ATMEGA168PA-PU Atmel, ATMEGA168PA-PU Datasheet - Page 237
ATMEGA168PA-PU
Manufacturer Part Number
ATMEGA168PA-PU
Description
MCU, 8BIT, AVR, 16K FLASH, 28PDIP
Manufacturer
Atmel
Datasheet
1.ATMEGA48A-PU.pdf
(566 pages)
Specifications of ATMEGA168PA-PU
Controller Family/series
Atmega
No. Of I/o's
23
Eeprom Memory Size
512Byte
Ram Memory Size
1KB
Cpu Speed
20MHz
No.
RoHS Compliant
Core Size
8bit
Program Memory Size
16KB
Oscillator Type
External, Internal
Rohs Compliant
Yes
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA168PA-PU
Manufacturer:
TI
Quantity:
1 240
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21.7.4
8271C–AVR–08/10
Slave Transmitter Mode
Figure 21-16. 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 21-17. Data Transfer in Slave Transmitter Mode
ATmega48A/48PA/88A/88PA/168A/168PA/328/328
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
21-17). All the status codes mentioned in this section assume that the prescaler bits
From master to slave
From slave to master
TRANSMITTER
Device 1
SLAVE
S
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 2-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
P or S
P or S
P or S
P or S
$A0
$A0
R2
237
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