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MSP430 UART Register Calculator

See our other Electronics Calculators.

This calculator computes the value of the various UART registers for the MSP430 series processors from Texas Instruments. The hardest register value to compute is the modulation register, because it is iteratively computed to minimize the accumulating bit error.  

Enter in the number of bits including the start, parity, data, and stop bits, the frequency of the UART clock and the desired baud rate. 

The cumulative error for each bit is calculated for TX and RX.  


UART Clock KHz
Baud Rate:  KHz
Number of bits (including start, parity, and stop bits)    (<13)

UxMCTL (Modulation Register)
UxBR0 (Baud Rate LSW)
UxBR1 (Baud Rate MSW)

Bit Error Percent

Bit 0
Bit 1
Bit 2
Bit 3
Bit 4
Bit 5
Bit 6
Bit 7
Bit 8
Bit 9
Bit 10
Bit 11
Bit 12

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