參數(shù)資料
型號(hào): ISP1520
廠(chǎng)商: NXP Semiconductors N.V.
英文描述: Hi-Speed Universal Serial Bus hub controller
中文描述: 高速通用串行總線(xiàn)控制器樞紐
文件頁(yè)數(shù): 30/51頁(yè)
文件大?。?/td> 259K
代理商: ISP1520
Philips Semiconductors
ISP1520
Hi-Speed USB hub controller
Product data
Rev. 02 — 04 May 2004
30 of 51
9397 750 11689
Koninklijke Philips Electronics N.V. 2004. All rights reserved.
12.3.6
Get port status
This request returns four bytes of data. The first word contains the port status bits
(wPortStatus), and the next word contains the port status change bits
(wPortChange). The contents of wPortStatus is given in
Table 31
, and the contents of
wPortChange is given in
Table 32
.
16
local power status change
0
1
0
1
0
no change in the local power status
local power status has changed
no change in overcurrent
overcurrent status has changed
-
17
overcurrent indicator change
18 to 31
reserved
Table 30:
Bit
Get hub status response
…continued
Function
Value
Description
Table 31:
Bit
0
Get port status response (wPortStatus)
Function
current connect status
Value
0
1
0
1
0
1
0
1
0
1
0
0
1
0
Description
no device is present
a device is present on this port
port is disabled
port is enabled
port is not suspended
port is suspended
no overcurrent condition exists
an overcurrent condition exists
reset signaling is not asserted
reset signaling is asserted
-
port is in the powered-off state
port is not in the powered-off state
full-speed or high-speed device is
attached
low-speed device is attached
full-speed device is attached
high-speed device is attached
not in the port test mode
in the port test mode
displays default colors
displays software controlled color
-
1
port enabled or disabled
2
suspend
3
overcurrent indicator
4
reset
5 to 7
8
reserved
port power
9
low-speed device attached
1
0
1
0
1
0
1
0
10
high-speed device attached
11
port test mode
12
port indicator control
13 to 15 reserved
相關(guān)PDF資料
PDF描述
ISP1520BD Hi-Speed Universal Serial Bus hub controller
ISP1521 Hi-Speed Universal Serial Bus hub controller
ISP1521BE Hi-Speed Universal Serial Bus hub controller
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ISP1561BM ISP1561BM
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