HD64F3437TF16 Datasheet, PDF (92/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

Mode 1
Expanded Mode without
On-Chip ROM
H'0000
H'004B
H'004C
Vector table
H'0000
H'004B
H'004C
Mode 2
Expanded Mode with
On-Chip ROM
Vector table
H'0000
H'004B
H'004C
Mode 3
Single-Chip Mode
Vector table
On-chip ROM
32,768 bytes
On-chip ROM
32,768 bytes
External address space
H'7FFF
H'8000
H'7FFF
H'8000
Reserved^*1
H'EF7F
H'EF80
Reserved^*1
External address space
H'F77F
H'F780
Reserved^{*1, *2}
H'FB7F
H'FB80
On-chip RAM ^*2 ,
H'FF7F
1,024 bytes
H'FF80
H'FF87
External address space
H'FF88
On-chip register field
H'FFFF
H'F77F
H'F780
Reserved^{*1, *2}
H'FB7F
H'FB80
On-chip RAM ^*2 ,
H'FF7F
H'FF80
H'FF87
H'FF88
1,024 bytes
External address space
On-chip register field
H'FFFF
H'F77F
H'F780
H'FB80
H'FF7F
H'FF88
H'FFFF
Reserved^*1
On-chip RAM
1,024 bytes
On-chip register field
Notes: *1 Do not access reserved areas.
*2 External memory can be accessed at these addresses when the RAME bit in the system
control register (SYSCR) is cleared to 0.
Figure 3.3 H8/3434 Address Space Map
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