ATMEGA128RZAV-8MU Atmel, ATMEGA128RZAV-8MU Datasheet - Page 29

• Manufacturer Part Number: ATMEGA128RZAV-8MU
• Description: MCU ATMEGA1281/AT86RF230 64-QFN
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RZAV-8MU

• Frequency: 2.4GHz
• Data Rate - Maximum: 2Mbps
• Modulation Or Protocol: 802.15.4 Zigbee
• Applications: General Purpose
• Power - Output: 3dBm
• Sensitivity: -101dBm
• Voltage - Supply: 1.8 V ~ 3.6 V
• Data Interface: PCB, Surface Mount
• Memory Size: 128kB Flash, 4kB EEPROM, 8kB RAM
• Antenna Connector: PCB, Surface Mount
• Package / Case: 64-QFN
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN SYSTEMATJTAGICE2 - AVR ON-CHIP D-BUG SYSTEMATSTK501 - ADAPTER KIT FOR 64PIN AVR MCUATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Operating Temperature: -
• Current - Transmitting: -
• Current - Receiving: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

7.2 Extended Operating Mode
5131E-MCU Wireless-02/09
Bit
0x02
Read/Write
Reset value
Bit
0x02
Read/Write
Reset value
• Bit [7:5] – TRAC_STATUS
Refer to section 7.2.6.
• Bit [4:0] – TRX_CMD
A write access to register bits TRX_CMD initiates a radio transceiver state transition
towards the new state.
Table 7-4. State Control Commands, Register Bits TRX_CMD
The Extended Operating Mode goes beyond the basic radio transceiver functionality
provided by the Basic Operating Mode. Specific functionality requested by the
IEEE 802.15.4-2003 standard is supported such as automatic acknowledgement and
automatic frame retransmission. This results in a more efficient IEEE 802.15.4-2003
software MAC implementation including reduced code size, the possible use of a
smaller microcontroller or the ability to simplify the handling of time-critical tasks.
The Extended Operating Mode is designed to support IEEE 802.15.4-2003 standard
compliant frames. While using the Extended Operating Mode, the AT86RF230 radio
transceiver supports:
• Automatic address filtering
• Automatic acknowledgement (RX_AACK) and
• Automatic CSMA-CA with optional frame retransmission (TX_ARET)
Note, the Extended Operating Mode does not support slotted CSMA-CA.
Register Bits
TRX_CMD
Notes:
1. TRX_CMD = 0 after power-on reset (POR) only
2. Frame transmission starts 16 µs (1 symbol) after TX_START
3. Extended Operating Mode only, refer to section 7.2
R/W
R
7
0
3
0
Value[4:0]
0x00
0x02
0x16
0x19
0x03
0x06
0x08
0x09
TRAC_STATUS
(1)
(2)
(3)
(3)
R/W
R
6
0
2
0
State Transition towards
NOP
TX_START
FORCE_TRX_OFF
RX_ON
TRX_OFF (Clock State)
PLL_ON (TX_ON)
RX_AACK_ON
TX_ARET_ON
All other values are reserved
TRX_CMD
R/W
R
5
0
1
0
TRX_CMD
R/W
R/W
AT86RF230
4
0
0
0
TRX_STATE
TRX_STATE
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