According to the datasheet (page 58), TBLWT uses TBLPTR<2:0> to decide whic=
h holding register to fill, and the long write initiated with 55/AA/WR uses=
 TBLPTR<21:3> to decide which write block to write the holding registers in=
to.

You start by loading the address of your first byte into TBLPTR, then you d=
o eight TBLWT*+ instructions. As these are post-incrementing, the last such=
 instruction should roll TBLPTR over an 8-byte boundary, leaving it pointin=
g at the wrong block.
--=20
Christopher Head
--=20
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