ATmega128A Atmel Corporation, ATmega128A Datasheet - Page 299

• 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

26.6.5
8151H–AVR–02/11
Programming the EEPROM
Figure 26-2. Addressing the Flash which is Organized in Pages
Note:
Figure 26-3. 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
PROGRAM MEMORY
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
XA1
XA0
BS1
BS2
WR
OE
PROGRAM
COUNTER
PAGE
PAGE ADDRESS
WITHIN THE FLASH
“Programming the Flash” on page 297
0x10
A
PCMSB
ADDR. LOW
B
PCPAGE
DATA LOW
C
DATA HIGH
D
PAGEMSB
PCWORD
E
XX
WORD ADDRESS
WITHIN A PAGE
Table 26-11 on page
ADDR. LOW DATA LOW
Table 26-11 on page
B
INSTRUCTION WORD
C
F
DATA HIGH
PAGE
for details on Command, Address and
D
XX
E
296.
ADDR. HIGH
296. When programming the
G
ATmega128A
PCWORD[PAGEMSB:0]:
00
01
02
PAGEEND
H
XX
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