SLAS191A Datasheet, PDF (71/86 Pages) Texas Instruments – Starter Kit Evaluation Kit Manual

5.4 Transmitting One Character
To transmit one character, copy AA55h to memory location 3DEh, or memory location 5DEh for the
MSP430X33x family. Store the character to transmit in RAM-location 020Eh.
TX:
MOV
MOV.B
#0AA55h,&03DEh ; &05DEh for MSP430X33x
#‘a’,&TX_Data ; put char to TX_Data
Call the function TX_Char to transmit the character stored at location 20Eh.
call
&0FFD2h
; call of TX_Char
The function TX_Char includes the call of TX_prep implicit which prepares the half-duplex software UART
to receive. Therefore, it is not necessary to call TX_Prep before calling TX_Char.
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