Description
1.0
2018-6-20
Preview
1.1
2018-11-16 Added Schematics (section 11)
Added SMS support using external microcontroller information,
2.0
2019-04-23
Revised text
Appendix A
Information added for frame structure (CCH +
2.1
2019-05-14
DCH
SMS data)
Section 9.1 - Added info
Features
- 6
3. Pin Configuration8
4. RF Transceiver 17
4.1. Transmitter 17
4.2. Receiver 18
4.3. PLL&VCO 18
4.4. RC Oscillator18
4.5. RF Front-end circuit19
5. Baseband Core 19
5.1. Overview19
5.2. Modem 19
5.3. DFR Protocol Stack20
5.3.1. DFR Transmitter Signal Flow 21
5.3.2. DFR Receiver Signal Flow 22
6. Programmable Function Keys23
7. Control Command Protocol 25
8. Interface and Timing Sequence25
8.1. Power Supply 25
8.2. Reset and Power Up Timing 26
8.2.1. Baseband Core Operating F.