MB86290A Datasheet, PDF (37/184 Pages) Fujitsu Component Limited. – Graphics Controller Hardware Specifications

3.6 Memory Map
The following table shows the memory map of MB86290A to the host CPU
address field. The physical address is mapped differently in each CPU type
(SH3, SH4 or V832).
64 MB Field (SH3/SH4)
16 MB Field (V832)
32 MB-256 KB
Graphics
memory
field
0000000-1FBFFFF 16 MB-256 KB
Graphics
memory
field
0000000-0FBFFFF
256 KB
Register field
1FC0000-1FFFFFF
256 KB
Register field
0FCFFFF-0FFFFFF
32 MB
Reserved
2000000-3FFFFFF
Fig. 3.2 Memory Map
Table 3-1 Address Mapping in SH3/SH4 Mode
Size
Resource
Base address
32 MB to 256 KB Graphics memory
00000000
64 KB
Host interface registers
01FC0000
64 KB
Display engine registers
01FD0000
64 KB
Internal texture memory
01FE0000
64 KB
Drawing engine registers
01FF0000
32 KB
Reserved *
02000000
(Name)
(HostBase)
(DisplayBase)
(TextureBase)
(DrawBase)
The memory contents of 00000000-01FFFFFF are duplicated in this reserved field.
Table 3-2 Address Mapping in V832 Mode
Size
Resource
Base address
32 MB to 256KB Graphics memory
00000000
64 KB
Host interface registers
00FC0000
64 KB
Display engine registers
00FD0000
64 KB
Internal texture memory
00FE0000
64 KB
Drawing engine registers
00FF0000
(Name)
(HostBase)
(DisplayBase)
(TextureBase)
(DrawBase)
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