on page 12 and 13 of this datasheet, {R/W, D/I} values are supposed to be {0 1} for write display data, and {1 1} for read display data. 
Also note the DDDD1DDD on page 13. That should be DDDDDDDD, if the specs on page 11 are correct.
Also note the DDDD1DDD on page 13. That should be DDDDDDDD, if the specs on page 11 are correct.
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