Texas Instruments 3138 155 232931 - Manual (Page 73)

CC2420
SWRS041B Page 73 of 89
MANFIDH (0x1F) - Manufacturer ID, Upper 16 Bit
Bit Field Name Reset R/W Description
15:12 VERSION[3:0] 3 R Version number. Current version is 3.
Note that previous CC2420 versions will have lower reset values.
11:0 PARTNUM[15:4] 0 R The device part number. CC2420 has part number 0x002.
FSMTC (0x20) - Finite state machine time constants
Bit Field Name Reset R/W Description
15:13 TC_RXCHAIN2RX[2:0] 3 R/W The time in 5 us steps between the time the RX chain is enabled
and the demodulator and AGC is enabled. The RX chain is
started when the bandpass filter has been calibrated (after 6.5
symbol periods).
12:10 TC_SWITCH2TX[2:0] 6 R/W The time in advance the RXTX switch is set high, before
enabling TX. In
µs.
9:6 TC_PAON2TX[3:0] 10 R/W The time in advance the PA is powered up before enabling TX.
In
µs.
5:3 TC_TXEND2SWITCH[2:0] 2 R/W The time after the last chip in the packet is sent, and the TXRX
switch is disabled. In
µs.
2:0 TC_TXEND2PAOFF[2:0] 4 R/W The time after the last chip in the packet is sent, and the PA is
set in power-down. Also the time at which the modulator is
disabled. In
µs.