Rainbow Electronics RF12 - Manual (Page 13)

RF12
Timing Diagram
Control Commands
Control Command Related Parameters/Functions
Related control
bits
1
Configuration Setting
Command
Frequency band, crystal oscillator load
capacitance, baseband filter bandwidth, etc.
el, ef, b1 to b0,
x3 to x0
2
Power Management
Command
Receiver/Transmitter mode change,
synthesizer, xtal osc, PA, wake-up timer, clock
output can be enabled here
er, ebb, et, es,
ex, eb, ew, dc
3
Frequency Setting
Command
Data frequency of the local oscillator/carrier
signal
f11 to f0
4 Data Rate Command Bit rate cs, r6 to r0
5 Receiver Control Command
Function of pin 20, Valid Data Indicator,
baseband bw, LNA gain, digital RSSI threshold
p20, d1 to d0, i2
to i0, g1 to g0,
r2 to r0
6 Data Filter Command Data filter type, clock recovery parameters
al, ml, s1 to s0,
f2 to f0
7
FIFO and Reset Mode
Command
Data FIFO IT level, FIFO start control, FIFO
enable and FIFO fill enable
f3 to f0, s1 to s0,
ff, fe
8
Receiver FIFO Read
Command
RX FIFO can be read with this command
9 AFC Command AFC parameters
a1 to a0, rl1 to
rl0, st, fi, oe, en
10
TX Configuration Control
Command
Modulation parameters, output power, ea
mp, m3 to m0,
p2 to p0
11
Transmitter Register Write
Command
TX data register can be written with this
command
t7 to t0
12 Wake-Up Timer Command Wake-up time period
r4 to r0, m7 to
m0
13 Low Duty-Cycle Command Enable low duty-cycle mode. Set duty-cycle. d6 to d0, en
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