Renesas SH7781 - Manual (Page 289)

9. On-Chip Memory
Rev.1.00 Jan. 10, 2008 Page 259 of 1658
REJ09B0261-0100
When the PREF instruction is issued to the OL memory area, the physical address bits [28:10] are
generated in accordance with the LSA0 or LSA1 specification. The physical address bits [9:5] are
generated from the virtual address. The physical address bits [4:0] are fixed to 0. Block transfer is
performed from the external memory specified by these physical addresses to the OL memory.
When the OCBWB instruction is issued to the OL memory area, the physical address bits [28:10]
are generated in accordance with the LDA0 or LDA1 specification. The physical address bits [9:5]
are generated from the virtual address. The physical address bits [4:0] are fixed to 0. Block
transfer is performed from the OL memory to the external memory specified by these physical
addresses.