ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 97

• 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

8266A-MCU Wireless-12/09
The transmission is started by enabling the PLL (TRX_CMD = PLL_ON) and writing the
TX_START command to register TRX_STATE.
Even for CW signal transmission it is required to write valid PSDU data to the Frame
Buffer. For PRBS mode it is recommended to write a frame of maximum length.
The detailed programming sequence is shown in
informs about writing (W) or reading (R) a register or the Frame Buffer.
Table 9-26. Continuous Transmission Programming Sequence
The content of the Frame Buffer has to be defined for Continuous Transmission PRBS
mode or CW mode. To measure the power spectral density (PSD) mask of the
transmitter it is recommended to use a random sequence of maximum length for the
PSDU data.
Notes:
Step
10
11
9
12
13
14
15
16
17
18
19
1
2
3
4
5
6
7
8
(1)
(1)
(2)
Action
RESET
Register Access
Register Access
Register Access
Register Access
Register Access
Register Access
Register Access
Register Access
Register Access
Frame Buffer
Write Access
Register Access
Register Access
Register Access
Interrupt event
Register Access
Measurement
Register Access
RESET
1. Only required for CW mode, do not configure for PRBS mode.
2. Frame Buffer content varies for different modulation schemes.
TST_CTRL_DIGI
PHY_TX_PWR
PHY_CC_CCA
TRX_STATUS
TRX_CTRL_1
TRX_CTRL_2
TRX_CTRL_2
TRX_STATE
TRX_STATE
TRX_STATE
PART_NUM
PART_NUM
IRQ_MASK
RX_CTRL
Register
R/
W
W
W
W
W
W
W
W
W
W
W
W
W
W
W
R
R
Value Description
0xA7
0x01
0x00
0x03
0x33
0x00
0x08
0x0F
0x03
0x54
0x46
0x09
0x01
0x02
0x00
Table 9-26
ATmega128RFA1
Reset the transceiver
Set IRQ mask register, enable
PLL_LOCK interrupt and set
global AVR IRQ enable
Disable TX_AUTO_CRC_ON
Set radio transceiver state
TRX_OFF
Set IEEE 802.15.4 CHANNEL,
e.g. 19
Set TX output power, e.g. to P
Verify TRX_OFF state
Enable Continuous Transmission
Test Mode – step # 1
Enable High Data Rate Mode, 2
Mb/s
Configure High Data Rate Mode
Write PSDU data (even for CW
mode), refer to
page 98
Enable Continuous Transmission
Test Mode – step # 2
Enable Continuous Transmission
Test Mode – step # 3
Enable PLL_ON state
Wait for PLL_LOCK interrupt
Initiate Transmission,
enter BUSY_TX state
Perform measurement
Disable Continuous
Transmission Test Mode
Reset the transceiver
below. The column R/W
Table 9-27 on
max
97