ATmega64A Atmel Corporation, ATmega64A Datasheet - Page 63

• Manufacturer Part Number: ATmega64A
• Manufacturer: Atmel Corporation

Specifications of ATmega64A

• Flash (kbytes): 64 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): 2048
• 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

11.2.1
8160C–AVR–07/09
Moving Interrupts Between Application and Boot Space
When the BOOTRST Fuse is programmed and the Boot section size set to 8K bytes, the most
typical and general program setup for the Reset and Interrupt Vector Addresses is:
When the BOOTRST Fuse is programmed, the Boot section size set to 8K bytes and the IVSEL
bit in the MCUCR Register is set before any interrupts are enabled, the most typical and general
program setup for the Reset and Interrupt Vector Addresses is:
The General Interrupt Control Register controls the placement of the Interrupt Vector table.
Address Labels Code
.org 0x0002
0x0002
0x0004
:.
0x0044
;
.org 0x7000
0x7000 RESET: ldi
0x7001
0x7002
0x7003
0x7004
0x7005
Address Labels Code
;
.org 0x7000
0x7000
0x7002
0x7004
:.
0x7044
0x7046 RESET: ldi
0x7047
0x7048
0x7049
0x704A
0x704B
jmp
jmp
:.
jmp
out
ldi
out
sei
<instr>
jmp
jmp
jmp
:.
jmp
out
ldi
out
sei
<instr>
EXT_INT0 ; IRQ0 Handler
EXT_INT1 ; IRQ1 Handler
:.
SPM_RDY
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
RESET
EXT_INT0 ; IRQ0 Handler
EXT_INT1 ; IRQ1 Handler
:.
SPM_RDY ; Store Program Memory Ready Handler
r16,high(RAMEND); Main program start
SPH,r16
r16,low(RAMEND)
SPL,r16
xxx
xxx
;
; Store Program Memory Ready Handler
; Set Stack Pointer to top of RAM
; Enable interrupts
; Reset handler
;
; Set Stack Pointer to top of RAM
; Enable interrupts
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