ATA6612C View Datasheet(PDF) - Atmel Corporation

Part Name

Description

MFG CO.

ATA6612C

8K/16K Flash Microcontroller with LIN Transceiver, 5V Regulator and Watchdog

Atmel Corporation 

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Figure 5-15. Reset Logic

DATA BUS

MCU Status

Register (MCUSR)

VCC

Power-on Reset

Circuit

BODLEVEL [2..0]

Brown-out

Reset Circuit

Pull-up Resistor

RESET

SPIKE

FILTER

RSTDISBL

Reset Circuit

Watchdog

Timer

Watchdog

Oscillator

Q

S

R

Clock

CK

Generator

Delay Counters

TIMEOUT

CKSEL[3:0]

SUT[1:0]

5.8.3

Power-on Reset

A power-on reset (POR) pulse is generated by an on-chip detection circuit. The detection level is defined in

Table 5-20 on page 62. The POR is activated whenever VCC is below the detection level. The POR circuit can be used to

trigger the start-up reset, as well as to detect a failure in supply voltage.

A power-on reset (POR) circuit ensures that the device is reset from power-on. Reaching the power-on reset threshold

voltage invokes the delay counter, which determines how long the device is kept in RESET after VCC rise. The RESET signal

is activated again, without any delay, when VCC decreases below the detection level.

ATA6612C/ATA6613C [DATASHEET]

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9111L–AUTO–11/14

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