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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
Not used
(1-kbyte work area
for flash memory
programming)
Internal I/O register
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
Not used 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)