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HUAWEI MU739 HSPA+ LGA Module
Hardware Guide
Pin
No.
14
15
41
44
HSIC interface is mainly used signal transfer between the IC on the board, decreasing
the USB power consumption. It's recommended the PCB circuit length shorter than
normal, not exceed 10 cm.
There are five status of bus conditions that are used to indicate operation.
Table 3-10 Status of bus conditions（TBD）
Condition
Idle
Connect
Resume
Suspend
Reset
Issue 01 (2011-08-24)
Pin Name
I/O
HSIC_HOST_
I
ACTIVE
HSIC_SLAVE_
I
WAKEUP
HSIC_HOST_
O
WAKEUP
HSIC_SUSPEND_
O
REQUEST
Strobe
H
L
L
H
L
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Copyright © Huawei Technologies Co., Ltd.
Description of the Application Interfaces
Description
HSIC Host Active;
Inactive: the host
controller is switched
off;
Active: the host
controller is switched
on. Used to
synchronize
enumeration.
HSIC Slave Wakeup,
used by MU739 in L0
to indicate that link can
be switched to L2
because MU739 has
no data to transfer.
Used by MU739 to
resume link from L2 or
L3 to L0 when data is
available on MU739.
Used by CP in L0 to
indicate that link can
be switched to L2
because CP has no
data to transfer.
Data
L
H
H
L
L
DC Characteristics (V)
Min
Typical
Max
-0.3
1.8
2.1
-0.3
1.8
2.1
-0.3
1.8
2.1
-0.3
1.8
2.1
35
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