Datasheet

Section 2 CPU
Rev.5.00 Nov. 02, 2005 Page 12 of 500
REJ09B0027-0500
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.
H'0000
H'0041
H'0042
H'DFFF
H'FB7F
H'FF7F
H'FF80
H'FB80
H'F77F
H'F780
H'F700
H'EFFF
H'E800
H'FFFF
H'FB7F
H'FF7F
H'FF80
H'FB80
H'F77F
H'F780
H'F700
H'FFFF
HD64N3687G
HD64F3687
HD64F3687G
(Flash memory version)
Interrupt vectorInterrupt vectorInterrupt vector
On-chip ROM
(56 kbytes)
On-chip ROM
(16 kbytes)
On-chip ROM
(24 kbytes)
Internal I/O register
Internal I/O register
(1 kbyte work area
for flash memory
programming)
(1 kbyte user area)
On-chip RAM
(2 kbytes)
On-chip RAM
(2 kbytes)
Not used
Not used
Internal I/O register
Internal I/O register
On-chip RAM
(2 kbytes)
On-chip RAM
(1 kbytes)
Not used
Internal I/O register
Internal I/O register
On-chip RAM
(2 kbytes)
On-chip RAM
(1 kbytes)
Not used
Not used Not used
Not used
Not used
H'EFFF
H'E800
HD64F3684
HD64F3684G
(Flash memory version)
Interrupt vector
On-chip ROM
(32 kbytes)
Internal I/O register
Internal I/O register
On-chip RAM
(2 kbytes)
Not used
Not used
H'0000
H'0041
H'0042
H'7FFF
(1 kbyte work area
for flash memory
programming)
(1 kbyte user area)
On-chip RAM
(2 kbytes)
H'0000
H'0041
H'0042
H'3FFF
H'FF7F
H'FF80
H'FB80
H'F77F
H'F700
H'EFFF
H'E800
H'FFFF
HD6433682
HD6433682G
(Mask-ROM version)
H'0000
H'0041
H'0042
H'5FFF
H'FF7F
H'FF80
H'FB80
H'F77F
H'F700
H'EFFF
H'E800
H'FFFF
HD6433683
HD6433683G
(Mask-ROM version)
Figure 2.1 Memory Map (1)