I.e., it looks like a 16-bit address space (A17 to A23 = shadow?)
Regarding reception and all the tables, allocations to space A16 to A23 is also possible.
A16 to A23 are pins shared with higher data I/O in the word mode.
Therefore, it is necessary to perform address latching to external.
Also, the order of H, M, and L in each table can be changed with the DBOM parameter.