HD6433044 Hitachi Semiconductor, HD6433044 Datasheet - Page 586

• Manufacturer Part Number: HD6433044
• Description: (HD64 Series) Hitachi Single-Chip Microcomputer
• Manufacturer: Hitachi Semiconductor

Bit
Initial value
R/W
18.5.2 Erase Block Register 1
Erase block register 1 (EBR1) is an eight-bit register that designates large flash-memory blocks
for programming and erasure. EBR1 is initialized to H'00 by a reset, in the standby modes, when
12 V is applied to V
in EBR1 is set to 1, the corresponding block is selected and can be programmed and erased.
Figure 18-8 shows a block map.
Note: * The initial value is H'00 in modes 5, 6, and 7 (on-chip flash memory enabled). In modes
Bits 7 to 0—Large Block 7 to 0 (LB7 to LB0): These bits select large blocks (LB7 to LB0) to be
programmed and erased.
Bits 7 to 0
LB7 to LB0
0
1
1, 2, 3, and 4 (on-chip flash memory disabled), this register cannot be modified and is
always read as H'FF.
*
R/W *
LB7
7
0
Description
Block LB7 to LB0 is not selected
Block LB7 to LB0 is selected
PP
while the V
R/W
LB6
6
0
*
R/W
LB5
PP
5
0
E bit is 0, and when 12 V is not applied to V
*
R/W
LB4
4
0
577
*
R/W
LB3
3
0
*
R/W
LB2
2
0
*
R/W
LB1
1
0
*
PP
R/W
LB0
0
0
. When a bit
(Initial value)
*