ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 392

• 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 25-4. Status codes for Master Receiver Mode
392
0x08
0x10
0x38
0x40
0x48
0x50
0x58
Status Code
Prescaler
Bits are 0
(TWSR)
ATmega128RFA1
Serial Bus and 2-wire
A START condition has
been transmitted
A repeated START
condition has been
transmitted
Arbitration lost in SLA+R
or NOT ACK bit
SLA+R has been
transmitted; ACK has
been received
SLA+R has been
transmitted; NOT ACK
has been received
Data byte has been
received; ACK has been
returned
Data byte has been
received; NOT ACK has
been returned
Serial Interface Hard-
Status of the 2-wire
ware
START enables the Master to switch between Slaves, Master Transmitter mode and
Master Receiver mode without losing control over the bus.
To/from TWDR
Load SLA+R
Load SLA+R or
Load SLA+W
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action or
No TWDR action
Read data byte or
Read data byte
Read data byte or
Read data byte or
Read data byte
Application Software Response
STA
0
0
0
0
1
0
0
1
0
1
0
0
1
0
1
STD
0
0
0
0
0
0
0
0
1
1
0
0
0
1
1
To TWCR
TWINT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
TWEA
X
X
X
X
X
X
X
X
X
X
X
0
1
0
1
Next Action Taken by TWI
Hardware
SLA+R will be transmitted ACK or
NOT ACK will be received
SLA+R will be transmitted ACK or
NOTACK will be received
SLA+W will be transmitted Logic will
switch to Master Transmitter mode
2-wire Serial Bus will be released
and not addressed Slave mode will
be entered
A START condition will be
transmitted when the bus becomes
free
Data byte will be received and NOT
ACK will be returned
Data byte will be received and ACK
will be returned
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 received and NOT
ACK will be returned
Data byte will be received and ACK
will be returned
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
8266A-MCU Wireless-12/09