AT86RF232 Atmel Corporation, AT86RF232 Datasheet - Page 55

• Manufacturer Part Number: AT86RF232
• Manufacturer: Atmel Corporation

Specifications of AT86RF232

• Max. Operating Frequency: 0 MHz
• Crypto Engine: AES
• Operating Voltage (vcc): 1.8 to 3.6
• Frequency Band: 2.4 GHz
• Max Data Rate (mb/s): 0.25
• Antenna Diversity: Yes
• External Pa Control: Yes
• Power Output (dbm): 3
• Receiver Sensitivity (dbm): -100
• Receive Current Consumption (ma): 11.8
• Transmit Current Consumption (ma): 13.8
• Link Budget (dbm): 103

7.2.3.4 Frame Filtering
8321A–MCU Wireless–10/11
Short Acknowledgment Frame (ACK) Start Timing
Register bit AACK_ACK_TIME (register 0x17, XAH_CTRL_1), see
the symbol time between frame reception and transmission of an acknowledgment
frame.
Table 7-11. Overview of RX_AACK Configuration Bits.
This feature can be used in all scenarios, independent of other configurations.
Frame Filtering is an evaluation whether or not a received frame is addressed to this
node. To accept a received frame and to generate an address match interrupt
IRQ_5 (AMI) a filtering procedure as described in IEEE 802.15.4-2006 Section 7.5.6.2.
(Third level of filtering) is applied to the frame. The Atmel AT86RF232 RX_AACK mode
accepts only frames that satisfy all of the following requirements (quote from
IEEE 802.15.4-2006, Section 7.5.6.2):
1. The Frame Type subfield shall not contain a reserved frame type.
2. The Frame Version subfield shall not contain a reserved value.
3. If a destination PAN identifier is included in the frame, it shall match macPANId or
4. If a short destination address is included in the frame, it shall match either
5. If the frame type indicates that the frame is a beacon frame, the source PAN
6. If only source addressing fields are included in a data or MAC command frame, the
The AT86RF232 requires satisfying two additional rules:
7. The frame type indicates that the frame is not an ACK frame (refer to
8. At least one address field must be present.
Address match, indicated by interrupt IRQ_5 (AMI), is further controlled by the content
of subfields of the frame control field of a received frame according to the following rule:
If (Destination Addressing Mode = 0 OR 1) AND (Source Addressing Mode = 0) no
IRQ_5 (AMI) is generated, refer to
Register
Address
shall be the broadcast PAN identifier (0xFFFF).
macShortAddress or the broadcast address (0xFFFF). Otherwise, if an extended
destination address is included in the frame, it shall match aExtendedAddress.
identifier shall match macPANId unless macPANId is equal to 0xFFFF, in which
case the beacon frame shall be accepted regardless of the source PAN identifier.
frame shall be accepted only if the device is the PAN coordinator and the source
PAN identifier matches macPANId.
0x17
Register
Bit
2
Register Name
AACK_ACK_TIME
Section
Description
0: Standard compliant acknowledgement
timing of 12 symbol periods. In slotted
acknowledgement operation mode, the
acknowledgment frame transmission can
be triggered two symbol periods after
reception of the frame earliest.
1: Reduced acknowledgment timing of two
symbol periods (32µs).
8.1.2.2. This effectively causes all
AT86RF232
Table
Table
7-11, defines
8-4).
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