ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 398

• 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 25-6. Status Code for Slave Transmitter Mode
398
0xA8
0xB0
0xB8
0xC0
0xC8
Status Code
Prescaler
Bits are 0
(TWSR)
ATmega128RFA1
Own SLA+R has been
received; ACK has been
returned
Arbitration lost in SLA+R/W
as Master; own SLA+R has
been received; ACK has
been returned
Data byte in TWDR has
been transmitted; ACK has
been received
Data byte in TWDR has
been transmitted; NOT
ACK has been received
Last data byte in TWDR
has been transmitted
(TWEA = “0”); ACK has
been received
Serial Bus and 2-wire
Status of the 2-wire
Serial Interface
Hardware
will then wake up from sleep and the TWI will hold the SCL clock will low during the
wake up and until the TWINT Flag is cleared (by writing it to one). Further data
transmission will be carried out as normal, with the AVR clocks running as normal.
Observe that if the AVR is set up with a long start-up time, the SCL line may be held
low for a long time, blocking other data transmissions.
Note that the 2-wire Serial Interface Data Register – TWDR does not reflect the last
byte present on the bus when waking up from these sleep modes.
To/from TWDR
Load data byte or
Load data byte
Load data byte or
Load data byte
Load data byte or
Load data byte
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action
No TWDR action or
No TWDR action or
No TWDR action or
No TWDR action
Application Software Response
STA
X
X
X
X
X
X
0
0
1
1
0
0
1
1
STD
0
0
0
0
0
0
0
0
0
0
0
0
0
0
To TWCR
TWINT
1
1
1
1
1
1
1
1
1
1
1
1
1
1
TWEA
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Next Action Taken by TWI
Hardware
Last data byte will be transmitted and
NOT ACK should be received Data
byte will be transmitted and ACK
should be received
Last data byte will be transmitted and
NOT ACK should be received Data
byte will be transmitted and ACK
should be received
Last data byte will be transmitted and
NOT ACK should be received
Data byte will be transmitted and
ACK should be received
Switched to the not addressed Slave
mode; no recognition of own SLA or
GCA
Switched to the not addressed Slave
mode; own SLA will be recognized;
GCA will be recognized if TWGCE =
“1”
Switched to the not addressed Slave
mode; no recognition of own SLA or
GCA; a START condition will be
transmitted when the bus becomes
free
Switched to the not addressed Slave
mode; own SLA will be recognized;
GCA will be recognized if TWGCE =
“1”; a START condition will be
transmitted when the bus becomes
free
Switched to the not addressed Slave
mode; no recognition of own SLA or
GCA
Switched to the not addressed Slave
mode; own SLA will be recognized;
GCA will be recognized if TWGCE =
“1”
Switched to the not addressed Slave
mode; no recognition of own SLA or
GCA; a START condition will be
transmitted when the bus becomes
free
Switched to the not addressed Slave
mode; own SLA will be recognized;
GCA will be recognized if TWGCE =
“1”; a START condition will be
transmitted when the bus becomes
free
8266A-MCU Wireless-12/09