參數(shù)資料
型號: ISP1521
廠商: NXP Semiconductors N.V.
英文描述: Hi-Speed Universal Serial Bus hub controller
中文描述: 高速通用串行總線控制器樞紐
文件頁數(shù): 31/53頁
文件大?。?/td> 270K
代理商: ISP1521
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:
Bit
0
Get hub configuration response
Function
configuration value
Value
0
1
0
Description
device is not configured
device is configured
-
1 to 7
reserved
Table 27:
Bit
0
1
Get device status response
Function
self-powered
remote wake-up
Value
1
0
1
0
Description
self-powered
disabled
enabled
-
2 to 15
reserved
Table 28:
Bit
0 to 15
Get interface status response
Function
reserved
Value
0
Description
-
Table 29:
Bit
0
Get endpoint status response
Function
halt
Value
0
1
0
Description
endpoint is not halted
endpoint is halted
-
1 to 15
reserved
Table 30:
Bit
0
Get hub status response
Function
local power source
Value
0
1
0
1
0
0
1
Description
local power supply good
local power supply lost (inactive)
no overcurrent condition currently exists
a hub overcurrent condition exists
-
no change in the local power status
local power status has changed
1
overcurrent indicator
2 to 15
16
reserved
local power status change
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