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ISP1130

Universal Serial Bus compound hub with integrated keyboard controller

Philips Electronics 

Philips Semiconductors

ISP1130

USB compound hub with keyboard controller

8.4 Hub responses

This section describes the hub responses to requests from the USB host.

8.4.1 Get device status

The hub returns 2 bytes, see Table 14.

Table 14: Get device status response

Bit #

Function

Value

0

self-powered

0

1

1

remote wake-up

0

1

2 to 15 reserved

0

Description

bus-powered

hybrid-powered

no remote wake-up

remote wake-up enabled

-

8.4.2 Get configuration

The hub returns 1 byte, see Table 15.

Table 15: Get configuration response

Bit #

Function

Value

0

configuration value

0

1

1 to 7 reserved

0

Description

device not configured

device configured

-

8.4.3 Get interface status

The hub returns 2 bytes, see Table 16.

Table 16: Get interface status response

Bit #

Function

Value

0 to 15 reserved

0

Description

-

8.4.4 Get hub status

The hub returns 4 bytes, see Table 17.

Table 17: Get hub status response

Bit #

Function

Value

0

local power source

0

1

overcurrent indicator

0

1

2 to 15 reserved

0

16

local power status change 0

17

overcurrent indicator change 0

1

18 to 31 reserved

0

Description

local power supply good

no overcurrent condition

hub overcurrent condition detected

-

no change in local power status

no change in overcurrent condition

overcurrent condition changed

-

9397 750 06895

Objective specification

Rev. 01 — 23 March 2000

© Philips Electronics N.V. 2000. All rights reserved.

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