ATMEGA165-16AI Atmel, ATMEGA165-16AI Datasheet - Page 54
ATMEGA165-16AI
Manufacturer Part Number
ATMEGA165-16AI
Description
IC AVR MCU 16K 16MHZ 64TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA165-16AI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USI
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
54
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
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
64-TQFP, 64-VQFP
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Pin Change Mask Register 1 –
PCMSK1
Pin Change Mask Register 0 –
PCMSK0
2573G–AVR–07/09
• Bit 0 – INTF0: External Interrupt Flag 0
When an edge or logic change on the INT0 pin triggers an interrupt request, INTF0
becomes set (one). If the I-bit in SREG and the INT0 bit in EIMSK are set (one), the
MCU will jump to the corresponding Interrupt Vector. The flag is cleared when the inter-
rupt routine is executed. Alternatively, the flag can be cleared by writing a logical one to
it. This flag is always cleared when INT0 is configured as a level interrupt.
• Bit 7..0 – PCINT15..8: Pin Change Enable Mask 15..8
Each PCINT15..8-bit selects whether pin change interrupt is enabled on the correspond-
ing I/O pin. If PCINT15..8 is set and the PCIE1 bit in EIMSK is set, pin change interrupt
is enabled on the corresponding I/O pin. If PCINT15..8 is cleared, pin change interrupt
on the corresponding I/O pin is disabled.
• Bit 7..0 – PCINT7..0: Pin Change Enable Mask 7..0
Each PCINT7..0 bit selects whether pin change interrupt is enabled on the correspond-
ing I/O pin. If PCINT7..0 is set and the PCIE0 bit in EIMSK is set, pin change interrupt is
enabled on the corresponding I/O pin. If PCINT7..0 is cleared, pin change interrupt on
the corresponding I/O pin is disabled.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PCINT15
7
PCINT7
R/W
0
R/W
7
0
6
PCINT6
R/W
0
PCINT14
R/W
6
0
PCINT5
5
R/W
0
PCINT13
R/W
5
0
4
PCINT4
R/W
0
PCINT12
R/W
4
0
3
PCINT3
R/W
0
PCINT11
R/W
3
0
2
PCINT2
R/W
0
PCINT10
R/W
2
0
ATmega165/V
1
PCINT1
R/W
0
PCINT9
R/W
1
0
0
PCINT0
R/W
0
PCINT8
R/W
0
0
PCMSK0
PCMSK1
54
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