ATMEGA32-16MI Atmel, ATMEGA32-16MI Datasheet - Page 265
![IC AVR MCU 32K 16MHZ IND 44-QFN](/photos/12/13/121316/313-44-qfn_sml.jpg)
ATMEGA32-16MI
Manufacturer Part Number
ATMEGA32-16MI
Description
IC AVR MCU 32K 16MHZ IND 44-QFN
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA32-16MI
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
I²C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
32
Program Memory Size
32KB (16K x 16)
Program Memory Type
FLASH
Eeprom Size
1K x 8
Ram Size
2K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
44-VQFN Exposed Pad
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
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Programming the
EEPROM
Reading the Flash
2503Q–AVR–02/11
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):
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. RDY/BSY
3. Wait until to RDY/BSY goes high before programming the next page. (See
Figure 130. Programming the EEPROM Waveforms
The algorithm for reading the Flash memory is as follows (refer to
page 262
1. A: Load Command “0000 0010”.
2. G: Load Address High Byte ($00 - $FF)
3. B: Load Address Low Byte ($00 - $FF)
4. Set OE to “0”, and BS1 to “0”. The Flash word low byte can now be read at DATA.
5. Set BS1 to “1”. The Flash word high byte can now be read at DATA.
goes low.
signal waveforms)
RESET +12V
RDY/BSY
PAGEL
XTAL1
for details on Command and Address loading):
DATA
XA1
XA0
BS1
BS2
WR
OE
“Programming the Flash” on page 262
0x11
A
ADDR. HIGH
G
ADDR. LOW
B
DATA
C
Table 107 on page
XX
E
ADDR. LOW
B
for details on Command, Address and
DATA
K
C
259. When programming the
E
XX
“Programming the Flash” on
ATmega32(L)
L
Figure 130
for
265
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