Datasheet

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 881 of 1136
REJ09B0109-0700
Bit
Bit
Name
Initial
Value
R/W Description
7 to 3 ⎯ ⎯ ⎯ Unused
Return 0
2 SS ⎯ R/W Source Select Error Detect
Only one type for the on-chip program which can be
downloaded can be specified. 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.
0: Download program can be selected normally
1: Download error is occurred (multi-selection or program
which is not mapped is selected)
1 FK ⎯ R/W Flash Key Register Error Detect (FK)
Returns the check result whether the value of FKEY is
set to H'A5.
0: KEY setting is normal (FKEY = H'A5)
1: Setting value of FKEY becomes error (FKEY = value
other than H'A5)
0 SF ⎯ R/W Success/Fail
Returns the result whether download is ended normally
or not. The determination result whether program that is
downloaded to the on-chip RAM is read back and then
transferred to the on-chip RAM is returned.
0: Downloading on-chip program is ended normally (no
error)
1: Downloading on-chip program is ended abnormally
(error occurs)