HD6412373R RENESAS [Renesas Technology Corp], HD6412373R Datasheet - Page 958

• Manufacturer Part Number: HD6412373R
• Description: Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2300 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 21 Flash Memory (0.18-μm F-ZTAT Version)
However, the vector table can be read from the on-chip RAM by the FVACR setting. FVACR is
initialized to H'00 at a power-on reset or in hardware standby mode.
All interrupts including NMI must be prohibited in the programming/erasing processing or during
downloading on-chip program. When the NMI interrupt is necessary, FVACR must be set and the
interrupt exception processing routine must be set in the on-chip RAM space or in the external
space.
Bit
7
6 to 4
3
2
1
0
Legend:
×: Don’t care
Rev.7.00 Mar. 18, 2009 page 890 of 1136
REJ09B0109-0700
Bit
Name
FVCHGE 0
⎯
FVSEL3
FVSEL2
FVSEL1
FVSEL0
Initial
Value
All 0
0
0
0
0
R/W
R/W
R
R/W
R/W
R/W
R/W
Description
Vector Switch Function Valid
Selects whether the function for modifying the space
from which the vector table data is read is valid or
invalid. When FVCHGE = 1, the vector table data can be
read from the on-chip RAM space.
0: Function for modifying the space from which the
1: Function for modifying the space from which the
Reserved
These bits are always read as 0. The write value should
always be 0.
Interrupt Source Select
The vector table of the NMI interrupt processing can be
in the on-chip RAM space by setting this bit.
0000: Vector table data is in area 0
0001: Setting prohibited
001×: Setting prohibited
01××: Setting prohibited
1000: Vector table data is in the on-chip RAM space
1001: Setting prohibited
101×: Setting prohibited
11××: Setting prohibited
vector table data is read is invalid (Initial value)
vector table data is read is valid
(H'00001C to H'00001F)
(H'FFA01C to H'FFA01F)