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AD1445 multipurpose pins driven by control port

Question asked by rong on Oct 8, 2009
Latest reply on Oct 14, 2009 by BrettG



On AD1445, we want to use some of the multipurpose pins as digital output pins, and we want them driven by the control port, i.e. the I2C interface. To control those outputs, the datasheet says (Rev A, page 67) we can read/write the addresses listed in Table 64, but what's confusing me is Table 64 is just a list of control registers used for pin modes selection. Also, those registers are 16-bit, you can't read/write 5.23 formatted data from/to them as mentioned in the datasheet. I guess it's referring to some other addresses, but where? Thank you.