MPC8536E-ANDROID Freescale Semiconductor, MPC8536E-ANDROID Datasheet - Page 1357
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MPC8536E-ANDROID
Manufacturer Part Number
MPC8536E-ANDROID
Description
HARDWARE/SOFTWARE ANDROID OS
Manufacturer
Freescale Semiconductor
Series
PowerQUICC ™r
Type
MPUr
Datasheets
1.MPC8536EBVTAVLA.pdf
(127 pages)
2.MPC8536EBVTAVLA.pdf
(2 pages)
3.MPC8536EBVTAVLA.pdf
(1706 pages)
Specifications of MPC8536E-ANDROID
Contents
Board
For Use With/related Products
MPC8536
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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21.3.2.12 ULPI Register Access (ULPI VIEWPORT)
The register provides indirect access to the ULPI PHY register set. Although the controller modules
perform access to the ULPI PHY register set, there may be extraordinary circumstances where software
may need direct access. Be advised that writes to the ULPI through the ULPI viewport can substantially
harm standard USB operations. Currently no usage model has been defined where software should need
to execute writes directly to the ULPI. Note that executing read operations though the ULPI viewport
should have no harmful side effects to standard USB operations. Also note that if the ULPI interface is not
enabled, this register will always read zeros.
ULPI VIEWPORT is shown in
Freescale Semiconductor
Offset 0x170
Reset
Reset
26–24
23–16
Bits
31
30
29
28
27
W
W
R
R
ULPIWU ULPIRUN ULPIRW
31
15
0
ULPIADDR
ULPIPORT
ULPIRUN
ULPIWU
ULPIRW
ULPISS
Name
—
30
0
MPC8536E PowerQUICC III Integrated Processor Reference Manual, Rev. 1
ULPIDATRD
Figure 21-18. ULPI Register Access (ULPI VIEWPORT)
29
0
ULPI Wake Up. Writing 1 to this bit begins the wakeup operation. This bit automatically
transitions to 0 after the wakeup is complete. Once this bit is set, it can not be cleared by
software.
Note: The driver must never execute a wakeup and a read/write operation at the same time.
ULPI Run. Writing 1 to this bit begins a read/write operation. This bit automatically transitions
to 0 after the read/write is complete. Once this bit is set, it can not be cleared by software.
Note: The driver must never execute a wakeup and a read/write operation at the same time.
This bit selects between running a read or write operation to the ULPI.
0 Read
1 Write
Reserved, should be cleared.
This bit represents the state of the ULPI interface. Before reading this bit, the ULPIPORT field
should be set accordingly if used with the multi-port host. Otherwise, this field should always
remain 0.
0 Any other state (that is, carkit, serial, low power).
1 Normal Sync State.
For wakeup or read/write operations this value selects the port number to which the ULPI PHY
is attached. Valid values are 0 and 1.
When a read or write operation is commanded, the address of the operation is written to this
field.
Table 21-20. ULPI VIEWPORT Field Descriptions
Figure
28
—
0
ULPISS
21-18.
27
n
26
ULPIPORT
0
0
All zeros
24
0
8
23
0
7
Description
0
0
ULPIDTWR
ULPIADDR
0
Universal Serial Bus Interfaces
0
0
Access: Mixed
0
21-23
16
0
0
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