CC2520_11 Datasheet, PDF (95/133 Pages) Texas Instruments – 2.4 GHZ IEEE 802.15.4/ZIGBEE RF TRANSCEIVER

CC2520 DATASHEET
2.4 GHZ IEEE 802.15.4/ZIGBEE® RF TRANSCEIVER
SWRS068 – DECEMBER 2007
26.4 ECBO
The ECBO instruction is identical to ECB, except that it will store its output to the same memory locations as
the input was read from. It will always output 16 bytes even though the input was not a full 16 bytes.
26.5 ECBX
The ECBX instruction is identical to ECB, except that it will bitwise XOR the result from the encryption with
the memory contents of the output address.
The values of the parameters E and C should be selected with care so that the instruction does not
overwrite a section of the memory that is already in use. The ECBX instruction will work exactly as ECBXO if
E=A.
Note that the terminology from counter mode encryption is used in Figure 37.
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