ATmega1280 Atmel Corporation, ATmega1280 Datasheet - Page 328

• Manufacturer Part Number: ATmega1280
• Manufacturer: Atmel Corporation

Specifications of ATmega1280

• Flash (kbytes): 128 Kbytes
• Pin Count: 100
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 86
• Ext Interrupts: 32
• Usb Speed: No
• Usb Interface: No
• Spi: 5
• Twi (i2c): 1
• Uart: 4
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 16
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 8
• 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: 1.8 to 5.5
• Operating Voltage (vcc): 1.8 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 6
• Output Compare Channels: 16
• Input Capture Channels: 4
• Pwm Channels: 15
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

29.6.14
2549N–AVR–05/11
ATmega640 Boot Loader Parameters
In
Self-Programming are given.
Table 29-7.
Note:
Table 29-7
Return:
Do_spm:
Wait_spm:
Wait_ee:
1
1
0
0
; return to RWW section
; verify that RWW section is safe to read
in
sbrs temp1, RWWSB
ret
; re-enable the RWW section
ldi
call Do_spm
rjmp Return
; check for previous SPM complete
in
sbrc temp1, SPMEN
rjmp Wait_spm
; input: spmcrval determines SPM action
; disable interrupts if enabled, store status
in
cli
; check that no EEPROM write access is present
sbic EECR, EEPE
rjmp Wait_ee
; SPM timed sequence
out
spm
; restore SREG (to enable interrupts if originally enabled)
out
ret
1. The different BOOTSZ Fuse configurations are shown in
temp1, SPMCSR
spmcrval, (1<<RWWSRE) | (1<<SPMEN)
temp1, SPMCSR
temp2, SREG
SPMCSR, spmcrval
SREG, temp2
1
0
1
0
through
Boot Size Configuration, ATmega640
words
words
words
words
1024
2048
4096
512
Table 29-9 on page
16
32
ATmega640/1280/1281/2560/2561
; If RWWSB is set, the RWW section is not ready yet
4
8
0x0000 -
0x7DFF
0x0000 -
0x7BFF
0x0000 -
0x77FF
0x0000 -
0x6FFF
329, the parameters used in the description of the
(1)
0x7E00 -
0x7FFF
0x7C00 -
0x7FFF
0x7800 -
0x7FFF
0x7000 -
0x7FFF
Figure 29-2 on page
0x7DFF
0x7BFF
0x77FF
0x6FFF
320.
0x7E00
0x7C00
0x7800
0x7000
328