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(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 25.4.3, User Program Mode.
(a)
Flash erase block select parameter (FEBS: general register ER0 of CPU)
This parameter specifies the erase-block number.
Initial
Bit
Bit Name
Value
31 to 16
15
EB15
14
EB14
13
EB13
12
EB12
11
EB11
10
EB10
9
EB9
8
EB8
7
EB7
6
EB6
5
EB5
4
EB4
3
EB3
2
EB2
1
EB1
0
EB0
R/W
Description
Unused
These bits should be cleared to H'0.
R/W
Erase Block
R/W
Set the erase-block number in the range from 0 to 15. 0
corresponds to the EB0 block, and 15 corresponds to
R/W
the EB15 block.
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Section 25 Flash Memory
Rev. 1.00 Mar. 12, 2008 Page 945 of 1178
REJ09B0403-0100
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