Datasheet

Section 20 Flash Memory (0.35-μm F-ZTAT Version)
Rev.7.00 Mar. 18, 2009 page 857 of 1136
REJ09B0109-0700
6. Do not perform additional programming. Erase the memory before reprogramming.
In on-board programming, perform only one programming operation on a 128-byte
programming unit block. In programmer mode, too, perform only one programming operation
on a 128-byte programming unit block. Programming should be carried out with the entire
programming unit block erased.
7. Before programming, check that the chip is correctly mounted in the PROM programmer.
Overcurrent damage to the device can result if the index marks on the PROM programmer
socket, socket adapter, and chip are not correctly aligned.
8. Do not touch the socket adapter or chip during programming.
Touching either of these can cause contact faults and write errors.
9. Apply the reset signal after the SWE, bit is cleared during its operation.
The reset signal is applied at least 100 µs after the SWE bit has been cleared.