Datasheet

Section 19 Flash Memory
Rev. 3.00 Sep. 28, 2009 Page 521 of 710
REJ09B0384-0300
Bit Bit Name
Initial
Value
R/W Description
3 WEINTE 0 R/W Program/Erase Enable
Modifies the space for the interrupt vector table, when
interrupt vector data is not read successfully during
programming/erasing flash memory or switching between
a user MAT and a user boot MAT. When this bit is set to
1, interrupt vector data is read from address spaces
H'FFE080 to H'FFE0FF (on-chip RAM space), instead of
from address spaces H'000000 to H'00007F (up to vector
number 31). Therefore, make sure to set the vector table
in the on-chip RAM space before setting this bit to 1.
The interrupt exception handling on and after vector
number 32 should not be used because the correct
vector is not read, resulting in the CPU runaway.
0: The space for the interrupt vector table is not modified.
When interrupt vector data is not read successfully,
the operation for the interrupt exception handling
cannot be guaranteed. An occurrence of any interrupts
should be masked.
1: The space for the interrupt vector table is modified.
Even when interrupt vector data is not read
successfully, the interrupt exception handling up to
vector number 31 is enabled.
2, 1 ⎯ All 0 R/W Reserved
The initial value should not be changed.