Overview Of Mask Rom; Block Diagram - Hitachi H8/3022 Hardware Manual

15.12

Overview of Mask ROM

15.12.1 Block Diagram

Figure 15-20 shows a block diagram of the ROM.
482
Internal data bus (upper 8 bits)
Internal data bus (lower 8 bits)
H'00000
H'00002
H'3FFFE
Even addresses
Figure 15-20 Block Diagram of ROM (H8/3022)
H'00001
H'00003
On-chip ROM
H'3FFFF
Odd addresses