ATMEGA128RFA1-ZU Atmel, ATMEGA128RFA1-ZU Datasheet - Page 131
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: 131 of 555
- Download datasheet (6Mb)
9.12.47 CSMA_BE – Transceiver CSMA-CA Back-off Exponent Control Register
8266B-MCU Wireless-03/11
Table 9-70 AACK_FVN_MODE Register Bits
• Bit 5 – AACK_SET_PD - Set Frame Pending Sub-field
The content of AACK_SET_PD bit is copied into the frame pending subfield of the
acknowledgment frame if the acknowledgment is the answer to a data request MAC
command frame. If in addition the bits AACK_FVN_MODE of this register are
configured to accept frames with a frame version other than 0 or 1, the content of
register bit AACK_SET_PD is also copied into the frame pending subfield of the
acknowledgment frame for any MAC command frame with a frame version of 2 or 3 that
have the security enabled subfield set to 1. This is done in the assumption that a future
version of the IEEE 802.15.4 standard might change the length or structure of the
auxiliary security header, so that it is not possible to safely detect whether the MAC
command frame is actually a data request command or not.
• Bit 4 – AACK_DIS_ACK - Disable Acknowledgment Frame Transmission
If this bit is set no acknowledgment frames are transmitted in RX_AACK Extended
Operating Mode even if requested.
• Bit 3 – AACK_I_AM_COORD - Set Personal Area Network Coordinator
This register bit has to be set if the node is a PAN coordinator. It is used for address
filtering in RX_AACK.
• Bit 2:0 – CSMA_SEED_12:10 - Seed Value for CSMA Random Number
These bits contain the bits [10:8] of the CSMA_SEED. The lower part is defined in
register CSMA_SEED_0. See register CSMA_SEED_0 for details.
This register controls the back-off exponent for the CSMA-CA procedure.
• Bit 7:4 – MAX_BE3:0 - Maximum Back-off Exponent
These register bits define the maximum back-off exponent used in the CSMA-CA
algorithm to generate a pseudo random number for back off the CCA. For details refer
to IEEE 802.15.4-2006, section 7.5.1.4. Valid values are 3 to 8.
Bit
NA ($16F)
Read/Write
Initial Value
Bit
NA ($16F)
Read/Write
Initial Value
Register Bits
AACK_FVN_MODE1:0
Generator
MAX_BE3
MIN_BE3
RW
RW
7
0
3
0
MAX_BE2
MIN_BE2
RW
RW
6
1
2
0
Value
0
1
2
3
MAX_BE1
MIN_BE1
Description
Acknowledge frames with version number 0
Acknowledge frames with version number 0
or 1
Acknowledge frames with version number 0
or 1 or 2
Acknowledge frames independent of frame
version number
RW
RW
5
0
1
1
ATmega128RFA1
MAX_BE0
MIN_BE0
RW
RW
4
1
0
1
CSMA_BE
CSMA_BE
131
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