ATmega1284PR231 Atmel Corporation, ATmega1284PR231 Datasheet - Page 55

• Manufacturer Part Number: ATmega1284PR231
• Manufacturer: Atmel Corporation

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

7.2.3.2
8111C–MCU Wireless–09/09
Configuration of IEEE Scenarios
are completely independent from RX_AACK mode. Each of these operating modes can be com-
bined with the RX_AACK mode.
Normal Device
Table 7-6 on page 55
ating as a normal device, rather than a PAN coordinator or router.
Table 7-6.
Notes
• If no short address has been configured before the device has been assigned one by the
• In IEEE 802.15.4-2003 standard the frame version subfield did not yet exist but was marked
0x20,0x21
0x22,0x23
• OQPSK_DATA_RATE
• SFD_VALUE
• ANT_DIV
• RX_PDT_LEVEL
Register
Address
PAN-coordinator, only frames directed to either the broadcast address or the IEEE address
are received.
as reserved. According to this standard, reserved fields have to be set to zero. On the other
hand, IEEE 802.15.4-2003 standard requires ignoring reserved bits upon reception. Thus,
there is a contradiction in the standard which can be interpreted in two ways:
...........
0x24,
0x2B
0x0C
0x2C
0x2E
Configuration of IEEE 802.15.4 Devices
Register
Bits
7:6
7
0
shows a typical RX_AACK configuration of an IEEE 802.15.4 device oper-
Register Name
SHORT_ADDR_0/1
PAN_ADDR_0/1
IEEE_ADDR_0
........
IEEE_ADDR_7
RX_SAFE_MODE
SLOTTED_OPERATION
AACK_FVN_MODE
(alternative SFD value)
(blocking frame reception of lower power signals)
(PSDU data rate)
(Antenna Diversity)
Description
Set node addresses
0: disable frame protection
1: enable frame protection
0: if transceiver works in unslotted mode
1: if transceiver works in slotted mode
Controls the ACK behavior, depending on FCF
frame version number
0x00: acknowledges only frames with version
number 0, i.e. according to IEEE 802.15.4-2003
frames
0x01: acknowledges only frames with version
number 0 or 1, i.e. frames according to IEEE
802.15.4-2006
0x10: acknowledges only frames with version
number 0 or 1 or 2
0x11: acknowledges all frames, independent of
the FCF frame version number
AT86RF231
55