We installed a TCA9555PWR onto the TI I/O expander EVM and are observing some strange results which we cannot understand. 1) With the TCA9555 installed on the EVM, all three of its address lines are ...

I found it through this URL, looking through it, it seems the book is more a collection of datasheets from 1997 --- not very helpful, all available on ti.com: https ...

0x60 = 0 1 1 0 0 0 0 0 ---> Power-down internal reference buffer + 4v vref + Noninverting input connected to the OPAMPP pin + Power-down op amp After the configuration of all configuration registers, ...