參數(shù)資料
型號(hào)： ISP1561BM,557
廠商： ST-ERICSSON
元件分類： 總線控制器
英文描述： UNIVERSAL SERIAL BUS CONTROLLER, PQFP128
封裝： 14 X 14 MM, 1.40 MM HEIGHT, PLASTIC, MS-026, SOT-420-1, LQFP-128
文件頁(yè)數(shù)： 57/103頁(yè)
文件大?。?/td> 457K
代理商： ISP1561BM,557
ISP1561_2
NXP B.V. 2007. All rights reserved.
Product data sheet
Rev. 02 — 5 March 2007
57 of 103
NXP Semiconductors
ISP1561
HS USB PCI Host Controller
Table 83.
HcRhStatus register: bit allocation
Bit
31
30
29
28
27
26
25
24
Symbol
CRWE
reserved
Reset
00000000
Access
R/W
-------
Bit
23
22
21
20
19
18
17
16
Symbol
reserved
CCIC
LPSC
Reset
00000000
Access
------
R/W
Bit
15
14
13
12
11
10
9
8
Symbol
DRWE
reserved
Reset
0
0000000
Access
R/W
-------
Bit
7
6
5
4
3
2
1
0
Symbol
reserved
OCI
LPS
Reset
00000000
Access
------
R
RW
Table 84.
HcRhStatus register: bit description
Bit
Symbol Description
31
CRWE
On write Clear Remote Wake-up Enable: Writing logic 1 clears DRWE
(Device Remote Wake-up Enable). Writing logic 0 has no effect.
30 to 18
-
reserved
17
CCIC
Overcurrent Indicator Change: This bit is set by hardware when a change
has occurred to the OCI (Overcurrent Indicator) eld of this register. The HCD
clears this bit by writing logic 1. Writing logic 0 has no effect.
16
LPSC
On read Local Power Status Change: The root hub does not support the
local power status feature. Therefore, this bit is always logic 0.
On write Set Global Power: In global power mode (Power Switching Mode =
0), logic 1 is written to this bit to turn on power to all ports (clear Port Power
Status). In per-port power mode, it sets Port Power Status only on ports
whose Port Power Control Mask bit is not set. Writing logic 0 has no effect.
15
DRWE
On read Device Remote Wake-up Enable: This bit enables the Connect
Status Change bit as a resume event, causing a state transition
USBSUSPEND to USBRESUME and setting the Resume Detected interrupt.
0 — Connect Status Change is not a remote wake-up event
1 — Connect Status Change is a remote wake-up event
On write Set Remote Wake-up Enable: Writing logic 1 sets DRWE (Device
Remote Wake-up Enable). Writing logic 0 has no effect.
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