NXP Semiconductors
UM10858
PN7462 family HW user manual
UM10858
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User manual
COMPANY PUBLIC
Rev. 1.4 — 14 May 2018
314514
177 of 345
Table 219. CLIF_SIGPRO_RM_CONFIG1_REG register (address 00B4h)
* = reset value
Bit
Symbol
Access
Value
Description
31:25
RESERVED
R
0
Reserved
24
DYNAMIC_BPSK_T
H_ENABLE
R/W
0-1*
If set to 1 the threshold for BPSK demodulation is
dynamically adapted while reception.
Note: This setting is only valid in BPSK modes – otherwise it
is ignored
23:21
BPSK_IQ_MODE
R/W
000*-111
Defines strategy of signal processing regarding I and Q
channel
000*
Both channels (I and Q) are used for signal processing
001
Use only I channel
010
Use only Q channel
011
Reserved
100
Use the strongest channel
101
Use the first channel
110-111
Reserved
20
BPSK_FILT6
R/W
0*-1
This bit changes the Spike filter for the Phase shift detection
from order 5 to order 6 (default = order 6).
19
RESYNC_EQ_ON
R/W
0-1*
Resynchronization during the SOF for an equal correlation
value is done (default = activated).
18
CORR_RESET_ON
R/W
0-1*
The correlator is reset at a reset (default = activated).
17
VALID_FILT_OFF
R/W
0*-1
Disables a special filter in BPSK mode. If set to 0, the
correlation of 0110 is filtered with the correlation of 1110 and
0111. Otherwise the demodulation is done using the
correlation with 0110
16
DATA_BEFORE_MI
N
R/W
0*-1
Data is received even before the first minimum at the SOF
(default: = deactivated).
15:12
MIN_LEVEL
R/W
0*-Fh
Defines the MinLevel of the reception
Note
: The MinLevel should be higher than the noise level in
the system
Note
: Used for BPSK and Manchester with Subcarrier
11:8
MIN_LEVEL_P
R/W
0* - Fh
Defines the MinLevel for the phase shift detector unit
7
USE_SMALL_EVAL
R/W
0* - 1
Defines the length of the even period for the correlator for
Manchester subcarrier communication types
6:5
COLL_LEVEL
R/W
00* - 11
Defines how strong a signal must be to be interpreted as a
collision for Manchester subcarrier communication types.
00*
>12.5 %
01
>25 %
10
>50 %
11
No Collison
4
PRE_FILTER
R/W
0* - 1
If set to 1 four samples are combined to one data. (average)
3
RECT_FILTER
R/W
0* - 1
If set to one, the ADC-values are changed to a more
rectangular wave shape.