R01UH0822EJ0100 Rev.1.00
Page 201 of 1041
Jul 31, 2019
RX13T Group
14. Interrupt Controller (ICUb)
14.2.2
Interrupt Request Enable Register m (IERm) (m = 02h to 1Fh)
Note:
Write 0 to the bit that corresponds to the vector number for reservation. These bits are read as 0.
IENj Bit (Interrupt Request Enable j) (j = 0 to 7)
When an IENj bit is 1, the corresponding interrupt request will be output to the destination selected for the request.
When an IENj bit is 0, the corresponding interrupt request will not be output to the destination selected for the request.
The setting of an IENj bit does not affect the IRn.IR flag (n = interrupt vector number). Even if the corresponding IENj
bit is 0, the IR flag value changes according to the descriptions in
section 14.2.1, Interrupt Request Register n (IRn)
.
The IERm.IENj bit is set for each request source (vector number).
For the correspondence between interrupt sources and IERm.IENj bits, see
Table 14.3, Interrupt Vector Table
For the procedure for setting IERm.IENj bits during the selection of destinations for interrupt requests, refer to
14.4.3, Selecting Interrupt Request Destinations
.
Address(es): ICU.IER02 0008 7202h to ICU.IER1F 0008 721Fh
b7
b6
b5
b4
b3
b2
b1
b0
IEN7
IEN6
IEN5
IEN4
IEN3
IEN2
IEN1
IEN0
Value after reset:
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b0
Interrupt Request Enable 0
0: Interrupt request is disabled
1: Interrupt request is enabled
R/W
b1
Interrupt Request Enable 1
R/W
b2
Interrupt Request Enable 2
R/W
b3
Interrupt Request Enable 3
R/W
b4
Interrupt Request Enable 4
R/W
b5
Interrupt Request Enable 5
R/W
b6
Interrupt Request Enable 6
R/W
b7
Interrupt Request Enable 7
R/W