Philips ISP1520 11. Descriptors

Philips Semiconductors ISP1520

Hi-Speed USB hub controller

Product data Rev. 03 — 24 November 2004 23 of 51

9397 750 13701 © Koninklijke Philips Electronics N.V. 2004. All rights reserved.

11. Descriptors

The ISP1520 hub controller supports the following standard USB descriptors:

•Device

•Device_qualiﬁer

•Other_speed_conﬁguration

•Conﬁguration

•Interface

•Endpoint

•Hub.

The hub returns different descriptors based on the mode of operation: full-speed or

high-speed.

Table 14: Status Change byte: bit allocation

Bit Name Value Description

0 Hub Status Change 0 no change in the hub status

1 change in the hub status detected

1 to 4 Port n Status Change 0 no change in the status of port n (n=1to4)

1 change in the status of port n (n = 1 to 4)

5 to 7 - - not used

Table 15: Device descriptor

Offset

(bytes) Field name Value (Hex) Comments

Full-speed High-speed

0 bLength 12 12 descriptor length = 18 bytes

1 bDescr iptorType 01 01 type = DEVICE

2 bcdUSB 00 00 see USB speciﬁcation Rev.2.0

30202

4 bDeviceClass 09 09 HUB_CLASSCODE

5 bDeviceSubClass 00 00 HubSubClassCode

6 bDeviceProtocol 00 01 HubProtocolHSpeedOneTT

7 bMaxPacketSize0 40 40 packet size = 64 bytes

8 idVendor CC CC Philips Semiconductors vendor ID (04CC); can be

customized

90404

10 idProduct 20 20 the ISP1520 product ID; can be customized

11 15 15

12 bcdDevice 00 00 device ID; can be customized

13 02 02

14 iManufacturer 01 01 can be customized

15 iProduct 02 02 can be customized

16 iSerialNumber 03 03 can be customized; this value must be unique

17 bNumConﬁgurations 01 01 one conﬁguration

Contents

Main ISP1520 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 51 6. Block diagram Fig 1. Block diagram. ISP1520 Philips Semiconductors ISP1520 Product data Rev. 03 24 November 2004 5 of 51 7. Pinning information ISP1520BD Fig 2. Pin conguration. 7.2 Pin description 7.1 Pinning Page ISP1520 Hub Demo Board Users Guide 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. POR EXTERNAL CLOCK A 9. Conguration selections 9.1 Conguration through I/O pins Page Philips Semiconductors ISP1520 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 Page Philips Semiconductors ISP1520 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 5 V; V =V ; V 17. Application information 17.1 Descriptor conguration selection ISP1520 Fig 18. Adjusting analog overcurrent detection limit (optional). ISP1520 17.3 Self-powered hub congurations ISP1520 Fig 19. Self-powered hub; individual port power switching; individual overcurrent detection. Fig 20. Self-powered hub; ganged port power switching; global overcurrent detection. ISP1520 18. Test information DMn D Fig 22. Full-speed test circuit. Fig 21. High-speed transmitter and receiver test circuit. 19. Package outline LQFP64: plastic low profile quad flat package; 64 leads; body 10 x 10 x 1.4 mm SOT314-2 Fig 23. LQFP64 package outline. c 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 Contact information 22. Data sheet status 23. Denitions 24. Disclaimers 25. Licenses 26. Trademarks Contents