H8S2258 Datasheet, PDF (814/1071 Pages) Renesas Technology Corp – 16-Bit Single-Chip Microcomputer H8S Family/H8S/2200 Series

Section 20 Flash Memory (F-ZTAT Version)
20.5.4 Erase Block Register 2 (EBR2)
EBR2 specifies the flash memory erase area block. EBR1 is initialized to H'00 when the SWE1 bit
in FLMCR1 is 0. Do not set more than one bit at a time, as this will cause all the bits in EBR1 and
EBR2 to be automatically cleared to 0.
• 384-kbyte Flash Memory
Bit Bit Name Initial Value R/W
7, 6 —
All 0
R/W
5
EB13
0
R/W
4
EB12
0
R/W
3
EB11
0
R/W
2
EB10
0
R/W
1
EB9
0
R/W
0
EB8
0
R/W
Description
Reserved
These bits are always read as 0. The write value should
always be 0.
When this bit is set to 1, 64 kbytes of EB13 (H'050000 to
H'05FFFF) will be erased.
When this bit is 1, 64 kbytes of EB12 (H'040000 to
H'04FFFF) will be erased.
When this bit is set to 1, 64 kbytes of EB11 (H'030000 to
H'03FFFF) will be erased.
When this bit is set to 1, 64 kbytes of EB10 (H'020000 to
H'02FFFF) will be erased.
When this bit is set to 1, 64 kbytes of EB9
(H'010000 to H'01FFFF) will be erased.
When this bit is set to 1, 32 kbytes of EB8
(H'008000 to H'00FFFF) will be erased.
• 256-kbyte Flash Memory
Bit Bit Name Initial Value R/W Description
7 to 4 —
All 0
R/(W) Reserved
Initial values should not be changed.
3
EB11
0
R/W When this bit is set to 1, 64 kbytes of EB11 (H'030000 to
H'03FFFF) will be erased.
2
EB10
0
R/W When this bit is set to 1, 64 kbytes of EB10 (H'020000 to
H'02FFFF) will be erased.
1
EB9
0
R/W When this bit is set to 1, 64 kbytes of EB9
(H'010000 to H'01FFFF) will be erased.
0
EB8
0
R/W When this bit is set to 1, 32 kbytes of EB8
(H'008000 to H'00FFFF) will be erased.
Rev. 5.00 Aug 08, 2006 page 728 of 982
REJ09B0054-0500