Rainbow-electronics ATmega8HVD User Manual download pdf (Page 39)

39

8052B–AVR–09/08

ATmega4HVD/8HVD

Figure 10-1. Reset Logic

MCU Status

Register (MCUSR)

Reset Circuit

Delay Counters

CK

TIMEOUT

WDRF

EXTRF

PORF

DATA BUS

Clock

Generator

SPIKE

FILTER

Pull-up Resistor

SlowRC

Oscillator

SUT[2:0]

Black-out

Detection/

Power-on

Reset

Circuit/

Charger

Detect

Watchdog

Timer

RESET

dW

V

FET

BATT

POR

V

CC

COUNTER RESET

V

CC

debugWIRE

OCDRF

BLOD

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