ATMEGA162-16MI Atmel, ATMEGA162-16MI Datasheet - Page 55

• Manufacturer Part Number: ATMEGA162-16MI
• Description: IC MCU AVR 16K 5V 16MHZ 44-QFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA162-16MI

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 35
• Program Memory Size: 16KB (8K x 16)
• Program Memory Type: FLASH
• Eeprom Size: 512 x 8
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-VQFN Exposed Pad
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Data Converters: -

2513K–AVR–07/09
The following code example shows one assembly and one C function for turning off the WDT.
The example assumes that interrupts are controlled (e.g., by disabling interrupts globally) so that
no interrupts will occur during execution of these functions.
Assembly Code Example
C Code Example
WDT_off:
void WDT_off(void)
{
}
; Reset WDT
WDR
; Write logical one to W?CE and WDE
in
ori
out
; Turn off WDT
ldi
out
ret
/* Reset WDT*/
_WDR()
/* Write logical on? to WDCE and WDE */
WDTCR |= (1<<WDCE) | (1<?WDE);
/* Turn off WDT */
WDTCR = 0x00;
r16, WDTCR
r16, (1<<WDCE)|(1<<WDE)
WDTCR, r16
r16, (0<<WDE)
WDTCR, r16
ATmega162/V
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