ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 391

• Manufacturer Part Number: ATMEGA128RFA1-ZU
• Description: IC AVR MCU 2.4GHZ XCEIVER 64QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RFA1-ZU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3.5dBm
• Sensitivity: -100dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Current - Receiving: 12.5mA
• Current - Transmitting: 14.5mA
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 16kB RAM
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VFQFN, Exposed Pad
• Rf Ic Case Style: QFN
• No. Of Pins: 64
• Supply Voltage Range: 1.8V To 3.6V
• Operating Temperature Range: -40°C To +85°C
• Svhc: No SVHC (15-Dec-2010)
• Rohs Compliant: Yes
• Processor Series: ATMEGA128x
• Core: AVR8
• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 128 KB
• Data Ram Size: 16 KB
• Interface Type: JTAG
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 38
• Number Of Timers: 6
• Operating Supply Voltage: 1.8 V to 3.6 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: EWAVR, EWAVR-BL
• Development Tools By Supplier: ATAVR128RFA1-EK1
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 25-3. Status codes for Master Transmitter Mode
25.7.2 Master Receiver Mode
8266B-MCU Wireless-03/11
0x08
0x10
0x18
0x20
0x28
0x30
0x38
Status Code
Prescaler
Bits are 0
(TWSR)
A START condition has
been transmitted
A repeated START
condition has been
transmitted
SLA+W has been
transmitted; ACK has
been received
SLA+W has been
transmitted; NOT ACK
has been received
Data byte has been
transmitted; ACK has
been received
Data byte has been
transmitted; NOT ACK
has been received
Arbitration lost in SLA+W
or data bytes
Serial Bus and 2-wire
Status of the 2-wire
Serial Interface
Hardware
In the Master Receiver mode, a number of data bytes are received from a Slave
Transmitter (for Slave see
a START condition must be transmitted. The format of the following address packet
determines whether Master Transmitter or Master Receiver mode is to be entered. If
SLA+W is transmitted, MT mode is entered, if SLA+R is transmitted, MR mode is
entered. All the status codes mentioned in this section assume that the prescaler bits
are zero or are masked to zero.
To/from TWDR
Load SLA+W
Load SLA+W or
Load SLA+R
Load data byte o
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
Load data byte or
No TWDR action or
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
Application Software Response
STA
Figure 25-13 on
0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
STO
0
0
0
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
To TWCR
TWINT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
page 392). In order to enter a Master mode,
TWEA
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
ATmega128RFA1
Next Action Taken by TWI
Hardware
SLA+W will be transmitted; ACK or
NOT ACK will be received
SLA+W will be transmitted; ACK or
NOT ACK will be received
SLA+R will be transmitted; Logic will
switch to Master Receiver mode
Data byte will be transmitted and
ACK or NOT ACK will be received
Repeated START will be transmitted
STOP condition will be transmitted
and TWSTO Flag will be reset
STOP condition followed by a START
condition will be transmitted and
TWSTO Flag will be reset
Data byte will be transmitted and
ACK or NOT ACK will be received
Repeated START will be transmitted
STOP condition will be transmitted
and TWSTO Flag will be rese
STOP condition followed by a START
condition will be transmitted and
TWSTO Flag will be reset
Data byte will be transmitted and
ACK or NOT ACK will be received
Repeated START will be transmitted
STOP condition will be transmitted
and TWSTO Flag will be reset
STOP condition followed by a START
condition will be transmitted and
TWSTO Flag will be reset
Data byte will be transmitted and
ACK or NOT ACK will be received
Repeated START will be transmitted
STOP condition will be transmitted
and TWSTO Flag will be reset
STOP condition followed by a START
condition will be transmitted and
TWSTO Flag will be reset
2-wire Serial Bus will be released and
not addressed Slave mode entered
A START condition will be
transmitted when the bus be-comes
free
391