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Universal Serial Bus Interface – On-The-Go Module
Freescale Semiconductor
10-33
10.3.4.13 Configure Flag Register (CONFIGFLAG)
This EHCI register is not used in this implementation. A read from this register returns a constant of a
0x0000_0001 to indicate that all port routings default to this host controller.
10.3.4.14 Port Status and Control Registers (PORTSC
n
)
The USB module contains a single PORTSC register. This register only resets when power is initially
applied or in response to a controller reset. Initial conditions of a port are:
•
No device connected
•
Port disabled
If the port has port power control, this state remains until software applies power to the port by setting port
power to one.
For the USB OTG module in device mode, the USB OTG controller does not support power control. Port
control in device mode is used only for status port reset, suspend, and current connect status. It is also used
to initiate test mode or force signaling, and allows software to place the PHY into low-power suspend
mode and disable the PHY clock.
Address: 0xFC0B_0180 (CONFIGFLAG)
Access: User read-only
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13
12
11
10
9
8
7
6
5
4
3
2
1
0
R 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
W
Reset 0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Figure 10-29. Configure Flag Register (CONFIGFLAG)
Table 10-32. CONFIGFLAG Field Descriptions
Field
Description
31–0
Reserved. (0x0000_0001, all port routings default to this host)
Address: 0xFC0B_0184 (PORTSC1)
Access: User read/write
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
R
PTS
1
0
PSPD
0
PFSC PHCD WKOC WKDS WLCN
PTC
W
Reset
1
1
1
0
1
1
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
R
PIC
PO
PP
LS
HSP
PR
SUSP
FPR
OCC
OCA
PEC
PE
CSC
CCS
W
w1c
w1c
w1c
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
Figure 10-30. Port Status and Control Register (PORTSC1
)
Содержание MCF54455
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Страница 207: ...Power Management 9 16 Freescale Semiconductor ...
Страница 323: ...Reset Controller Module 13 8 Freescale Semiconductor ...
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