5.11.4 UART2 (DTM2, DFM2)

Pin

 

Name

 

Direction

 

Function

 

 

 

 

 

 

 

61

 

RTS2

 

Input

 

Request To Send (UART2)

62

 

CTS2

 

Output

 

Clear To Send (UART2)

63

 

DTM2

 

Input

 

Data To Module from host (UART2)

64

 

DFM2

 

Output

 

Data From Module to host (UART2)

UART 2 consists of a full duplex serial communication port with transmission, reception lines and hardware flow control.

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.

5.11.4.1Transmitted Data (DTM2)

DTM2 is used by the application to send data to the wireless modem via UART2. It has the same electrical characteristics the equivalent signal in UART1.

5.11.4.2Received Data (DFM2)

DFM2 is used to send data to the application via UART2. It has the same electrical characteristics as the equivalent signal in UART1.

5.11.4.3Request to Send (RTS2)

RTS is used to condition the DCE for data transmission. It has the same electrical characteristics as the equivalent signal in UART1.

5.11.4.4Clear To Send (CTS2)

CTS is asserted by the DCE to indicate that the host (DTE) may transmit data. It has the same electrical characteristics as the equivalent signal in UART1.

LZT 123 1836

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