ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 74
ATmega1284PR231
Manufacturer Part Number
ATmega1284PR231
Description
Manufacturer
Atmel Corporation
Datasheets
1.AT86RF231.pdf
(198 pages)
2.ATMEGA1284PR231.pdf
(380 pages)
3.ATMEGA1284PR231.pdf
(20 pages)
Specifications of ATmega1284PR231
Flash (kbytes)
128 Kbytes
Max. Operating Frequency
20 MHz
Max I/o Pins
32
Spi
3
Twi (i2c)
1
Uart
2
Adc Channels
8
Adc Resolution (bits)
10
Adc Speed (ksps)
15
Analog Comparators
1
Crypto Engine
AES
Sram (kbytes)
16
Eeprom (bytes)
4096
Operating Voltage (vcc)
1.8 to 3.6
Timers
3
Frequency Band
2.4 GHz
Max Data Rate (mb/s)
2
Antenna Diversity
Yes
External Pa Control
Yes
Power Output (dbm)
3
Receiver Sensitivity (dbm)
-101
Receive Current Consumption (ma)
13.2
Transmit Current Consumption (ma)
14.4
Link Budget (dbm)
104
- Current page: 74 of 198
- Download datasheet (5Mb)
8111C–MCU Wireless–09/09
Bit
+0x2E
Read/Write
Reset Value
R/W
AACK_FVN_MODE
7
0
R/W
6
1
• Bit [7:0] - CSMA_SEED_0
This register contains the lower 8-bit of the CSMA_SEED, bits [7:0]. The higher 3 bit are part of
register bits CSMA_SEED_1 (register 0x2E, CSMA_SEED_1). CSMA_SEED is the seed for the
random number generation that determines the length of the back-off period in the CSMA-CA
algorithm.
It is recommended to initialize registers CSMA_SEED by random values. This can be done
using register bits RND_VALUE (register 0x06, PHY_RSSI), refer to
Number Generator” on page
Register 0x2E (CSMA_SEED_1):
The CSMA_SEED_1 register is a control register for RX_AACK and contains a part of the
CSMA_SEED for the CSMA-CA algorithm.
Note:
• Bit [7:6] - AACK_FVN_MODE
The frame control field of the MAC header (MHR) contains a frame version subfield. The setting
of AACK_FVN_MODE specifies the frame filtering behavior of the AT86RF231. According to the
content of these register bits the radio transceiver passes frames with a specific frame version
number, number group, or independent of the frame version number.
Thus the register bit AACK_FVN_MODE defines the maximum acceptable frame version.
Received frames with a higher frame version number than configured do not pass the address
filter and are not acknowledged.
Table 7-19.
The frame version field of the acknowledgment frame is set to 0x00 according to IEEE 802.15.4-
2006, section 7.2.2.3.1, Acknowledgment frame MHR fields.
• Bit 5 - AACK_SET_PD
The content of AACK_SET_PD bit is copied into the frame pending subfield of the acknowledg-
ment frame if the ACK is the answer to a data request MAC command frame.
In addition, if register bits AACK_FVN_MODE (register 0x2E, CSMA_SEED_1) are configured
to accept frames with a frame version other than 0 or 1, the content of register bit
Register Bit
AACK_FVN_MODE
AACK_SET_PD
The register bits CSMA_SEED_0/1 content initializes the TX_ARET random backoff generator
after leaving SLEEP state. To prevent a reinitialization with the same value it is recommended to
reinitialize all register bits with random values before entering SLEEP state.
R/W
5
0
Register Bit Slotted Acknowledgement Operation
AACK_DIS_ACK
R/W
4
0
Value
136.
0
1
2
3
AACK_I_AM_COORD
State 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 independent of frame version number
R/W
3
0
R/W
2
0
CSMA_SEED_1
R/W
1
1
Section 11.2 “Random
AT86RF231
R/W
0
0
CSMA_SEED_1
74
Related parts for ATmega1284PR231
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
Microcontroller with 128K bytes In-system programmable flash, 8 MHz, power supply =2.7 - 5.5V
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
8-bit Microcontroller with 128K Bytes In-System Programmable Flash
Manufacturer:
ATMEL Corporation
Datasheet:
Part Number:
Description:
IC AVR MCU 2.4GHZ XCEIVER 64QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA644/AT86RF230 40-DIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 QFN
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
BUNDLE ATMEGA644P/AT86RF230 TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU ATMEGA1281/AT86RF230 64-TQFP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
MCU, 8BIT, AVR, 16K FLASH, 28PDIP
Manufacturer:
Atmel
Datasheet:
Part Number:
Description:
Microcontroller Modules MCU CARD BIGAVR6 100P W/ ATMEGA2560
Manufacturer:
mikroElektronika