Hardware manual

Rev. 3.0, 09/98, page 58 of 361
H'FFFF
H'FF88
H'FF87
H'FF80
H'FF7F
H'FB80
H'FB7F
H'F780
H'F77F
H'0048
H'0047
H'0000
H'FFFF
H'FF88
H'FF87
H'FF80
H'FF7F
H'FB80
H'FB7F
H'F780
H'F77F
H'FFFF
H'FF88
H'FF7F
H'FB80
H'C000
H'BFFF
H'8000
H'7FFF
H'0048
H'0047
H'0000
H'0048
H'0047
H'0000
Mode 1
Expanded Mode without
On-Chip ROM
Mode 2
Expanded Mode with
On-Chip ROM
Mode 3
Single-Chip Mode
Vector Table
On-Chip ROM,
32k bytes
H'7FFF
Vector Table
Vector Table
External Address Space
On-Chip ROM,
32k bytes
Reserved*1
External Address Space
Reserved*1,*2
Reserved*1,*2
On-Chip RAM*2,
1k byte
On-Chip RAM*2,
1k byte
On-Chip RAM,
1k byte
External Address Space
External Address Space
On-Chip Register Field
On-Chip Register Field
On-Chip Register Field
Notes: 1.
2.
Do not access these reserved areas.
External memory can be accessed at these addresses when the RAME bit in
the system control register (SYSCR) is cleared to 0.
Figure 3.2 H8/337 Address Space Map