ATMEGA324PA-AUR Atmel, ATMEGA324PA-AUR Datasheet - Page 229
ATMEGA324PA-AUR
Manufacturer Part Number
ATMEGA324PA-AUR
Description
MCU AVR 32KB FLASH 20 MHZ 44TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Datasheet
1.ATMEGA324PA-AUR.pdf
(468 pages)
Specifications of ATMEGA324PA-AUR
Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
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)
1.8 V ~ 5.5 V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
*
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
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Part Number
Manufacturer
Quantity
Price
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20.7.4
8152G–AVR–11/09
Slave Transmitter Mode
Figure 20-16. Formats and States in the Slave Receiver Mode
In the Slave Transmitter mode, a number of data bytes are transmitted to a Master Receiver
(see
are zero or are masked to zero.
Figure 20-17. Data Transfer in Slave Transmitter Mode
Figure
Reception of the own
slave address and one or
more data bytes. All are
acknowledged
Last data byte received
is not acknowledged
Arbitration lost as master
and addressed as slave
Reception of the general call
address and one or more data
bytes
Last data byte received is
not acknowledged
Arbitration lost as master and
addressed as slave by general call
SDA
SCL
20-17). All the status codes mentioned in this section assume that the prescaler bits
From master to slave
From slave to master
TRANSMITTER
Device 1
S
SLAVE
ATmega164PA/324PA/644PA/1284P
SLA
General Call
Device 2
RECEIVER
MASTER
W
DATA
$60
$68
$70
$78
Device 3
A
A
A
A
n
A
........
DATA
DATA
Any number of data bytes
and their associated acknowledge bits
This number (contained in TWSR) corresponds
to a defined state of the Two-Wire Serial Bus. The
prescaler bits are zero or masked to zero
Device n
$80
$90
A
A
V
CC
DATA
DATA
R1
$80
$90
$88
$98
A
A
A
A
R2
P or S
P or S
P or S
P or S
$A0
$A0
229
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