AT86RF230 Atmel Corporation, AT86RF230 Datasheet - Page 14
AT86RF230
Manufacturer Part Number
AT86RF230
Description
Manufacturer
Atmel Corporation
Datasheet
1.AT86RF230.pdf
(98 pages)
Specifications of AT86RF230
Crypto Engine
No
Operating Voltage (vcc)
1.8 to 3.6
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
0.25
Antenna Diversity
No
External Pa Control
No
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
16.0
Transmit Current Consumption (ma)
17.0
Link Budget (dbm)
104
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Manufacturer
Quantity
Price
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Part Number:
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SOFTDEVIC
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Part Number:
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Manufacturer:
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Figure 6-8. Packet Structure - Frame Buffer Read Access
Figure 6-9. Example SPI Sequence - Frame Buffer Write Sequence of a Frame with 4-byte PSDU
Figure 6-10. Example SPI Sequence - Frame Buffer Read Sequence of a Frame with 4-byte PSDU
6.2.3 SRAM Access Mode
SCLK
MOSI
MISO
SCLK
MOSI
MISO
14
SEL
SEL
AT86RF230
COMMAND
COMMAND
XX
XX
PHR
The number of bytes n for one Frame Buffer access is calculated as follow:
Receive:
Transmit:
The maximum value of frame_length is 127 bytes. That means that n ≤ 130 for Frame
Buffer read access and n ≤ 129 for Frame Buffer write access. Each read or write of a
data byte increments automatically the address counter of the Frame Buffer until the
access is terminated by setting SEL = H.
Figure 6-9 and Figure 6-10 illustrate an example SPI sequence of a Frame Buffer
access to write and read a frame with 4-byte PSDU respectively.
XX
Access violations during a Frame Buffer write or read access are indicated by a
TRX_UR interrupt. For further details refer to section 9.3.3.
The SRAM access mode allows access to certain bytes within the Frame Buffer. This
may reduce SPI traffic.
PHR
XX
PSDU 1
PSDU 1
XX
XX
n = 3 + frame_length
[command byte, frame length byte, PSDU data, LQI byte]
n = 2 + frame_length
[command byte, frame length byte, PSDU data]
PSDU 2
PSDU 2
XX
XX
PSDU 3
PSDU 3
XX
XX
PSDU 4
PSDU 4
XX
XX
5131E-MCU Wireless-02/09
LQI
XX