SH7065 Datasheet, PDF (812/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 21 XRAM and YRAM
Internal data bus (CDB) (32 bits)
Internal data bus (IDB) (32 bits)
H'FFFFA000
H'FFFFA004
H'FFFFA001
H'FFFFA005
H'FFFFA002
H'FFFFA006
H'FFFFA003
H'FFFFA007
YRAM
H'FFFFAFFC
H'FFFFAFFD
H'FFFFAFFE
H'FFFFAFFF
Y data bus (16 bits)
Figure 21.2 Block Diagram of YRAM
21.2 Operation
When addresses H'FFFF8000 to H'FFFF8FFF are accessed, XRAM is accessed, and when
addresses H'FFFFA000 to H'FFFFAFFF are accessed, YRAM is accessed.
Rev. 5.00 Sep 11, 2006 page 790 of 916
REJ09B0332-0500