Users Manual

PN17TR 915MHz Transceiver Module Inventis Technology Pty Ltd
Unit 4, 2 Southridge St. Eastern Creek NSW, Australia Page 14
0x0D: FREQ2 – Frequency Control Word, High Byte
Bit
Field Name
Reset
R/W
Description
7:6
FREQ[23:22]
0 (00)
R
FREQ[23:22] is always 0 (the FREQ2 register is less
than 36 with 26-27 MHz crystal)
5:0
FREQ[21:16]
30 (0x1E)
R/W
FREQ[23:0] is the base frequency for the frequency
synthesiser in increments of f
XOSC
/2
16
.
f
carrier
= f
xosc
/2
16
- FREQ[23:0]
0x0E: FREQ1 – Frequency Control Word, Middle Byte
Bit
Field Name
Reset
R/W
Description
7:0
FREQ[15:8]
196 (0xC4)
R/W
Ref. FREQ2 register
0x0F: FREQ0 – Frequency Control Word, Low Byte
Bit
Field Name
Reset
R/W
Description
7:0
FREQ[7:0]
236 (0xEC)
R/W
Ref. FREQ2 register