Digital PMR Radio Processor
CMX7131/CMX7141
LICH Data:
The TxData block is interpreted in the following manner:
TxData 15
14
13
12
11
LICH0-6
10
9
8
7
6
5
1
4
0
3
0
2
0
1
0
0
1
0
1
2
3
4
0
Count
Not used
Not used
Not used
Not used
6
5
4
3
2
1
0
RF
Channel
Type
Functional
Channel
Type
LICH
Option
Dir
RF
RF Channel Type
reserved
reserved
Direct Communication
reserved
F
O
Mode
Audio
Communication, non-
superframe
Payload content
FACCH1 / FACCH1
reserved
reserved
reserved
FACCH2
reserved
reserved
UDCH1
FACCH1 / FACCH1
FACCH1 / TCH
TCH / FACCH1
TCH / TCH
reserved
reserved
reserved
reserved
00
01
10
11
00
00
00
00
01
01
01
01
10
10
10
10
11
11
11
11
00
01
10
11
00
01
10
11
00
01
10
11
00
01
10
11
SACCH follows
Data Communication
D
0
1
Direction
Uplink or MS - MS
Downlink
Audio
Communication,
superframe
SACCH follows
Data Burst
Examples:
Start frame:
TCH frame:
Clearing frame:
10 00 00 0
10 10 11 0
10 00 00 0
Audio with FACCH1 (single frame)
Audio with TCH payload (super-frame)
Audio with FACCH1 (single frame)
LICH and SACCH Data:
The TxData/RxData block is interpreted in the following manner:
TxData
RxData
15
0
14
13
12
11
10
9
8
7
6
0
5
1
4
1
3
0
2
1
1
0
0
1
0
1
LICH 0-6
Count
SACCH 0-7
SACCH 8-15
SACCH
24-25
2
SACCH 16-23
0
0
0
0
0
3
4
Not used
Not used
TCH Payload Data:
See Table 15 and User Manual section 8.1.11.
2014 CML Microsystems Plc
Page 50
D/7141_FI-3.x/6
CMLMICRO [ CML MICROCIRCUITS ]
