=== Firmware V2.02.15 (BETA) ===
==== Si4030 Register Descriptions ====
<pre>
(T)X RegistersAdd R/W Function/Desc              |                      DATA BIT                       |  POR                                   | 7      6      5      4      3      2      1     0   |  Default 75 R/W Frequency Band Select        ---    sbsel  hbsel  fb[4]  fb[3]  fb[2]  fb[1] fb[0]  75h 76 R/W Nominal Carrier Frequency 1  fc[15] fc[14] fc[13] fc[12] fc[11] fc[10] fc[9] fc[8]  BBh 77 R/W Nominal Carrier Frequency 0  fc[7]  fc[6]  fc[5]  fc[4]  fc[3]  fc[2]  fc[1] fc[0]  80h</pre>
 
==== (T)X Registers ====
<pre>
0x0: 0x08
0x1: 0x06