In SX Microcontrollers, SX/B Compiler and SX-Key Tool, peterverkaik wrote:

pjv,

For example,
to output a sinewave in 32 8bit DAC-values:
The accumulator approach requires 32*256 interrupt cycles to complete.
If you were to use 8 pins and a R-2R ladder network, then all you need
is mov port,variable to set a DAC value, and the sinewave will be
completed in just 32 interrupt cycles, so you will have a higher frequency
output.

regards peter

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