R7KA8M2AFECAC datasheet(130/295 Pages) RENESAS

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Oscillator

IRQ

Internal reset

(low is valid)

Reset exception handling start

Deep Software Standby mode

Deep Software Standby

reset

(low is valid)

tDSBY

tDSBYWT

Figure 2.35

Deep Software Standby mode cancellation timing

2.3.5

NMI and IRQ Noise Filter

Table 2.55

NMI and IRQ noise filter

Parameter

Symbol

Min

Typ

Max

Unit

Test conditions

NMI pulse

width

tNMIW

200

—

NMI digital filter

disabled

tPcyc × 2 ≤ 200 ns

tPcyc × 2*1

—

tPcyc × 2 > 200 ns

200

—

NMI digital filter

enabled

tNMICK × 3 ≤ 200 ns

tNMICK × 3.5*2

—

tNMICK × 3 > 200 ns

IRQ pulse

width

tIRQW

200

—

IRQ digital filter

disabled

tPcyc × 2 ≤ 200 ns

tPcyc × 2*1

—

tPcyc × 2 > 200 ns

200

—

IRQ digital filter

enabled

tIRQCK × 3 ≤ 200 ns

tIRQCK × 3.5*3

—

tIRQCK × 3 > 200 ns

Note:

200 ns minimum in Software Standby mode.

Note:

If the system clock source is switched, add 4 clock cycles of the switched source.

Note 1. tPcyc indicates the PCLKB cycle.

Note 2. tNMICK indicates the cycle of the NMI digital filter sampling clock.

Note 3. tIRQCK indicates the cycle of the IRQi digital filter sampling clock.

tNMIW

NMI

Figure 2.36

NMI interrupt input timing

RA8M2 Datasheet

2. Electrical Characteristics

R01DS0438EJ0130 Rev.1.30

Feb 27, 2026

Page 130 of 295

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