SH7764 Datasheet, PDF (244/1752 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperHTM RISC Engine Family SH-4A Series

Section 7 Memory Management Unit (MMU)
Table 7.3 Cache Size and Countermeasure for Avoiding Synonym Problems
Cache Size
8 Kbytes
16 Kbytes
32 Kbytes
64 Kbytes
Page Size that can Lead to Synonym
Problems
1 Kbyte
1 Kbyte
1 Kbyte
4 Kbytes
1 Kbyte
4 Kbytes
Bits in VPN that should be Matched
when Writing to UTLB
VPN[1:0]
VPN[11:10]
VPN[12:10]
VPN[12]
VPN[13:10]
VPN[13:12]
Note:
When multiple items of address translation information use the same physical memory to
provide for future expansion of the SuperH RISC engine family, ensure that the
VPN[20:10] values are the same. Also, do not use the same physical address for address
translation information of different page sizes.
Rev. 1.00 Nov. 22, 2007 Page 188 of 1692
REJ09B0360-0100