D12320VF25V Datasheet, PDF (740/1146 Pages) Renesas Technology Corp – Old Company Name in Catalogs and Other Documents

Section 17 ROM
Bit
:
7
6
5
4
3
2
1
0
0
0
0
0
0
SS
FK
SF
Initial value : —
—
—
—
—
—
—
—
R/W
:—
—
—
—
—
R/W
R/W
R/W
Bits 7 to 3—Reserved: Return 0.
Bit 2—Source Select Error Detect (SS): The on-chip program which can be downloaded can be
specified only one type. When more than two types of the program are selected, the program is not
selected, or the program is selected without mapping, error is occurred.
Bit 2
SS
0
1
Description
Download program can be selected normally
Download error is occurred (Multi-selection or program which is not mapped is
selected)
Bit 1—Flash Key Register Error Detect (FK): Returns the check result whether the value of
FKEY is set to H'A5.
Bit 1
FK
0
1
Description
FKEY setting is normal (FKEY = H'A5)
Setting value of FKEY becomes error (FKEY = value other than H'A5)
Bit 0—Success/Fail (SF): Returns the result whether download is ended normally or not. The
judgement result whether program that is downloaded to the on-chip RAM is read back and then
transferred to the on-chip RAM is returned.
Bit 0
SF
0
1
Description
Downloading on-chip program is ended normally (no error)
Downloading on-chip program is ended abnormally (error occurs)
Rev.7.00 Feb. 14, 2007 page 706 of 1108
REJ09B0089-0700