Hitachi H8/3048 Hardware Manual page 641

Single-chip microcomputer
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18.11 Notes on Ordering Masked ROM Version Chip
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When ordering the H8/3048 Series chips with a masked ROM, note the following.
When ordering through an EPROM, use a 128-kbyte one.
Fill all the unused addresses with H'FF as shown in figure 18-33 to make the ROM data size
128 kbytes for all H8/3048 Series chips, which incorporate different sizes of ROM. This
applies to ordering through an EPROM and through electrical data transfer.
HD6433048
(ROM: 128 kbytes)
Address:
H'00000–1FFFF
H'00000
H'1FFFF
Note: * Program H'FF to all addresses in these areas.
Figure 18-33 Masked ROM Addresses and Data
HD6433047
(ROM: 96 kbytes)
Address:
H'00000–17FFF
H'00000
H'17FFF
H'18000
Not used *
H'1FFFF
632
HD6433045
(ROM: 64 kbytes)
(ROM: 32 kbytes)
Address:
H'00000–0FFFF
H'00000
H'0FFFF
H'10000
Not used *
H'1FFFF
HD6433044
Address:
H'00000–07FFF
H'00000
H'07FFF
H'08000
Not used *
H'1FFFF

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