HD6473258F10V Datasheet, PDF (29/301 Pages) Renesas Technology Corp – Hitachi Single-Chip Microcomputer

Mode 1
Expand mode without on-chip ROM
Mode 2
Expand mode with on-chip ROM
H'0000
H'002F
H'0030
Vector table
H'0000
H'002F
H'0030
Vector table
H'0000
H'002F
H'0030
Mode 3
Single-chip mode
Vector table
H'F77F
H'F780
External address
space
H'BFFF
H'C000
H'F77F
H'F780
On-chip ROM,
48 Kbytes
H'BFFF
External address
space
H'F780
On-chip ROM,
48 Kbytes
On-chip RAM*,
2 Kbytes
On-chip RAM*,
2 Kbytes
On-chip RAM,
2 Kbytes
H'FF7F
H'FF80
H'FF8F
H'FF90
H'FF9F
H'FFA0
H'FFAF
H'FFB0
H'FFFF
External address space
On-chip register field
External address space
On-chip register field
H'FF7F
H'FF80
H'FF8F
H'FF90
H'FF9F
H'FFA0
H'FFAF
H'FFB0
H'FFFF
External address space
H'FF7F
On-chip register field
External address space
H'FF90
H'FF9F
H'FFB0
On-chip register field
H'FFFF
On-chip register field
On-chip register field
* External memory can be accessed at these addresses when the RAME bit in the system control
register (SYSCR) is cleared to 0.
Figure 2-2. H8/3256 Address Space Map
Fig. 2-2
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