CC2400 Chipcon AS, CC2400 Datasheet - Page 62

• Manufacturer Part Number: CC2400
• Description: 2.4 GHz RF Transceiver
• Manufacturer: Chipcon AS

9:8
7:0
MDMTST1 (0x15) - Modem Test Register 1
15:7
6:0
DACTST (0x16) - DAC Test Register
15
14:12
11:6
5:0
Chipcon AS
Bit
Bit
Bit
Field Name
AFC_SETTLING[1:0]
AFC_DELTA[7:0]
Field Name
-
BSYNC_THRESHOLD[6:0]
Field Name
-
DAC_SRC[2:0]
DAC_I_O[5:0]
DAC_Q_O[5:0]
SmartRF
®
CC2400 PRELIMINARY Datasheet (rev. 1.1), 2003-10-02
Reset
3
75
Reset
0
75
Reset
0
0
0
0
R/W
R/W
R/W
R/W
W0
R/W
R/W
W0
R/W
R/W
R/W
SmartRF
Description
Controls how many max-min pairs that are used to compute the
output.
00: 1 pair
01: 2 pairs
10: 4 pairs
11: 8 pairs
Programmable level used in AFC-algorithm that indicates the
expected frequency deviation of the received signal. See page
40 for further details.
Description
Reserved, write as 0.
Threshold value used in clock recovery algorithm. Sets the level
for when re-synchronization takes place.
Description
Reserved, write as 0.
The TX DACs data source is selected by DAC_SRC according
to:
0: Normal operation (from modulator).
1: The DAC_I_O and DAC_Q_O override values below.
2: From ADC
3: I/Q after digital down-mixing and channel filtering.
4: Full-spectrum White Noise (from PRNG.)
5: RX signal magnitude / frequency filtered (from demodulator).
6: RSSI / RX frequency offset estimation.
7: HSSD module.
This feature will often require the DACs to be manually turned on
in
I-branch DAC override value.
Q-branch DAC override value.
MANOVR
and
PAMTST.ATESTMOD_MODE
®
CC2400
Page 62 of 73
=4.