ATmega64A Atmel Corporation, ATmega64A Datasheet - Page 303

• 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

27.6.5
8160C–AVR–07/09
Programming the EEPROM
Figure 27-2. Addressing the Flash which is Organized in Pages
Note:
Figure 27-3. Programming the Flash Waveforms
Note:
The EEPROM is organized in pages, see
EEPROM, the program data is latched into a page buffer. This allows one page of data to be
programmed simultaneously. The programming algorithm for the EEPROM data memory is as
follows (refer to
Data loading):
RESET +12V
RDY/BSY
1. PCPAGE and PCWORD are listed in
1. “XX” is don’t care. The letters refer to the programming description above.
PAGEL
XTAL1
DATA
PROGRAM MEMORY
XA1
XA0
BS1
BS2
WR
OE
PROGRAM
COUNTER
PAGE
“Programming the Flash” on page 301
$10
A
PAGE ADDRESS
WITHIN THE FLASH
ADDR. LOW
PCMSB
B
DATA LOW
PCPAGE
C
DATA HIGH
D
XX
E
PAGEMSB
Table 27-10 on page
PCWORD
ADDR. LOW
Table 27-9 on page 300
B
WORD ADDRESS
WITHIN A PAGE
DATA LOW
(1)
C
F
INSTRUCTION WORD
DATA HIGH
for details on Command, Address and
D
PAGE
E
XX
(1)
ADDR. HIGH
300. When programming the
G
.
ATmega64A
XX
H
PCWORD[PAGEMSB:0]:
00
01
02
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