Datasheet

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 903 of 1136
REJ09B0109-0700
⎯ Only perform programming finished processing once per block. Even if multiple 128-byte
programming operations have been performed to the same block, programming finished
processing should only be carried out once. (Due not perform programming finished
processing multiple times.) If it is necessary to reprogram blocks within a previously
programmed area on which programming finished processing has been performed, first
erase the blocks in question and then reprogram them.
⎯ Programming finished processing should be performed on all blocks containing areas that
have been programmed after initialization processing. For example, if programming
finished processing is to be carried out once after programming blocks EB1 to EB3,
programming finished processing should be performed individually on EB1, EB2, and
EB3.
⎯ Programming finished processing should be performed immediately after programming of
the necessary data has completed. Caution is necessary because if an operation such as
initialization processing, internal program downloading, rewriting an area of RAM that is a
download destination, or MAT switching is performed before programming finished
processing, programming will not take place correctly.
:
EB9
EB10
EB11
EB12
:
Before reprogramming erased blocks containing a programming
finished area (EB10 and EB11), the corresponding erased
blocks (EB10 and EB11) should be erased.
Programming finished area
16. Determine the FPFR (general-purpose register R0L) value returned by the programming
program.
17. After programming finishes, clear FKEY and specify software protection.
If this LSI is restarted by a power-on reset immediately after user MAT programming has
finished, secure a reset period (period of RES = 0) that is at least as long as normal 100 μs.