D12320VF25V Datasheet, PDF (748/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
(4) Erasure Execution
When flash memory is erased, the erase-block number on the user MAT must be passed to the
erasing program which is downloaded. This is set to the FEBS parameter (general register ER0).
One block is specified from the block number 0 to 15.
For details on the erasing processing procedure, see section 17.24.2, User Program Mode.
(a) Flash erase block select parameter (FEBS: general register ER0 of CPU)
This parameter specifies the erase-block number. The several block numbers cannot be specified.
Bit
: 31
30
29
28
27
26
25
24
0
0
0
0
0
0
0
0
Initial value : —
—
—
—
—
—
—
—
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
: 23
22
21
20
19
18
17
16
0
0
0
0
0
0
0
0
Initial value : —
—
—
—
—
—
—
—
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
: 15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
Initial value : —
—
—
—
—
—
—
—
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit
:
7
6
5
4
3
2
1
0
EB7
EB6
EB5
EB4
EB3
EB2
EB1
EB0
Initial value : —
—
—
—
—
—
—
—
R/W
: R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bits 31 to 8—Reserved: Only 0 may be written to these bits.
Bits 7 to 0—Erase Block (EB7 to EB0): Set the erase-block number in the range from 0 to 15. 0
corresponds to the EB0 block and 15 corresponds to the EB15 block. An error occurs when the
number other than 0 to 15 is set.
Rev.7.00 Feb. 14, 2007 page 714 of 1108
REJ09B0089-0700