ATmega8535 Atmel Corporation, ATmega8535 Datasheet - Page 244

• Manufacturer Part Number: ATmega8535
• Manufacturer: Atmel Corporation

Specifications of ATmega8535

• Flash (kbytes): 8 Kbytes
• Pin Count: 44
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 32
• Ext Interrupts: 3
• Usb Speed: No
• Usb Interface: No
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• 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): 0.5
• Eeprom (bytes): 512
• 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: 3
• Output Compare Channels: 4
• Input Capture Channels: 1
• Pwm Channels: 4
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

244
ATmega8535(L)
3. Wait until RDY/BSY goes high. (See Figure 117 for signal waveforms)
I. Repeat B through H until the entire Flash is programmed or until all data has been
programmed.
J. End Page Programming
1. 1. Set XA1, XA0 to “10”. This enables command loading.
2. Set DATA to “0000 0000”. This is the command for No Operation.
3. Give XTAL1 a positive pulse. This loads the command, and the internal write sig-
Figure 116. Addressing the Flash which is Organized in Pages
Note:
Figure 117. Programming the Flash Waveforms
Note:
RESET +12V
RDY/BSY
nals are reset.
PAGEL
XTAL1
DATA
XA1
XA0
BS1
BS2
PROGRAM MEMORY
WR
OE
1. PCPAGE and PCWORD are listed in
1. “XX” is don’t care. The letters refer to the programming description above.
PROGRAM
COUNTER
PAGE
0x10
A
PAGE ADDRESS
WITHIN THE FLASH
ADDR. LOW
PCMSB
B
DATA LOW
PCPAGE
C
DATA HIGH
D
E
XX
PAGEMSB
PCWORD
ADDR. LOW
B
WORD ADDRESS
WITHIN A PAGE
Table 104 on page 241
DATA LOW
C
(1)
F
INSTRUCTION WORD
DATA HIGH
D
PAGE
XX
E
ADDR. HIGH
G
(1)
.
H
PCWORD[PAGEMSB:0]:
XX
00
01
02
PAGEEND
2502K–AVR–10/06