ATMEGA1284PR212-MU Atmel, ATMEGA1284PR212-MU Datasheet - Page 224

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ATMEGA1284PR212-MU

Manufacturer Part Number
ATMEGA1284PR212-MU
Description
BUNDLE ATMEGA1284P/RF212 QFN
Manufacturer
Atmel
Datasheet

Specifications of ATMEGA1284PR212-MU

Frequency
2.4GHz
Modulation Or Protocol
802.15.4 Zigbee, 6LoWPAN, ISM
Data Interface
PCB, Surface Mount
Memory Size
128kB Flash, 4kB EEPROM, 16kB RAM
Antenna Connector
PCB, Surface Mount
Package / Case
44-QFN, 32-QFN
Processor Series
ATMEGA128x
Core
AVR8
Data Bus Width
8 bit
Program Memory Type
Flash
Program Memory Size
128 KB
Data Ram Size
16 KB
Development Tools By Supplier
ATAVRRZ541, ATAVRRAVEN, ATAVRRZUSBSTICK, ATAVRISP2, ATAVRRZ201
For Use With
ATSTK600 - DEV KIT FOR AVR/AVR32
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Voltage - Supply
-
Power - Output
-
Operating Temperature
-
Applications
-
Sensitivity
-
Data Rate - Maximum
-
Current - Transmitting
-
Current - Receiving
-
Lead Free Status / Rohs Status
 Details
19.7.3
8059D–AVR–11/09
Slave Receiver Mode
Figure 19-14. 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 19-15. Data transfer in Slave Receiver mode
To initiate the Slave Receiver mode, TWAR and TWCR must be initialized as follows:
TWAR
value
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
19-15). All the status codes mentioned in this section assume that the prescaler bits
SDA
SCL
From master to slave
From slave to master
$08
S
TWA6
SLA
Device 1
RECEIVER
SLAVE
R
TWA5
MR
TRANSMITTER
A or A
Device 2
DATA
$40
$48
$38
$68
MASTER
A
A
A
$78
TWA4
Other master
Other master
n
continues
continues
Device’s Own Slave Address
P
$B0
DATA
Device 3
A
TWA3
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
........
$50
$38
To corresponding
states in slave mode
A
A
TWA2
Device n
Other master
DATA
continues
V
CC
$58
A
ATmega1284P
TWA1
R1
$10
R
P
S
R2
TWA0
SLA
W
R
TWGCE
MT
224

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