SH7763 Datasheet, PDF (281/2026 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 7 Caches
7.8 Notes on Using 32-Bit Address Extended Mode
In 32-bit address extended mode, the items described in this section are extended as follows.
1. The tag bits [28:10] (19 bits) in the IC and OC are extended to bits [31:10] (22 bits).
2. An instruction which operates the IC (a memory-mapped IC access and writing to the ICI bit
in CCR) should be located in the P1 or P2 area. The cacheable bit (C bit) in the corresponding
entry in the PMB should be 0.
3. Bits [4:2] (3 bits) for the AREA0 bit in QACR0 and the AREA1 bit in QACR1 are extended to
bits [7:2] (6 bits).
Rev. 1.00 Oct. 01, 2007 Page 215 of 1956
REJ09B0256-0100