ATA6613-EK Atmel, ATA6613-EK Datasheet - Page 74
ATA6613-EK
Manufacturer Part Number
ATA6613-EK
Description
BOARD DEMO LIN-MCM FOR ATA6613
Manufacturer
Atmel
Specifications of ATA6613-EK
Main Purpose
Interface, LIN + MCU
Embedded
Yes, MCU, 8-Bit
Utilized Ic / Part
ATA6613
Primary Attributes
LIN-SBC (System-Basis-Chip) Transceiver, LIN 2.0, Voltage Regulator, Window Watchdog
Secondary Attributes
16 kB Flash, 4 Power Modes: Pre-Normal, Normal, Sleep, Silent, 48-QFN
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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6.8.9
74
Atmel ATA6612/ATA6613
Watchdog Timer
Table 6-23.
Note:
Atmel
Figure 6-21. Watchdog Timer
The Watchdog Timer (WDT) is a timer counting cycles of a separate on-chip 128kHz oscilla-
tor. The WDT gives an interrupt or a system reset when the counter reaches a given time-out
value. In normal operation mode, it is required that the system uses the WDR - Watchdog
Timer Reset - instruction to restart the counter before the time-out value is reached. If the sys-
tem doesn't restart the counter, an interrupt or system reset will be issued.
• Clocked from separate On-chip Oscillator
• 3 Operating modes
• Selectable Time-out period from 16ms to 8s
• Possible Hardware fuse Watchdog always on (WDTON) for fail-safe mode
Symbol
V
t
I
BG
BG
BG
– Interrupt
– System Reset
– Interrupt and System Reset
®
ATA6612/ATA6613 has an Enhanced Watchdog Timer (WDT). The main features are:
1. Values are guidelines only. Actual values are TBD.
WATCHDOG
RESET
Parameter
Bandgap reference voltage
Bandgap reference start-up time
Bandgap reference current consumption
OSCILLATOR
Internal Voltage Reference Characteristics
128kHz
WDIF
WDIE
WDE
PRESCALER
WATCHOG
Condition
TBD
TBD
TBD
(1)
Min
1.0
WDP0
WDP1
WDP2
WDP3
MCU RESET
INTERRUPT
Typ
1.1
40
10
9111H–AUTO–01/11
Max
TBD
1.2
70
Units
µA
µs
V
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