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ATMEGA644 Datasheet(PDF) 83 Page - ATMEL Corporation

Part # ATMEGA644
Description  8-bit Microcontroller with 64K Bytes In- System Programmable Flash
PDF  374 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA644 Datasheet(HTML) 83 Page - ATMEL Corporation

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83
2593L–AVR–02/07
ATmega644
12.3.5
Alternate Functions of Port D
The Port D pins with alternate functions are shown in Table 12-12.
Table 12-11. Overriding Signals for Alternate Functions in PC3:PC0
Signal
Name
PC3/TMS/
PCINT19
PC2/TCK/
PCINT18
PC1/SDA/
PCINT17
PC0/SCL/
PCINT16
PUOE
JTAGEN
JTAGEN
TWEN
TWEN
PUOV
1
1
PORTC1 • PUD
PORTC0 • PUD
DDOE
JTAGENJTAGENTWEN
TWEN
DDOV
0
0
0
0
PVOE
0
0
TWEN
TWEN
PVOV
0
0
SDA OUT
SCL OUT
DIEOE
JTAGEN
JTAGEN
PCINT17 • PCIE2
PCINT16 • PCIE2
DIEOV
0
111
DI
PCINT19 INPUT
PCINT18 INPUT
PCINT17 INPUT
PCINT16 INPUT
AIO
TMS INPUT
TCK INPUT
SDA INPUT
SCL INPUT
Table 12-12. Port D Pins Alternate Functions
Port Pin
Alternate Function
PD7
OC2A (Timer/Counter2 Output Compare Match A Output)
PCINT31 (Pin Change Interrupt 31)
PD6
ICP1 (Timer/Counter1 Input Capture Trigger)
OC2B (Timer/Counter2 Output Compare Match B Output)
PCINT30 (Pin Change Interrupt 30)
PD5
OC1A (Timer/Counter1 Output Compare Match A Output)
PCINT29 (Pin Change Interrupt 29)
PD4
OC1B (Timer/Counter1 Output Compare Match B Output)
PCINT28 (Pin Change Interrupt 28)
PD3
INT1 (External Interrupt1 Input)
PCINT27 (Pin Change Interrupt 27)
PD2
INT0 (External Interrupt0 Input)
PCINT26 (Pin Change Interrupt 26)
PD1
TXD0 (USART0 Transmit Pin)
PCINT25 (Pin Change Interrupt 25)
PD0
RXD0 (USART0 Receive Pin)
PCINT24 (Pin Change Interrupt 24)



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