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CC2500
SWRS040C
Page 77 of 89
0x1D: AGCCTRL0 – AGC Control
Bit
Field Name
Reset
R/W
Description
7:6
HYST_LEVEL[1:0]
2 (10)
R/W
Sets the level of hysteresis on the magnitude deviation
(internal AGC signal that determines gain changes).
Setting
Description
0 (00)
No hysteresis, small symmetric dead zone,
high gain
1 (01)
Low hysteresis, small asymmetric dead zone,
medium gain
2 (10)
Medium hysteresis, medium asymmetric dead
zone, medium gain
3 (11)
Large hysteresis, large asymmetric dead
zone, low gain
5:4
WAIT_TIME[1:0]
1 (01)
R/W
Sets the number of channel filter samples from a gain
adjustment has been made until the AGC algorithm starts
accumulating new samples.
Setting
Channel filter samples
0 (00)
8
1 (01)
16
2 (10)
24
3 (11)
32
3:2
AGC_FREEZE[1:0]
0 (00)
R/W
Controls when the AGC gain should be frozen.
Setting
Function
0 (00)
Normal operation. Always adjust gain when
required.
1 (01)
The gain setting is frozen when a sync word has
been found.
2 (10)
Manually freezes the analog gain setting and
continue to adjust the digital gain.
3 (11)
Manually freezes both the analog and the digital
gain settings. Used for manually overriding the
gain.
1:0
FILTER_LENGTH[1:0]
1 (01)
R/W
Sets the averaging length for the amplitude from the channel
filter. Sets the OOK decision boundary for OOK reception.
Setting
Channel filter samples
OOK decision
0 (00)
8
4 dB
1 (01)
16
8 dB
2 (10)
32
12 dB
3 (11)
64
16 dB
0x1E: WOREVT1 – High Byte Event0 Timeout
Bit
Field Name
Reset
R/W
Description
7:0
EVENT0[15:8]
135 (0x87)
R/W
High byte of Event 0 timeout register
RES
WOR
XOSC
Event
EVENT
f
t
_
5
0
2
0
750
Summary of Contents for CC2500
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