ATmega64A Atmel Corporation, ATmega64A Datasheet - Page 292

• 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

26.8.13
8160C–AVR–07/09
ATmega64A Boot Loader Parameters
In
ming are given.
Table 26-6.
Note:
Table 26-7.
Note:
BOOTSZ1
Section
Read-While-Write (RWW)
No Read-While-Write (NRWW)
Table 26-6
Do_spm:
Wait_spm:
Wait_ee:
1
1
0
0
; check for previous SPM complete
lds
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, EEWE
rjmp Wait_ee
; SPM timed sequence
sts
spm
; restore SREG (to enable interrupts if originally enabled)
out
ret
1. The different BOOTSZ Fuse configurations are shown in
1. For details about these two section, see
282
temp1, SPMCSR
temp2, SREG
SPMCSR, spmcrval
SREG, temp2
BOOTSZ0
through
Boot Size Configuration
Read-While-Write Limit
and
1
0
1
0
“RWW – Read-While-Write Section” on page 282
Table
Boot
Size
512
words
1024
words
2048
words
4096
words
26-8, the parameters used in the description of the Self-program-
Pages
16
32
()
4
8
(1)
Appli-
cation
Flash
Section
0x0000 -
0x7DFF
0x0000 -
0x7BFF
0x0000 -
0x77FF
0x0000 -
0x6FFF
“NRWW – No Read-While-Write Section” on page
Boot
Loader
Flash
Section
0x7E00 -
0x7FFF
0x7C00 -
0x7FFF
0x7800 -
0x7FFF
0x7000 -
0x7FFF
Pages
224
32
Figure 26-2
End
Applic-
ation
Section
0x7DFF
0x7BFF
0x77FF
0x6FFF
Address
0x0000 - 0x6FFF
0x7000 - 0x7FFF
ATmega64A
Boot Reset
Address
(Start Boot
Loader
Section)
0x7E00
0x7C00
0x7800
0x7000
292