HD6473258P10V Datasheet, PDF (33/301 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
H'1FFF
H'2000
H'3FFF
Vector table
On-chip ROM,
8 Kbytes
Reserved ^*2
H'0000
H'002F
H'0030
H'1FFF
Mode 3
Single-chip mode
Vector table
On-chip ROM,
8 Kbytes
External address
space
External address
space
H'FD7F
H'FD80
H'FE7F
H'FE80
H'FF7F
H'FF80
H'FF8F
H'FF90
H'FF9F
H'FFA0
H'FFAF
H'FFB0
H'FFFF
*1 *2
Reserved
On-chip RAM,^*1
256 bytes
External address space
On-chip register field
External address space
On-chip register field
H'FD7F
H'FD80
H'FE7F
H'FE80
H'FF7F
H'FF80
H'FF8F
H'FF90
H'FF9F
H'FFA0
H'FFAF
H'FFB0
H'FFFF
*1 *2
Reserved
On-chip RAM,^*1
256 bytes
External address space
On-chip register field
External address space
On-chip register field
H'FD80
H'FE80
H'FF7F
*2
Reserved
On-chip RAM,
256 bytes
H'FF90
H'FF9F
On-chip register field
H'FFB0
H'FFFF
On-chip register field
*1 External memory can be accessed at these addresses when the RAME bit in the system control
register (SYSCR) is cleared 0.
*2 Data read or write is not permitted in these modes.
Figure 2-6. H8/322 Address Space Map
Fig. 2-6
23