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H'0000
Interrupt vector area
(42 bytes)
H'0029
H'002A
On-chip ROM
*
1
H'7FFF
Not used
H'F020
Internal I/O registers
H'F02B
Not used
H'F740
LCD RAM
(16 bytes)
H'F74F
Not used
H'F780
(1-Kbyte work area for flash
memory programming)
H'FB7F
Internal RAM
*
2
H'FB80
User Area
H'FF7F
H'FF80
Internal I/O registers
(128 bytes)
H'FFFF
Notes:
These examples apply to the H8/38024.
1. On the H8/38024, H8/38124, and H8/38024S, 32 Kbytes and the address is H'7FFF; on the
H8/38023, H8/38123, and H8/38023S, 24 Kbytes and the address is H'5FFF; on the
H8/38022, H8/38122, and H8/38022S, 16 Kbytes and the address is H'3FFF; on the
H8/38021, H8/38121, and H8/38021S, 12 Kbytes and the address is H'2FFF; on the
H8/38020, H8/38120, and H8/38020S, 8 Kbytes and the address is H'1FFF.
2. On the H8/38021, H8/38121, H8/38021S, H8/38020, H8/38120, and H8/38020S, 512 bytes
and the address is H'FD80.
3. Only the HD64F38024, HD64F38024R, and HD64F38124 are equipped with internal I/O
registers from H'F020 to H'F02B and on-chip RAM from H'F780 to H'FB7F. Attempting to
access these areas on products other than the HD64F38024, HD64F38024R, and
HD64F38124 will result in access to an empty area.
Figure 2.17 Data Size and Number of States for Access to and from
32 Kbytes
*
3
*
3
1024 bytes
H'FF98 to H'FF9F
H'FFA8 to H'FFAF
On-Chip Peripheral Modules
Access
States
Word
Byte
2
×
2
2
2
2
×
2
×
3
×
2
×
3
×
2
Rev. 6.00, 08/04, page 65 of 628
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