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Section 25 Flash Memory
Initial
Value
Bit
Bit Name
3
WEINTE
0
2, 1
All 0
Rev. 1.00 Mar. 12, 2008 Page 930 of 1178
REJ09B0403-0100
R/W
Description
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.
R/W
Reserved
The initial value should not be changed.
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