ATmega128A Atmel Corporation, ATmega128A Datasheet - Page 88

• Manufacturer Part Number: ATmega128A
• Manufacturer: Atmel Corporation

Specifications of ATmega128A

• Flash (kbytes): 128 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 53
• Ext Interrupts: 8
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 2
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 4096
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 8
• Input Capture Channels: 2
• Pwm Channels: 7
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

12.4.10
12.4.11
12.4.12
12.4.13
12.4.14
12.4.15
12.4.16
8151H–AVR–02/11
PINC - Port C Input Pins Address
PORTD - Port D Data Register
DDRD - Port D Data Direction Register
PIND - Port D Input Pins Address
PORTE - Port E Data Register
DDRE - Port E Data Direction Register
PINE - Port E Input Pins Address
In ATmega103 compatibility mode, DDRC and PINC Registers are initialized to being Push-Pull
Zero Output. The port pins assumes their initial value, even if the clock is not running. Note that
the DDRC and PINC Registers are available in ATmega103 compatibility mode, and should not
be used for 100% back-ward compatibility.
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
Bit
Read/Write
Initial Value
PORTD7
PORTE7
PINC7
PIND7
PINE7
DDD7
DDE7
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
7
7
0
7
0
7
7
0
7
7
0
PORTD6
PORTE6
PINC6
PIND6
PINE6
DDD6
DDE6
R/W
R/W
R/W
R/W
N/A
N/A
N/A
R
R
R
6
6
0
6
0
6
6
0
6
6
0
PORTD5
PORTE5
PINC5
PIND5
PINE5
DDD5
DDE5
R/W
R/W
R/W
N/A
R/W
N/A
N/A
R
R
R
5
0
5
5
0
5
5
5
0
5
0
PORTD4
PORTE4
PIND4
PINE4
PINC4
DDD4
DDE4
R/W
R/W
R/W
N/A
R/W
N/A
N/A
R
4
0
R
R
4
0
4
4
4
4
0
4
0
PORTD3
PORTE3
PIND3
PINE3
PINC3
DDD3
DDE3
R/W
R/W
R/W
N/A
R/W
N/A
N/A
R
3
0
R
R
3
0
3
3
3
3
0
3
0
PORTD2
PORTE2
PIND2
PINE2
PINC2
DDD2
DDE2
R/W
R/W
R/W
N/A
R/W
N/A
N/A
R
2
0
R
R
2
0
2
2
2
2
0
2
0
PORTD1
PORTE1
PIND1
DDE1
PINE1
ATmega128A
PINC1
DDD1
R/W
R/W
R/W
N/A
N/A
N/A
R/W
R
1
0
R
R
1
0
1
1
1
1
0
1
0
PORTD0
PORTE0
PIND0
DDE0
PINE0
PINC0
DDD0
R/W
R/W
R/W
N/A
N/A
N/A
R/W
R
0
0
R
R
0
0
0
0
0
0
0
0
0
PORTD
DDRE
DDRD
PORTE
PIND
PINF
PINC
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