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ISP1521 Datasheet(PDF) 31 Page - NXP Semiconductors

Part # ISP1521
Description  Hi-Speed Universal Serial Bus hub controller
PDF  53 Pages
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Manufacturer  PHILIPS [NXP Semiconductors]
Direct Link  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

ISP1521 Datasheet(HTML) 31 Page - NXP Semiconductors

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Philips Semiconductors
ISP1521
Hi-Speed USB hub controller
Product data
Rev. 03 — 24 November 2004
31 of 53
9397 750 13702
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.3.2
Get device status
This request returns two bytes of data; see Table 27.
12.3.3
Get interface status
The request returns two bytes of data; see Table 28.
12.3.4
Get endpoint status
The request returns two bytes of data; see Table 29.
12.3.5
Get hub status
The request returns four bytes of data; see Table 30.
Table 26:
Get hub configuration response
Bit
Function
Value
Description
0
configuration value
0
device is not configured
1
device is configured
1 to 7
reserved
0
-
Table 27:
Get device status response
Bit
Function
Value
Description
0
self-powered
1
self-powered
1
remote wake-up
0
disabled
1
enabled
2 to 15
reserved
0
-
Table 28:
Get interface status response
Bit
Function
Value
Description
0 to 15
reserved
0
-
Table 29:
Get endpoint status response
Bit
Function
Value
Description
0
halt
0
endpoint is not halted
1
endpoint is halted
1 to 15
reserved
0
-
Table 30:
Get hub status response
Bit
Function
Value
Description
0
local power source
0
local power supply good
1
local power supply lost (inactive)
1
overcurrent indicator
0
no overcurrent condition currently exists
1
a hub overcurrent condition exists
2 to 15
reserved
0
-
16
local power status change
0
no change in the local power status
1
local power status has changed



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