AT86RF232 Atmel Corporation, AT86RF232 Datasheet - Page 83

• 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

8.1.2.3 Frame Compatibility between IEEE 802.15.4-2003 and IEEE 802.15.4-2006
8.1.2.4 Sequence Number
8.1.2.5 Addressing Fields
8.1.2.6 Auxiliary Security Header Field
8321A–MCU Wireless–10/11
All unsecured frames according to IEEE 802.15.4-2006 are compatible with unsecured
frames compliant with IEEE 802.15.4-2003 with two exceptions: a coordinator
realignment
IEEE 802.15.4-2006, Section 7.3.8) and any frame with a MAC Payload field larger than
aMaxMACSafePayloadSize octets.
Compatibility for secured frames is shown in
operating modes for IEEE 802.15.4-2006.
Table 8-5. Frame Control Field – Security and Frame Version.
The one-octet sequence number following the FCF identifies a particular frame, so that
duplicated frame transmissions can be detected. While operating in RX_AACK mode,
the content of this field is copied from the frame to be acknowledged into the
acknowledgment frame.
The addressing fields of the MPDU are used by the Atmel AT86RF232 for address
matching indication. The destination address (if present) is always first, followed by the
source address (if present). Each address field consists of the PAN-ID and a device
address. If both addresses are present, and the “PAN ID compression” subfield in the
FCF is set to one, the source PAN-ID is omitted.
Note that in addition to these general rules, IEEE 802.15.4 further restricts the valid
address combinations for the individual possible MAC frame types. For example, the
situation where both addresses are omitted (source addressing mode = 0 and
destination addressing mode = 0) is only allowed for acknowledgment frames. The
address filter in the AT86RF232 has been designed to apply to IEEE 802.15.4
compliant frames. It can be configured to handle other frame formats and exceptions.
The Auxiliary Security Header specifies information required for security processing and
has a variable length. This field determines how the frame is actually protected (security
level) and which keying material from the MAC security PIB is used (see
IEEE 802.15.4-2006, Section 7.6.1). This field shall be present only if the Security
Enabled subfield b3, see
IEEE 802.15.4-2006, Section 7.6.2 Auxiliary security header.
Frame Control Field Bit Assignments
Security Enabled
b
0
0
1
1
3
command
Frame Version
Section
frame
b
13
00
01
00
01
b
12
8.1.2.3, is set to one. For details of its structure, see
with
the
Description
No security. Frames are compatible between
IEEE 802.15.4-2003 and IEEE 802.15.4-2006.
No security. Frames are not compatible between
IEEE 802.15.4-2003 and IEEE 802.15.4-2006.
Secured frame formatted according to
IEEE 802.15.4-2003. This frame type is not
supported in IEEE 802.15.4-2006.
Secured frame formatted according to
IEEE 802.15.4-2006
“Channel
Table
8-5, which identifies the security
Page”
AT86RF232
field
present
(see
83