ISP1130 Просмотр технического описания (PDF) - Philips Electronics
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ISP1130 Datasheet PDF : 68 Pages
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Philips Semiconductors
ISP1130
USB compound hub with keyboard controller
8.4.5 Get port status
The hub returns 4 bytes. The first 2 bytes contain the port status bits (wPortStatus,
see Table 18). The last 2 bytes hold the port status change bits (wPortChange, see
Table 19).
Table 18: Get port status response (wPortStatus)
Bit #
Function
Value Description
0
current connect status
0
no device present
1
device present on this port
1
port enabled/disabled
0
port disabled
1
port enabled
2
suspend
0
port not suspended
1
port suspended
3
overcurrent indicator
0
no overcurrent condition
1
overcurrent condition detected
4
reset
0
reset not asserted
1
reset asserted
5 to 7 reserved
0
-
8
port power
0
port powered off
1
port power on
9
low-speed device attached 0
full-speed device attached
1
low-speed device attached
10 to 15 reserved
0
-
Table 19: Get port status response (wPortChange)
Bit #
Function
Value Description
0
connect status change
0
no change in current connect status
1
current connect status changed
1
port enabled/disabled
0
no port error
change
1
port disabled by a port error
2
suspend change
0
no change in suspend status
1
resume complete
3
overcurrent indicator change 0
no change in overcurrent status
1
overcurrent indicator changed
4
reset change
0
no change in reset status
1
reset complete
5 to 15 reserved
0
-
8.4.6 Get configuration descriptor
The hub returns 25 bytes containing the configuration descriptor (9 bytes, see
Table 9), the interface descriptor (9 bytes, see Table 10) and the endpoint descriptor
(7 bytes, see Table 11).
8.4.7 Get device descriptor
The hub returns 18 bytes containing the device descriptor, see Table 8.
9397 750 06895
Objective specification
Rev. 01 — 23 March 2000
© Philips Electronics N.V. 2000. All rights reserved.
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