Mobile Tech Co. Ltd 64MXFWBF110A Manuale Utente
13
52
TXD1
UART1-Transmit
Data
Data
51
RXD1
UART-Receive
Data
Data
50
TXD2
UART2-Transmit
Data
Data
54
RXD2
UART2-Receive
Data
Data
53
TXD3
UART3-Transmit
Data
Data
49
RXD3
UART3-Receive
Data
Data
47*
CTS
UART1-Clear
To
Send
48*
RTS
UART1-Request
To Send
To Send
Notice: CTS&RTS
CTS&RTS
CTS&RTS
CTS&RTS tttthe
he
he
he power
power
power
power domian
domian
domian
domian of
of
of
of these
these
these
these 2
2
2
2 pins
pins
pins
pins are
are
are
are VDD_EMI.
VDD_EMI.
VDD_EMI.
VDD_EMI. Don't
Don't
Don't
Don't connect
connect
connect
connect these
these
these
these 2
2
2
2 pins
pins
pins
pins to
to
to
to
2.8V
2.8V
2.8V
2.8V UART
UART
UART
UART interface
interface
interface
interface for
for
for
for the
the
the
the purpose
purpose
purpose
purpose of
of
of
of HardWare
HardWare
HardWare
HardWare flow
flow
flow
flow control.If
control.If
control.If
control.If you
you
you
you need
need
need
need 2.8V
2.8V
2.8V
2.8V Hardware
Hardware
Hardware
Hardware flow
flow
flow
flow
control
control
control
control ,,,, please
please
please
please use
use
use
use the
the
the
the pin
pin
pin
pin mux
mux
mux
mux of
of
of
of KROW3
KROW3
KROW3
KROW3 and
and
and
and KCOL3
KCOL3
KCOL3
KCOL3 or
or
or
or UTXD2
UTXD2
UTXD2
UTXD2 and
and
and
and URXD2.
URXD2.
URXD2.
URXD2.
The reference design of standard serial port level witching circuit is as follow figure:
Figure2
Figure2
Figure2
Figure2 The
The
The
The reference
reference
reference
reference diagram
diagram
diagram
diagram of
of
of
of standard
standard
standard
standard serial
serial
serial
serial port
port
port
port level
level
level
level switching
switching
switching
switching circuit
circuit
circuit
circuit
3.7.
3.7.
3.7.
3.7. Audio
Audio
Audio
Audio interfaces
interfaces
interfaces
interfaces
The module provides two audio channels:
EAR and MIC, used for microphone and receiver;
AUXI and AU_MOUT, used for line in and line out;
The audio should be far away from the radio part to reduce TD noise from radio.
The audio pins definitions are as follow table:
EAR and MIC, used for microphone and receiver;
AUXI and AU_MOUT, used for line in and line out;
The audio should be far away from the radio part to reduce TD noise from radio.
The audio pins definitions are as follow table:
Table
Table
Table
Table5:
5:
5:
5: Audio
Audio
Audio
Audio interface
interface
interface
interface of
of
of
of the
the
the
the MD251
MD251
MD251
MD251
Pin
Name
Function
Pin
Name
Function
4
MICP0
Microphone
5
MICN0
Microphone