
5
Rev 1.9.1 Feb.09
Proprietary and Confidential
61
In the event of a discrepancy in values between this guide and the Product Specification Document (PSD), the PSD takes precedence.
5: Host / Module Interfaces
This
chapter
provides
information
about
specific
host
interface
pin
assignments,
the
host
‐
module
communication
interface
(USB
interface),
LED
outputs,
USIM
interface,
and
lists
extended
AT
commands
that
may
be
useful
for
hardware
integration
testing.
Host interface pin details
Note: On any given interface (USB, USIM, etc.) leave unused inputs
and outputs as no-connects.
Detailed
connector
pin
information
is
available
in
the
product
specification
documents
for
each
module—refer
to
these
documents
when
integrating
modules
into
your
host
devices.
The
following
are
specific
integration
considerations
relating
to
the
host
interface
connector
pins:
•
On
any
given
interface
(USB,
USIM,
etc.),
leave
unused
inputs
and
outputs
as
no
‐
connects.
•
describes
MC8775V
/
MC8785V
/
MC8790V
/
MC8791V
/
MC8792V
‐
specific
pins
that
are
rated
for
2.6
V.
Reference
these
pins
to
the
MSM_2.6
V
rail
(pin
11)
as
the
maximum
limit.
Table 5-1: MC8775V / MC8785V / MC8790V / MC8791V /
MC8792V 2.6 V connector pins
a
Pin
Signal name
Description
1
MIC_P
Microphone Positive
3
MIC_N
Microphone Negative
6
GPIO_1
General Purpose I/O
b
16
GPIO_2
General Purpose I/O
a
22
AUXV1
Auxiliary Voltage 1
28
GPIO_3
General Purpose I/O
a
33
MDL_RESET_N
Reset
44
GPIO_4
General Purpose I/O
a
45
CTS1 / PCM_CLK
UART Clear To Send
or
PCM Clock