ISP1520 Просмотр технического описания (PDF) - Philips Electronics

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ISP1520

Hi-Speed Universal Serial Bus hub controller

Philips Electronics 

Philips Semiconductors

ISP1520

Hi-Speed USB hub controller

9397 750 11689

Product data

Table 11: Configuration method

Configuration method

SCL

Internal ROM

ground

External EEPROM

2.2 to 4.7 kΩ pull-up

External microcontroller

driven LOW by the

microcontroller during reset

SDA

ground

2.2 to 4.7 kΩ pull-up

2.2 to 4.7 kΩ pull-up

9.2.3 ROM or EEPROM map

00H

02H

0AH

10H

7FH

80H

FFH

Fig 8. ROM or EEPROM map.

Signature

Device Descriptor

Language ID

String Descriptor

(first Language ID):

iManufacturer string

iProduct string

iSerial Number string

String Descriptor

(second Language ID):

iManufacturer string

iProduct string

iSerial Number string

MLD714

Remark: A 128-byte EEPROM supports one language ID only, and a 256-byte

EEPROM supports two language IDs.

9.2.4 ROM or EEPROM detailed map

Table 12: ROM or EEPROM detailed map

Address Content

(Hex)

Default Example Comment

(Hex) (Hex)

Signature descriptor

00

signature (low

55

-

signature to signify valid data comment

01

signature (high) AA

-

Device descriptor

02

idVendor (low) CC

-

Philips Semiconductors vendor ID

03

idVendor (high) 04

-

04

idProduct (low) 20

-

ISP1520 product ID

05

idProduct (high) 15

-

06

bcdDevice (low) 00

-

07

bcdDevice (high) 02

-

device release; silicon revision

increments this value

08

RSV, iSN, iP, iM -

00

if all the three strings are supported, the

value of this byte is 39H

09

reserved

-

FF

-

String descriptor Index 0 (language ID)

0A

bLength[1]

-

06

two language ID support

Rev. 02 — 04 May 2004

© Koninklijke Philips Electronics N.V. 2004. All rights reserved.

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