Sony Ericsson GR64 User Manual
Page 59
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5.11.4 UART3 (DTM3, DFM3)
Pin
Name
Direction
Function
43
DTM3
Input
Data To Module from host (UART3)
44
DFM3
Output
Data From Module to host (UART3)
UART 3 consists of a full duplex serial communication port with transmission and
reception lines.
Timing and electrical signals characteristics are the same as for UART1, DTM1 and
DFM1, including the baud rate range and the capability to auto-baud.
5.11.4.1
Transmitted Data (DTM3)
DTM3 is used by the application to send data to the wireless modem via UART3. It
has the same electrical characteristics the equivalent signal in UART1.
5.11.4.2
Received Data (DFM3)
DFM3 is used to send data to the application via UART3. It has the same electrical
characteristics as the equivalent signal in UART1.