Datasheet

AD5530/AD5531
Rev. B | Page 16 of 20
LDAC
is controlled by the PC6 port output. The DAC can be
updated after each 2-byte transfer by bringing
LDAC
low. This
example does not show other serial lines for the DAC. If
CLR
were used, it could be controlled by port output PC5. To read
data back from the DAC register, the SDO line can be
connected to MISO of the MC68HC11, with
RBEN
tied to
another port output controlling and framing the readback
data transfer.