3069RF-ZTAT Datasheet, PDF (630/1003 Pages) Renesas Technology Corp – RENESAS 16-BIT SINGLE-CHIP MICROCOMPUTER

Bit :
7
6
5
4
3
2
1
0
FVCHGE —
—
— FVSEL3 FVSEL2 FVSEL1 FVSEL0
Initial value :
0
0
0
0
0
0
0
0
R/W :
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Bit 7—Vector Switch Function Valid (FVCHGE): Selects whether the function for modifying
the space which reads the vector table data is valid or invalid. When FVCHGE = 1, the vector
table data can be read from the internal I/O registers (FVADRR to FVADRL).
Bit 7
FVCHGE
0
1
Description
Function for modifying the space which reads the vector table data is invalid
(Initial value)
Function for modifying the space which reads the vector table data is valid
Bits 6 to 4—Reserved: These bits are always read as 0. The write value should always be 0.
Bits 3 to 0—Interrupt Source Select (FVSEL3 to FVSEL0): The vector table of the NMI
interrupt processing can be in the internal I/O registers (FVADRR to FVADRL) by setting this bit.
Interrupt Source Bits
Bit 3
FVSEL3
0
Bit 2
FVSEL2
0
Bit 1
FVSEL1
0
0
0
0
0
0
1
0
1
—
1
0
0
1
0
0
1
0
1
1
1
—
Bit 0
FVSEL0
0
1
—
—
0
1
—
—
Function
Vector table data is in area 0 (Initial value)
(H'00001C to H'00004F)
Setting prohibited
Vector table data is in internal I/O register
(FVADRR to FVADRL)
Setting prohibited
Rev. 5.0, 09/04, page 608 of 978