R01UH0823EJ0100 Rev.1.00
Page 279 of 1823
Jul 31, 2019
RX23W Group
15. Interrupt Controller (ICUb)
15.2.10
IRQ Pin Digital Filter Setting Register 0 (IRQFLTC0)
FCLKSELi[1:0] Bits (IRQi Digital Filter Sampling Clock) (i = 0, 1, and 4 to 7)
These bits select the cycle of the digital filter sampling clock for the IRQi pin.
The sampling clock cycle can be selected from among the PCLK (every cycle), PCLK/8 (once every eight cycles),
PCLK/32 (once every 32 cycles), and PCLK/64 (once every 64 cycles).
For details of the digital filter, see
section 15.4.7, Digital Filter
.
Address(es): ICU.IRQFLTC0 0008 7514h
b15
b14
b13
b12
b11
b10
b9
b8
b7
b6
b5
b4
b3
b2
b1
b0
FCLKSEL7[1:0] FCLKSEL6[1:0] FCLKSEL5[1:0] FCLKSEL4[1:0]
—
—
FCLKSEL1[1:0] FCLKSEL0[1:0]
Value after reset:
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
Symbol
Bit Name
Description
R/W
b1, b0
IRQ0 Digital Filter Sampling Clock
0 0: PCLK
0 1: PCLK/8
1 0: PCLK/32
1 1: PCLK/64
R/W
b3, b2
IRQ1 Digital Filter Sampling Clock
R/W
b7 to b4
—
Reserved
These bits are read as 0. The write value should be 0. R/W
b9, b8
IRQ4 Digital Filter Sampling Clock
0 0: PCLK
0 1: PCLK/8
1 0: PCLK/32
1 1: PCLK/64
R/W
b11, b10
IRQ5 Digital Filter Sampling Clock
R/W
b13, b12
IRQ6 Digital Filter Sampling Clock
R/W
b15, b14
IRQ7 Digital Filter Sampling Clock
R/W