CC2430 Datasheet, PDF (206/234 Pages) Texas Instruments – A True System-on-Chip solution for 2.4 GHz IEEE 802.15.4 / ZigBee-TM

CC2430
Bit Name
Reset R/W Description
7
SLOTTED_ACK
6
-
5
CORR_THR_SFD
4:0 CORR_THR[4:0]
0
0
1
0x10
R/W
R/W
R/W
R/W
SLOTTED_ACK defines the timing of automatically
transmitted acknowledgment frames.
0 : The acknowledgment frame is transmitted 12 symbol
periods after the incoming frame.
1 : The acknowledgment frame is transmitted between 12
and 30 symbol periods after the incoming frame. The timing
is defined such that there is an integer number of 20-symbol
periods between the received and the transmitted SFDs.
This may be used to transmit slotted acknowledgment
frames in a beacon enabled network.
Reserved
CORR_THR_SFD defines the level at which the
CORR_THR correlation threshold is used to filter out
received frames.
0 : Same filtering as CC2420, should be combined with a
CORR_THR of 0x14
1 : More extensive filtering is performed, which will result in
less false frame detections e.g. caused by noise.
Demodulator correlator threshold value, required before
SFD search.
Table 48: Register MDMCTRL1H (0xDF04)
Bit Name
Reset R/W Description
7:6 -
5
DEMOD_AVG_MODE
4
MODULATION_MODE
3:2 TX_MODE[1:0]
1:0 RX_MODE[1:0]
00
R0
Reserved, read as 0.
0
R/W DC average filter behavior.
0 : Lock DC level to be removed after preamble match
1 : Continuously update DC average level.
0
R/W Set one of two RF modulation modes for RX / TX
0 : IEEE 802.15.4 compliant mode
1 : Reversed phase, non-IEEE compliant (could be used to
set up a system which will not receive 802.15.4 packets)
00
R/W Set test modes for TX
00 : Normal operation, transmit TXFIFO
01 : Serial mode, use transmit data on serial interface,
infinite transmission.
10 : TXFIFO looping ignore underflow in TXFIFO and read
cyclic, infinite transmission.
11 : Send random data from CRC, infinite transmission.
00
R/W Set test mode of RX
00 : Normal operation, use RXFIFO
01 : Receive serial mode, output received data on pins.
Infinite RX.
10 : RXFIFO looping ignore overflow in RXFIFO and write
cyclic, infinite reception.
11 : Reserved
Table 49: Register MDMCTRL1L (0xDF05)
CC2430 PRELIMINARY Data Sheet (rev. 1.03) SWRS036A
Page 206 of 232