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ATMEGA16-16MC Datasheet(PDF) 62 Page - ATMEL Corporation

Part No. ATMEGA16-16MC
Description  8-bit AVR Microcontroller with 16K Bytes In-System Programmable Flash
Download  315 Pages
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Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
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ATMEGA16-16MC Datasheet(HTML) 62 Page - ATMEL Corporation

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62
ATmega16(L)
2466E–AVR–10/02
Register Description for
I/O Ports
Port A Data Register – PORTA
Port A Data Direction Register
– DDRA
Port A Input Pins Address –
PINA
Port B Data Register – PORTB
Port B Data Direction Register
– DDRB
Table 33. Overriding Signals for Alternate Functions in PD3..PD0
Signal Name
PD3/INT1
PD2/INT0
PD1/TXD
PD0/RXD
PUOE
0
0
TXEN
RXEN
PUOV
0
0
0
PORTD0 • PUD
DDOE
0
0
TXEN
RXEN
DDOV
0
0
1
0
PVOE
0
0
TXEN
0
PVOV
0
0
TXD
0
DIEOE
INT1 ENABLE
INT0 ENABLE
0
0
DIEOV
110
0
DI
INT1 INPUT
INT0 INPUT
RXD
AIO
–––
Bit
7
65
43
21
0
PORTA7
PORTA6
PORTA5
PORTA4
PORTA3
PORTA2
PORTA1
PORTA0
PORTA
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
7
65
43
21
0
DDA7
DDA6
DDA5
DDA4
DDA3
DDA2
DDA1
DDA0
DDRA
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
7
65
43
21
0
PINA7
PINA6
PINA5
PINA4
PINA3
PINA2
PINA1
PINA0
PINA
Read/Write
RR
RR
RR
RR
Initial Value
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Bit
7
65
43
21
0
PORTB7
PORTB6
PORTB5
PORTB4
PORTB3
PORTB2
PORTB1
PORTB0
PORTB
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0
Bit
7
65
43
21
0
DDB7
DDB6
DDB5
DDB4
DDB3
DDB2
DDB1
DDB0
DDRB
Read/Write
R/W
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Initial Value
0
0
0
0
0
0
0
0


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