EM2420-STR Ember, EM2420-STR Datasheet - Page 37

• Manufacturer Part Number: EM2420-STR
• Description: IC RF TXRX ZIGBEE 2.4GHZ 48-QLP
• Manufacturer: Ember

Specifications of EM2420-STR

• Mfg Application Notes: EM2420
• Frequency: 2.4GHz
• Data Rate - Maximum: 250kbps
• Modulation Or Protocol: 802.15.4
• Applications: ZigBee™
• Power - Output: -3dBm
• Sensitivity: -94dBm
• Voltage - Supply: 2.1 V ~ 3.6 V
• Current - Receiving: 19.7mA
• Current - Transmitting: 17.4mA
• Data Interface: PCB, Surface Mount
• Antenna Connector: PCB, Surface Mount
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 48-QLP
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Memory Size: -

Address Recognition
The
address recognition, as specified in [1].
Hardware address recognition may be
enabled
MDMCTRL0.ADR_DECODE control bit.
Address recognition is based on the
following requirements, listed from section
7.5.6.2 in [1]:
Ember Part Number: 120-0049-000D
FIFO (from
Incoming / outgoing
•
•
•
•
EM2420
FIFO (from uC)
Transmit mode:
Receive mode:
The frame type subfield shall not
contain an illegal frame type
If the frame type indicates that the
frame is a beacon frame, the
source PAN identifier shall match
macPANId unless macPANId is
equal to 0xFFFF, in which case
the
accepted regardless of the source
PAN identifier.
If a destination PAN identifier is
included in the frame, it shall
match macPANId or shall be the
broadcast
(0xFFFF).
If a short destination address is
included in the frame, it shall
match either macShortAddress or
the broadcast address (0xFFFF).
Otherwise
destination address is included in
the
aExtendedAddress.
/
includes hardware support for
RF data
EM2420
beacon
frame,
FIFOP
FIFOP
disabled
)
if
Figure 20. Un-buffered test mode, pin activity
PAN
frame
it
Preamble
an
shall
using
shall
extended
identifier
match
EM2420 Datasheet
the
be
SFD
4 us
b0
b1
If any of the above requirements are not
satisfied
enabled, the
incoming frame and flush the data from
the RXFIFO. Only data from the rejected
frame is flushed. Data from previously
accepted frames may still be in the
RXFIFO.
The IOCFG0.BCN_ACCEPT control bit
must be set when the PAN identifier
programmed into the
to 0xFFFF and cleared otherwise. This
particularly applies to active and passive
scans as defined by [1] which requires all
received beacons to be processed by the
MAC sublayer.
Incoming frames with reserved frame
types (FCF frame type subfield is 4, 5, 6 or
7)
RESERVED_FRAME_MODE control bit in
MDMCTRL0 is set. In this case, no further
address recognition is performed on these
frames. This option is included for future
expansions
standard.
If a frame is rejected, the
start searching for a new frame after the
b2
•
b3
b4
If only source addressing fields
are included in a data or MAC
command frame, the frame shall
only be accepted if the device is a
PAN coordinator and the source
PAN
macPANId.
is
b5
s0
and
b6
b7
of
EM2420
b8
accepted
address
b9
identifier
the
s1
b10 b11
EM2420
will disregard the
EM2420
b8
IEEE
EM2420
recognition
b9
b0
RAM is equal
s2
b10 b11
b1
Page 37 of 84
if
b2
802.15.4
matches
will only
b3
b4
the
is