Cache RAM

Cache RAM is a region of 512 bytes on the Super FX. Access to it is six times faster than Game Pak ROM or Game Pak RAM.¹ It is divided into 32 blocks, each block being 16 bytes.²

On the S-CPU, it is mapped to $xx:3100-$xx:32FF ($xx = $00-$3F, $80-$BF).³

See Also

• CACHE
• LJMP (Super FX)

References

1. page 2-6-9 of Book II of the official Super Nintendo development manual
2. page 2-6-10 of Book II of the official Super Nintendo development manual
3. Cache RAM Access From The Super NES. page 2-6-12 of Book II of the official Super Nintendo development manual
4. Execution in Cache RAM. page 2-6-1 of Book II of the official Super Nintendo development manual