EM2420-STR Ember, EM2420-STR Datasheet - Page 68

• 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: -

SECCTRL1 (0x1A) - Security Control Register
15
14:8
7
6:0
BATTMON (0x1B) – Battery Monitor Control register
15:7
6
5
4:0
Ember Part Number: 120-0049-000D
Bit
Bit
Field Name
-
SEC_TXL
-
SEC_RXL
Field Name
-
BATT_OK
BATTMON_EN
BATTMON_VOLTAGE
[4:0]
Reset
0
0
0
0
Reset
0
0
0
0
EM2420 Datasheet
R/W
W0
R/W
W0
R/W
R/W
W0
R
R/W
R/W
Description
Reserved, write as 0
Multi-purpose length byte for TX in-line security operations:
CTR : Number of cleartext bytes between length byte and the
CBC/MAC : Number of cleartext bytes between length byte and
CCM : l(a), defining the number of bytes to be authenticated but
Stand-alone : SEC_TXL has no effect
Reserved, write as 0
Multi-purpose length byte for RX in-line security operations:
CTR : Number of cleartext bytes between length byte and the
CBC/MAC : Number of cleartext bytes between length byte and
CCM : l(a), defining the number of bytes to be authenticated but
Stand-alone : SEC_RXL has no effect
Description
Reserved, write as 0
Battery monitor comparator output, read only. BATT_OK is valid
5 us after BATTMON_EN has been asserted and
BATTMON_VOLTAGE has been programmed.
0 : Power supply < Toggle Voltage
1 : Power supply > Toggle Voltage
Battery monitor enable
0 : Battery monitor is disabled
1 : Battery monitor is enabled
Battery monitor toggle voltage. The toggle voltage is given by:
V
toggle
=
first byte to be encrypted
the first byte to be authenticated
not encrypted
first byte to be decrypted
the first byte to be authenticated
not decrypted
. 1
25
V
⋅
72
−
BATTMON_VO
27
EM2420
LTAGE
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