You have some doubts regarding the interfacing of the devices - but does it cause a problem? We would be guessing as to a possible solution as you have not told us what micro you are using - the type of micro and the clock rate has a large impact on interfacing. Most of the answers to your question are in the datasheets. As to whether you use software to control the /wr /rd lines as port pins or whether you use movx to do a bus cycle depends on many factors that you haven't quite explained to us.