ATmega168 Automotive Atmel Corporation, ATmega168 Automotive Datasheet - Page 224
ATmega168 Automotive
Manufacturer Part Number
ATmega168 Automotive
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT90CAN128_AUTOMOTIVE.pdf
(225 pages)
2.ATMEGA168_AUTOMOTIVE.pdf
(19 pages)
3.ATMEGA168_AUTOMOTIVE.pdf
(340 pages)
Specifications of ATmega168 Automotive
Flash (kbytes)
16 Kbytes
Pin Count
32
Max. Operating Frequency
16 MHz
Cpu
8-bit AVR
# Of Touch Channels
16
Hardware Qtouch Acquisition
No
Max I/o Pins
23
Ext Interrupts
24
Usb Speed
No
Usb Interface
No
Spi
2
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)
1
Eeprom (bytes)
512
Self Program Memory
YES
Dram Memory
No
Nand Interface
No
Picopower
No
Temp. Range (deg C)
-40 to 150
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
6
Input Capture Channels
1
Pwm Channels
6
32khz Rtc
Yes
Calibrated Rc Oscillator
Yes
- AT90CAN128_AUTOMOTIVE PDF datasheet
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- ATMEGA168_AUTOMOTIVE PDF datasheet #3
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19.8.3
224
ATmega48/88/168 Automotive
Slave Receiver Mode
Figure 19-15. Formats and States in the Master Receiver Mode
In the Slave Receiver mode, a number of data bytes are received from a Master Transmitter
(see
are zero or are masked to zero.
Figure 19-16. Data transfer in Slave Receiver mode
Successfull
reception
from a slave
receiver
Next transfer
started with a
repeated start
condition
Not acknowledge
received after the
slave address
Arbitration lost in slave
address or data byte
Arbitration lost and
addressed as slave
Figure
SDA
SCL
19-16). All the status codes mentioned in this section assume that the prescaler bits
From master to slave
From slave to master
$08
S
SLA
Device 1
RECEIVER
SLAVE
R
MR
TRANSMITTER
Device 2
A or A
DATA
MASTER
$40
$48
$38
$68
A
A
A
$78
Other master
Other master
n
continues
continues
P
$B0
DATA
Device 3
A
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
........
$50
$38
To corresponding
states in slave mode
A
A
Other master
Device n
DATA
continues
V
CC
$58
A
R1
$10
R
P
S
R2
SLA
7530I–AVR–02/10
W
R
MT
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