ATMEGA128RZBV-8AU Atmel, ATMEGA128RZBV-8AU Datasheet - Page 76

• Manufacturer Part Number: ATMEGA128RZBV-8AU
• Description: MCU ATMEGA1280/AT86RF230 100TQFP
• Manufacturer: Atmel
• Series: ATMEGAr

Specifications of ATMEGA128RZBV-8AU

• 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: 100-TQFP
• Wireless Frequency: 2.4 GHz
• Interface Type: JTAG, SPI
• Output Power: 3 dBm
• For Use With: ATAVRISP2 - PROGRAMMER AVR IN 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
• For Use With/related Products: ATmega128

Figure 9-7. Frame Transmit Procedure - Transactions between AT86RF230 and
Microcontroller
Alternatively, the frame transmission can be started before the frame data download as
described in Figure 9-8. This is useful for time critical applications. At the rising edge of
SPL_TR, the radio transceiver starts transmitting the preamble and the SFD field, which
takes about 176 µs (see Figure 7-2). The first byte of the PSDU must be available in the
Frame Buffer before this time. The SPI data rate must be higher than 250 kBit/s to
ensure that no Frame Buffer under run occurs (IRQ_6, TRX_UR).
Figure 9-8. Time Optimized Frame Transmit Procedure - Transactions between
AT86RF230 and Microcontroller
AT86RF230
76
5131E-MCU Wireless-02/09