Datasheet

Section 19 Flash Memory (F-ZTAT Version)
Rev. 3.00 Mar 17, 2006 page 790 of 926
REJ09B0283-0300
return when a program that is to be initiated in user program mode was accidentally erased and
could not be executed in user program mode.
Notes: 1. In boot mode, a part of the on-chip RAM area (H'FF8000 to H'FF87FF) is used by the
boot program. Addresses H'FF8800 to H'FFBFFF is the area to which the
programming control program is transferred from the host. The boot program area
cannot be used until the execution state in boot mode switches to the programming
control program.
2. Boot mode can be cleared by a reset. Release the reset by setting the MD pins, after
waiting at least 20 states since driving the reset pin low. Boot mode is also cleared
when the WDT overflow reset occurs.
3. Do not change the MD pin input levels in boot mode.
4. All interrupts are disabled during programming or erasing of the flash memory.