67
H'00000
H'000FF
H'07FFF
8-bit memory-indirect
addresses
16-bit absolute
addresses (first half)
Mode 5
(1-Mbyte expanded mode with
on-chip ROM enabled)
Mode 7
(single-chip advanced mode)
Mode 6
(16-Mbyte expanded mode with
on-chip ROM enabled)
H'1FFFF
H'20000
H'3FFFF
H'40000
H'5FFFF
H'60000
H'7FFFF
H'80000
H'9FFFF
H'A0000
H'BFFFF
H'C0000
H'DFFFF
H'E0000
Area 0
Area 1
Area 2
Area 3
Area 4
Area 5
Area 6
Area 7
External address
space
Vector area
On-chip ROM
On-chip RAM
*
2
Reserved
*
1
External
address
space
Internal I/O
registers
8-bit absolute addresses
16-bit absolute addresses
(second half)
H'F8000
H'FDF0F
H'FDF10
H'FEF0F
H'FEF10
H'FFF00
H'FFF0F
H'FFF10
H'FFF1B
H'FFF1C
H'FFFFF
H'00000
H'000FF
8-bit memory-indirect
addresses
16-bit absolute
addresses (first half)
Vector area
On-chip ROM
On-chip RAM
Internal I/O
registers
8-bit absolute addresses
16-bit absolute addresses
(second half)
H'FEF10
H'FFF00
H'FFF0F
H'FFF1C
H'FFFFF
H'07FFF
H'1FFFF
H'F8000
Notes:
Reserved
*
1
H'000000
H'0000FF
H'007FFF
8-bit memory-indirect
addresses
16-bit absolute
addresses (first half)
H'01FFFF
H'020000
H'03FFFF
H'040000
H'1FFFFF
H'200000
H'3FFFFF
H'400000
H'5FFFFF
H'600000
H'7FFFFF
H'800000
H'9FFFFF
H'A00000
H'BFFFFF
H'C00000
H'DFFFFF
H'E00000
Area 0
Area 1
Area 2
Area 3
Area 4
Area 5
Area 6
Area 7
External address
space
Vector area
On-chip ROM
On-chip RAM
*
2
Reserved
*
1
External
address
space
Internal I/O
registers
8-bit absolute addresses
16-bit absolute addresses
(second half)
H'FFDF0F
H'FFDF10
H'FFEF0F
H'FFEF10
H'FFFF00
H'FFFF0F
H'FFFF10
H'FFFF1B
H'FFFF1C
H'FFFFFF
Reserved
*
1
1.
2.
Do not access the reserved area.
External addresses can be accessed by disabling on-chip RAM.
Figure 3-3 H8/3020 Memory Map in Each Operating Mode (2)