Texas Instruments 3138 155 232931 - Manual (Page 63)

CC2420
SWRS041B Page 63 of 89
MAIN (0x10) - Main Control Register
Bit Field Name Reset R/W Description
15 RESETn 1 R/W Active low reset of the entire circuit should be applied before
doing anything else. Equivalent to using the RESETn reset pin.
14 ENC_RESETn 1 R/W Active low reset of the encryption module. (Test purposes only)
13 DEMOD_RESETn 1 R/W Active low reset of the demodulator module. (Test purposes
only)
12 MOD_RESETn 1 R/W Active low reset of the modulator module. (Test purposes only)
11 FS_RESETn 1 R/W Active low reset of the frequency synthesizer module. (Test
purposes only)
10:1 - 0 W0 Reserved, write as 0
0 XOSC16M_BYPASS 0 R/W Bypasses the crystal oscillator and uses a buffered version of the
signal on Q1 directly. This can be used to apply an external rail-
rail clock signal to the Q1 pin.