EM2420-STR Ember, EM2420-STR Datasheet - Page 67

• 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: -

SECCTRL0 (0x19) - Security Control Register
15:10
9
8
7
6
5
4:2
1:0
Ember Part Number: 120-0049-000D
Bit
Field Name
-
RXFIFO_PROTECTION
SEC_CBC_HEAD
SEC_SAKEYSEL
SEC_TXKEYSEL
SEC_RXKEYSEL
SEC_M[2:0]
SEC_MODE[1:0]
Reset
0
1
1
1
1
0
1
0
EM2420 Datasheet
R/W
W0
R/W
R/W
R/W
R/W
R/W
R/W
R/W
Description
Reserved, write as 0
Protection enable of the RXFIFO, see description in the RXFIFO
overflow section on page 29. Should be cleared if MAC level
security is not used or is implemented outside the EM2420.
Defines what to use for the first byte in CBC-MAC (does not
apply to CBC-MAC part of CCM):
0 : Use the first data byte as the first byte into CBC-MAC
1 : Use the length of the data to be authenticated (calculated as
(the packet length field – SEC_TXL – 2) for tx or using SEC_RXL
for rx) as the first byte into CBC-MAC (before the first data byte).
This bit should be set high for CBC-MAC 802.15.4 inline security.
Stand Alone Key select
0 : Key 0 is used
1 : Key 1 is used
TX Key select
0 : Key 0 is used
1 : Key 1 is used
RX Key select
0 : Key 0 is used
1 : Key 1 is used
Number of bytes in authentication field for CBC-MAC, encoded
as (M-2)/2
0 : Reserved
1 : 4
2 : 6
3 : 8
4 : 10
5 : 12
6 : 14
7 : 16
Security mode
0 : In-line security is disabled
1 : CBC-MAC
2 : CTR
3 : CCM
EM2420
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