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MDEV-868-PRC bảng dữ liệu(PDF) 25 Page - Linx Technologies

tên linh kiện MDEV-868-PRC
Giải thích chi tiết về linh kiện  868MHz HumPRC??Series Remote Control Transceiver Castellation Interface, External Antenna Connection
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MDEV-868-PRC bảng dữ liệu(HTML) 25 Page - Linx Technologies

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CRCERRS - CRC Error Count
Volatile Address = 0x40
The value in the CRCERRS register is incremented each time a packet with
a valid header is received that fails the CRC check on the payload. This
check applies only to unencrypted packets. Overflows are ignored. Writing
0x00 to this register initializes the count. Figure 31 shows the command
and response.
HOPTABLE - Channel Hop Table
Volatile Address = 0x4B; Non-Volatile Address = 0x00
The module supports 6 different hop sequences with minimal correlation.
The sequence is set by the value in the HOPTABLE register. Changing the
hop sequence changes the band utilization, much the same way that a
channel does for a non-hopping transmitter. The hop table selection must
match between the transmitter and receiver. Valid values are 0-5. The
default value of 0xFF must be changed before communication can occur.
This is normally done by the Join process. Figure 32 shows the command
and response.
Figure 31: HumPRCTM Series CRC Error Count Command and Response
Figure 32: HumPRCTM Series Channel Hop Table Command and Response
HumPRCTM Series CRC Error Count
Read Command
Read Response
Header
Size
Escape
Address
ACK
Address
Value
0xFF
0x02
0xFE
0x40
0x06
0x40
V
Write Command
Header
Size
Address
Value
0xFF
0x02
0x40
V
HumPRCTM Series Channel Hop Table
Read Command
Read Response
Header
Size
Escape
Address
ACK
Address
Value
0xFF
0x02
0xFE
0x4B
0x00
0x06
0x4B
0x00
V
Write Command
Header
Size
Address
Value
0xFF
0x02
0x4B
0x00
V
HumPRCTM Series RF Channels
Channel Number
Frequency (MHz)
Channel Number
Frequency (MHz)
0
863.05
35
866.55
1
863.15
36
866.65
2
863.25
37
866.75
3
863.35
38
866.85
4
863.45
39
866.95
5
863.55
40
867.05
6
863.65
41
867.15
7
863.75
42
867.25
8
863.85
43
867.35
9
863.95
44
867.45
10
864.05
45
867.55
11
864.15
46
867.65
12
864.25
47
867.75
13
864.35
48
867.85
14
864.45
49
867.95
15
864.55
50
868.05
16
864.65
51
868.15
17
864.75
52
868.25
18
864.85
53
868.35
19
864.95
54
868.45
20
865.05
55
868.55
21
865.15
56
868.65
22
865.25
57
868.75
23
865.35
58
868.85
24
865.45
59
868.95
25
865.55
60
869.05
26
865.65
61
869.15
27
865.75
62
869.25
28
865.85
63
869.35
29
865.95
64
869.45
30
866.05
65
869.55
31
866.15
66
869.65
32
866.25
67
869.75
33
866.35
68
869.85
34
866.45
69
869.95
Figure 33: HumPRCTM Series RF Channels
Figure 33 shows the RF channels used by the HumPRCTM Series. Figure 34
shows the hop sequences referenced by channel number. The default hop
sequence is 0.



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