Notes On Ordering Mask Rom Version Chip - Renesas H8/3067 Series User Manual

Section 18 ROM
18.11

Notes on Ordering Mask ROM Version Chip

When ordering the H8/3067 Group chips with a mask 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 figure18.27 to make the ROM data size
128 kbytes for all H8/3067 Group chips, which incorporate different sizes of ROM. This
applies to ordering through an EPROM and through electrical data transfer.
• The flash memory and flash memory R versions only registers for flash memory control
(FLMCR, EBR, RAMCR, and FLMSR) are not provided in the mask ROM versions. Reading
the corresponding addresses in a mask ROM version will always return 1s, and writes to these
addresses are disabled. This must be borne in mind when switching from the flash memory and
flash memory R versions to a mask ROM version.
HD6433067
(ROM:128kbytes)
Address:
H'00000-1FFFF
Note:
*
Rev. 4.00 Jan 26, 2006 page 664 of 938
REJ09B0276-0400
HD6433066
(ROM:96kbytes)
Address:
H'00000-17FFF
H'00000
Not used
H'1FFFF
Program H'FF to all addresses in these areas.
Figure 18.29 Mask ROM Addresses and Data
HD6433065
(ROM:64kbytes)
Address:
H'00000-0FFFF
H'00000
H'17FFF
Not used
H'18000
*
H'1FFFF
H'00000
H'0FFFF
H'10000
*
H'1FFFF