ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 108
ATMEGA128RFA1-ZU
Manufacturer Part Number
ATMEGA128RFA1-ZU
Description
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer
Atmel
Series
ATMEGAr
Datasheets
1.ATMEGA128-16AU.pdf
(385 pages)
2.ATAVR128RFA1-EK1.pdf
(13 pages)
3.ATAVR128RFA1-EK1.pdf
(555 pages)
4.ATMEGA128RFA1-ZU.pdf
(524 pages)
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
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
ATMEGA128RFA1-ZU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
Company:
Part Number:
ATMEGA128RFA1-ZUR
Manufacturer:
ON
Quantity:
56 000
- ATMEGA128-16AU PDF datasheet
- ATAVR128RFA1-EK1 PDF datasheet #2
- ATAVR128RFA1-EK1 PDF datasheet #3
- ATMEGA128RFA1-ZU PDF datasheet #4
- Current page: 108 of 524
- Download datasheet (5Mb)
9.12.11 PHY_ED_LEVEL – Transceiver Energy Detection Level Register
108
ATmega128RFA1
valid until the next TRX24_RX_END interrupt is issued, caused by a new frame
reception.
Table 9-39 RX_CRC_VALID Register Bits
• Bit 6:5 – RND_VALUE1:0 - Random Value
reading register bits RND_VALUE. The value can be used for random numbers for
security applications. Note that the radio transceiver shall be in Basic Operating Mode
receive state. The values are updated every 1 µs.
• Bit 4:0 – RSSI4:0 - Receiver Signal Strength Indicator
The result of the automated RSSI measurement is stored in these register bits. The
value is updated every 2µs in receive states. The read value is a number between 0
and 28 indicating the received signal strength as a linear curve on a logarithmic input
power scale (dBm) with a resolution of 3 dB. A RSSI value of 0 indicates a RF input
power lower than RSSI_BASE_VAL (-90 dBm). A value of 28 marks a power higher or
equal to -10 dBm.
Table 9-40 RSSI Register Bits
This register contains the result of an Energy Detection measurement.
• Bit 7:0 – ED_LEVEL7:0 - Energy Detection Level
The minimum ED value (ED_LEVEL = 0) indicates a receiver power less than or equal
to RSSI_BASE_VAL. The range is 84 dB with a resolution of 1 dB and an absolute
accuracy of ±5 dB. A manual ED measurement can be initiated by a write access to this
register. A value of 0xFF signals that no measurement has yet been started (reset
value). The measurement duration is 8 symbol periods (128 µs) for a data rate of 250
kb/s. For High Data Rate Modes the automated measurement duration is reduced to 32
Bit
NA ($147)
Read/Write
Initial Value
Bit
NA ($147)
Read/Write
Initial Value
Register Bits
RX_CRC_VALID
Register Bits
RSSI4:0
ED_LEVEL7
ED_LEVEL3
R
R
7
1
3
1
ED_LEVEL6
ED_LEVEL2
R
R
6
1
2
1
Value
Value
28
0
1
0
1
2
A 2-bit random value can be retrieved by
ED_LEVEL5
ED_LEVEL1
Description
CRC (FCS) not valid
CRC (FCS) valid
Description
Minimum RSSI value: P(RF) < -90 dBm
P(RF) = RSSI_BASE_VAL+3 · (RSSI-1)
[dBm]
...
Maximum RSSI value: P(RF)
R
R
5
1
1
1
ED_LEVEL4
ED_LEVEL0
R
R
4
1
0
1
8266A-MCU Wireless-12/09
PHY_ED_LEVEL
PHY_ED_LEVEL
-10 dBm
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