HD6432621 Hitachi, HD6432621 Datasheet - Page 717
HD6432621
Manufacturer Part Number
HD6432621
Description
(HD64F262x Series) 16-Bit Microcomputer
Manufacturer
Hitachi
Datasheet
1.HD6432621.pdf
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19.14
The mask ROM version does not have the internal registers for flash memory control that are
provided in the F-ZTAT version. Table 19-23 lists the registers that are present in the F-ZTAT
version but not in the mask ROM version. If a register listed in table 19-23 is read in the mask
ROM version, an undefined value will be returned. Therefore, if application software developed
on the F-ZTAT version is switched to a mask ROM version product, it must be modified to ensure
that the registers in table 19-23 have no effect.
Table 19-23 Registers Present in F-ZTAT Version but Absent in Mask ROM Version
Register
Flash memory control register 1
Flash memory control register 2
Erase block register 1
Erase block register 2
RAM emulation register
Flash memory power control register
Note on Switching from F-ZTAT Version to Mask ROM Version
Abbreviation
FLMCR1
FLMCR2
EBR1
EBR2
RAMER
FLPWCR
Address
H'FFA8
H'FFA9
H'FFAA
H'FFAB
H'FEDB
H'FFAC
673
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