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Section 6 ROM
Rev. 6.00 Sep 12, 2006 page 118 of 526
REJ09B0326-0600
6.5.3
Erase Block Register 2 (EBR2)
EBR2 is an 8-bit register that specifies small flash-memory blocks for programming or erasure.
EBR2 is initialized to H'00 upon reset, in sleep mode, subsleep mode, watch mode, and standby
mode, and when 12 V is not applied to FV
PP
. When a bit in EBR2 is set to 1, the corresponding
block is selected and can be programmed and erased. The erase block map is shown in figure 6.7,
and the correspondence between bits and erase blocks is shown in table 6.8.
Bit
7 6 5 4 3 2 1 0
SB7 SB6 SB5 SB4 SB3 SB2 SB1 SB0
Initial
value 0 0 0 0 0 0 0 0
Read/Write R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
R/W
*
Note:
*
Word access cannot be used on this register; byte access must be used. For
information on access to this register, see note 11 in section 6.9, Flash Memory
Programming and Erasing Precautions. LB3 is invalid in the H8/3643F, and LB3 and
LB2 are invalid in the H8/3642AF.
Bits 7 to 0
Small Block 7 to 0 (SB7 to SB0):
These bits select small blocks (SB7 to SB0) to be
programmed and erased.
Bits 7 to 0:
SB7 to SB0
Description
0
Block SB7 to SB0 is not selected
(initial value)
1
Block SB7 to SB0 is selected
Содержание F-ZTAT H8/3642A Series
Страница 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Страница 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Страница 21: ...Rev 6 00 Sep 12 2006 page xix of xx Appendix E Product Code Lineup 522 Appendix F Package Dimensions 524 ...
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Страница 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Страница 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Страница 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Страница 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Страница 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Страница 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...