isp1122 NXP Semiconductors, isp1122 Datasheet - Page 18

• Manufacturer Part Number: isp1122
• Description: Isp1122 Universal Serial Bus Stand-alone Hub
• Manufacturer: NXP Semiconductors

Philips Semiconductors
9397 750 07002
Product specification
9.4.1 Get device status
9.4.2 Get configuration
9.4.3 Get interface status
9.4.4 Get hub status
9.4 Hub responses
This section describes the hub responses to requests from the USB host.
The hub returns 2 bytes, see
Table 16: Get device status response
The hub returns 1 byte, see
Table 17: Get configuration response
The hub returns 2 bytes, see
Table 18: Get interface status response
The hub returns 4 bytes, see
Table 19: Get hub status response
Bit #
0
1
2 to 15
Bit #
0
1 to 7
Bit #
0 to 15
Bit #
0
1
2 to 15
16
17
18 to 31
Function
self-powered
remote wake-up
reserved
Function
configuration value
reserved
Function
reserved
Function
local power source
overcurrent indicator
reserved
local power status change
overcurrent indicator change 0
reserved
Rev. 03 — 29 March 2000
Table
Table
Table
Table
17.
16.
18.
19.
Value
0
1
0
1
0
Value
0
1
0
Value
0
Value
0
1
0
1
0
0
1
1
0
Description
bus-powered
self-powered
no remote wake-up
remote wake-up enabled
-
Description
device not configured
device configured
-
Description
-
Description
local power supply good
local power supply lost
no overcurrent condition
hub overcurrent condition detected
-
no change in local power status
local power status changed
no change in overcurrent condition
overcurrent condition changed
-
USB stand-alone hub
© Philips Electronics N.V. 2000. All rights reserved.
ISP1122
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