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3.3.7.2

Interrupt, Wake-up and Error Input Timing

Conditions:

• See

Section 3.3.1, AC Characteristic Measurement Condition.

Note 1.

S: Number of sampling times

fs: The value given by following formula

fDNFCK: frequency of CLK_LSB

PRS: 1, 2, 4, 8, … , 128

Note 2.

Input pulses between min. and max. value result in an undefined signal condition (i.e. pulses might be

filtered out or not). This characteristic is not tested in production.

Note 3.

Edge Detection or Level Detection (CLKA_LPS is operated by CLK_HSIOSC/20)

Note 4.

Level Detection (CLK_LPS is operated by CLK_LSIOSC)

Table 3.55

Interrupt Timing

Parameter

Symbol

Condition

MIN.

TYP.

MAX.

Unit

NMI input high level width

tWNIH

600

μs

NMI input low level width

tWNIL

600

μs

NMI pulse rejection width*2

tWNIRJ

100

600

IRQn input high level width

tWITH

600

μs

IRQn input low level width

tWITL

600

μs

IRQn pulse rejection width*2

tWIRJ

100

600

RLIN3nRX wake-up input high level width

tWRLINH

(S + 1) x 1/fs*1

RLIN3nRX wake-up input low level width

tWRLINL

(S + 1) x 1/fs*1

RLIN3nRX wake-up pulse rejection width*2

tWRLINRJ

(S – 1) x 1/fs*1

(S + 1) x 1/fs*1

CANnRX wake-up input high level width

tWCANH

(S + 1) x 1/fs*1

CANnRX wake-up input low level width

tWCANL

(S + 1) x 1/fs*1

CANnRX wake-up pulse rejection width*2

tWCANRJ

(S – 1) x 1/fs*1

(S + 1) x 1/fs*1

FLXnRXDA wake-up input high level width

tWFLXH

(S + 1) x 1/fs*1

FLXnRXDA wake-up input low level width

tWFLXL

(S + 1) x 1/fs*1

FLXnRXDA wake-up pulse rejection width*2

tWFLXRJ

(S – 1) x 1/fs*1

(S + 1) x 1/fs*1

ERRORINn wake-up input high level width

tWERRH

(S + 1) x 1/fs*1

ERRORINn wake-up input low level width

tWERRL

(S + 1) x 1/fs*1

ERRORINn wake-up pulse rejection width*2

tWERRRJ

(S – 1) x 1/fs*1

(S + 1) x 1/fs*1

fDNFCK

PRS

-----------------

RH850/U2B

Section 3 Electrical Characteristics

R01DS0492EJ0100 Rev.1.00

Mar.31.2025

Page

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