
R01UH0336EJ0102 Rev.1.02
Page 171 of 1538
Jul 17, 2014
V850E2/PG4-L
Section 4 Interrupt Functions
4.3.10
INTCFGB
–
FE level Interrupt Switch Register
This register specifies the destination for output from an interrupt source that is
switchable between FE-level and EI-level operation.
Once a value has been written to this register, the value is locked into the
register until a reset.
Access
This register is readable and writable in 1- and 8-bit units. Do not write 1 to any
bit for which no function is indicated.
Bits 6 to 0 are always returned as 0 when this register is read.
Address
FF83 A000
H
Initial value
00
H
A reset from any source will initialize the bits.
Procedure for settings
The procedure for switching an FE level interrupt to an EI level interrupt is
given below.
1. Release from reset.
2. Disable output of interrupt signals from the safety guardian (INTISG
signals); output is disabled with the initial value.
3. Select EI-level operation by writing to this register (INTCFGB).
4. Enable operation of WDTA0, CLMA1 and CLMA2, and output of interrupt
signals from the safety guardian.
Caution
When changing the setting of this register, only do so when the state is such
that interrupts from none of the following sources will be generated (i.e. before
their operation is enabled).
• INTISG
• INTWDTA0NMI
• INTCLMA1, INTCLMA2
7
6
5
4
3
2
1
0
INTCFGB INTCFGSL0
0
0
0
0
0
0
0
R/W
R
R
R
R
R
R
R
Bit Position
Bit Name
Function
7
INTCFGSL0
0: The INTCME, INTWDTA0NMI, INTCLMA1 and INTCLMA2 interrupts
generate an FENMI. The INTISG interrupt generates a FEINT.
1: The INTCME interrupt is output as the EIINT0 interrupt,
the INTISG interrupt is output as the EIINT1 interrupt,
the INTWDTA0NMI interrupt is output as the EIINT2 interrupt,
the INTCLMA1 interrupt is output as the EIINT5 interrupt, and
the INTCLMA2 interrupt is output as the EIINT6 interrupt.