HD64F3437TF16 Datasheet, PDF (660/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

EBR2—Erase Block Register 2
• H8/3434F, H8/3437F
H'83
Flash memory
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
SB7
SB6
SB5
SB4
SB3
SB2
SB1
SB0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Small Block 7 to 0
0 Corresponding block (SB7 to SB0) is not selected
1 Corresponding block (SB7 to SB0) is selected
• H8/3437SF
Bit
Initial value
Read/Write
7
6
5
4
3
2
1
0
EB7
EB6
EB5
EB4
EB3
EB2
EB1
EB0
0
0
0
0
0
0
0
0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Erase Block 7 to 0
0 Corresponding block (EB7 to EB0) is not selected (initial value)
1 Corresponding block (EB7 to EB0) is selected
631