Hitachi H8/3690 Manuel D’Utilisation

Rev. 1.0, 07/01, page 8 of 372

2.1

Address Space and Memory Map

The address space of this LSI is 64 kbytes, which includes the program area and the data area.
Figures 2-1 show the memory map.

Interrupt vector

On-chip ROM

(32 kbytes)

Not used

(1-kbyte work area

for flash memory

programming)

Internal I/O register

H'0000
H'0033
H'0034

H'7FFF

H'F780

H'F730

H'F74F

H'FB7F

H'FF7F
H'FF80

H'FB80

H'FFFF

HD64F3694G, HD64F3694

(Flash memory version)

HD6433690G, HD6433690

(Mask ROM version)

HD6433691G, HD6433691

(Mask ROM version)

Interrupt vector

On-chip ROM

(8 kbytes)

Not used

On-chip RAM

(512 bytes)

Internal I/O register

H'0000
H'0033
H'0034

H'FD80

H'FF7F
H'FF80

H'FFFF

H'1FFF

Interrupt vector

On-chip ROM

(12 kbytes)

Not used

On-chip RAM

(512 bytes)

Internal I/O register

H'0000
H'0033
H'0034

H'FD80

H'FF7F
H'FF80

H'FFFF

H'2FFF

Internal I/O register

H'F730

H'F74F

Internal I/O register

H'F730

H'F74F

(1-kbyte user area)

On-chip RAM

(2 kbytes)

Figure 2-1 Memory Map(1)