GMSK Packet Data Modem and RF Transceiver
CMX990
Special Data0
Bit:
$1D-1E
Read and Write
7
6
6
5
5
4
3
2
2
1
0
7
6
6
5
5
5
4
3
2
2
1
1
0
0
MSB Data
LSB Data
Special Data1
Bit:
$1B-1C
Read and Write
7
4
3
1
0
7
4
3
MSB Data
LSB Data
Main PLL M divider
Bit:
$20-21 Write
7
6
5
0
4
3
2
1
0
7
6
4
3
2
1
0
Main PLL Tx LO
Enable DIV
MSB
LSB
5
Main PLL N divider
$22-23-24
Write
Bit:
7
6
0
5
0
4
0
3
2
1
0
7
6
5
4
3
2
1
6
0
7
6
4
3
2
1
0
Sign
MSB
NSB
LSB
Aux PLL M divider
$25-26 Write
Bit:
7
6
5
4
3
2
1
0
7
5
4
3
2
1
0
Aux PLL
Enable
Tx IF Filter
MSB
LSB
Aux PLL N divider
$27-28 Write
Bit:
7
6
0
5
4
3
2
1
0
7
6
5
4
3
2
1
0
TX IF
DIV
MSB
LSB
ã 2004 CML Microsystems Plc
50
D/990/1