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Section 6 ROM
Rev. 6.00 Sep 12, 2006 page 117 of 526
REJ09B0326-0600
6.5.2
Erase Block Register 1 (EBR1)
EBR1 is an 8-bit register that specifies large flash-memory blocks for programming or erasure.
EBR1 is initialized to H'F0 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 EBR1 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
LB3 LB2 LB1 LB0
Initial
value 1 1 1 1 0 0 0 0
Read/Write
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 4
Reserved:
Bits 7 to 4 are reserved; they are always read as 1, and cannot be
modified.
Bits 3 to 0
Large Block 3 to 0 (LB3 to LB0):
These bits select large blocks (LB3 to LB0) to be
programmed and erased.
Bits 3 to 0:
LB3 to LB0
Description
0
Block LB3 to LB0 is not selected
(initial value)
1
Block LB3 to LB0 is selected
Summary of Contents for F-ZTAT H8/3642A Series
Page 6: ...Rev 6 00 Sep 12 2006 page iv of xx ...
Page 8: ...Rev 6 00 Sep 12 2006 page vi of xx ...
Page 22: ...Rev 6 00 Sep 12 2006 page xx of xx ...
Page 124: ...Section 5 Power Down Modes Rev 6 00 Sep 12 2006 page 102 of 526 REJ09B0326 0600 ...
Page 188: ...Section 6 ROM Rev 6 00 Sep 12 2006 page 166 of 526 REJ09B0326 0600 ...
Page 190: ...Section 7 RAM Rev 6 00 Sep 12 2006 page 168 of 526 REJ09B0326 0600 ...
Page 298: ...Section 9 Timers Rev 6 00 Sep 12 2006 page 276 of 526 REJ09B0326 0600 ...
Page 378: ...Section 12 A D Converter Rev 6 00 Sep 12 2006 page 356 of 526 REJ09B0326 0600 ...
Page 446: ...Section 13 Electrical Characteristics Rev 6 00 Sep 12 2006 page 424 of 526 REJ09B0326 0600 ...