Page ISP1521 Hub Demo Board Users Guide Page Page 8. Functional description 8.3 Phase-locked loop clock multiplier 8.4 I2C-bus controller 8.5 Overcurrent detection circuit 8.6 GoodLink 8.7 Power-on reset Fig 4. External clock with respect to power-on reset. Fig 3. Power-on reset timing. Stable external clock is to be available at A. 9. Conguration selections 9.1 Conguration through I/O pins Philips Semiconductors ISP1521 pull-up Fig 6. Typical voltage drop components in the self-powered mode using global overcurrent detection. PSWn_N pins have integrated weak pull-up resistors inside the chip. (1) Includes PCB traces, ferrite beads, and so on. Page 9.2 Device descriptors and string descriptors settings using I2C-bus The I C-bus specication Page 9.2.3 ROM or EEPROM map Page Philips Semiconductors ISP1521 Page Page 10. Hub controller description 11. Descriptors Page Page 12. Hub requests Tab le 23 shows the suppor ted standard USB requests. 12.1 Standard USB requests 12.2 Hub class requests Tab le 24 shows the hub class requests. 12.3 Detailed responses to hub requests Page Page 12.4 Various get descriptors bmRequestType 10000000B bmRequest GET_DESCRIPTOR = 6 13. Limiting values 14. Recommended operating conditions In accordance with the Absolute Maximum Rating System (IEC 60134). 15. Static characteristics Page Page 16. Dynamic characteristics C; test circuit Figure 21; unless otherwise specied. Page TPERIOD is the bit duration corresponding with the USB data rate. Fig 11. Source differential data-to-EOP transition skew and EOP width. TPERIOD is the bit duration corresponding with the USB data rate. tJR is the jitter reference point. Fig 13. Receiver SE0 width tolerance. Fig 12. Receiver differential data jitter. Fig 14. Hub differential data delay and SOP distortion. Fig 15. Hub EOP delay and EOP skew. and T within recommended operating range; V =5V; V =V ; V 17. Application information 17.1 Descriptor conguration selection ISP1521 Fig 18. Adjusting analog overcurrent detection limit (optional). . . 17.3 Self-powered hub congurations ISP1521 Fig 19. Self-powered hub; individual port power switching; individual overcurrent detection. Fig 20. Self-powered hub; ganged port power switching; global overcurrent detection. ISP1521 18. Test information DMn D Fig 22. Full-speed test circuit. Fig 21. High-speed transmitter and receiver test circuit. 19. Package outline LQFP80: plastic low profile quad flat package; 80 leads; body 12 x 12 x 1.4 mm SOT315-1 Fig 23. LQFP80 package outline. 20. Soldering 20.1 Introduction to soldering surface mount packages Data Handbook IC26; Integrated Circuit Packages 20.2 Reow soldering 20.3 Wave soldering 21. Revision history Philips Semiconductors ISP1521 Contact information 22. Data sheet status 23. Denitions 24. Disclaimers 25. Licenses 26. Trademarks Contents