ATMEGA8515L-8MUR Atmel, ATMEGA8515L-8MUR Datasheet - Page 187
ATMEGA8515L-8MUR
Manufacturer Part Number
ATMEGA8515L-8MUR
Description
MCU AVR 8KB FLASH 8MHZ 44QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA8515L-8MC.pdf
(257 pages)
Specifications of ATMEGA8515L-8MUR
Core Processor
AVR
Core Size
8-Bit
Speed
8MHz
Connectivity
EBI/EMI, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
35
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
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Programming the EEPROM
2512K–AVR–01/10
Figure 77. Programming the Flash Waveforms
Note:
The EEPROM is organized in pages, see Table 90 on page 183. When programming
the 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 “Programming the Flash” on page 185 for details on
Command, Address and Data loading):
1. A: Load Command “0001 0001”.
2. G: Load Address High Byte ($00 - $FF).
3. B: Load Address Low Byte ($00 - $FF).
4. C: Load Data ($00 - $FF).
5. E: Latch data (give PAGEL a positive pulse).
K: Repeat 3 through 5 until the entire buffer is filled.
L: Program EEPROM page.
1. Set BS1 to “0”.
2. Give WR a negative pulse. This starts programming of the EEPROM page.
3. Wait until to RDY/BSY goes high before programming the next page.
RESET +12V
RDY/BSY
PAGEL
RDY/BSY goes low.
(See Figure 78 for signal waveforms.)
XTAL1
DATA
XA1
XA0
BS1
BS2
WR
OE
“XX” is don’t care. The letters refer to the programming description above.
$10
A
ADDR. LOW
B
DATA LOW
C
DATA HIGH
D
XX
E
ADDR. LOW
B
DATA LOW
C
F
DATA HIGH
D
ATmega8515(L)
XX
E
ADDR. HIGH
G
H
XX
187
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