RFM01 Datasheet, PDF (13/31 Pages) List of Unclassifed Manufacturers – Universal ISM Band FSK Receiver

RFM01
4. Wake-Up Timer Command
bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
1 1 1 r4 r3 r2 r1 r0 m7 m6 m5 m4 m3 m2 m1 m0
The wake-up time period can be calculated by M <m7 : m0> and R <r4 : r0>:
Twake-up = M * 2^R ms
POR
E196h
Software reset: Sending FF00h command to the chip triggers software reset. For more details see the Reset modes section.
5. Low Duty-Cycle Command
bit 15 14 13 12 11 10 9
1100110
876543210
0 d6 d5 d4 d3 d2 d1 d0 en
With this command Low Duty-Cycle operation can be set in order to decrease the average power consumption.
The time cycle is determined by the Wake-Up Timer Command.
The Duty-Cycle is calculated by D <d6 : d0> and M. (M is parameter in a Wake-Up Timer Command.)
D.C.= (D * 2 +1) / M *100%
6. Low Battery Detector and Microcontroller Clock Divider Command
bit 15 14 13 12 11 10 9
1100001
876543210
0 d2 d1 d0 t4 t3 t2 t1 t0
The 5-bit value T of t4-t0 determines the threshold voltage of the threshold voltage Vlb of the detector:
Vlb= 2.25 V + T * 0.1 V
Clock divider configuration:
d2 d1 d0
0
0
0
0
0
1
0
1
0
0
1
1
1
0
0
1
0
1
1
1
0
1
1
1
Clock Output
Frequency [MHz]
1
1.25
1.66
2
2.5
3.33
5
10
POR
CC0Eh
POR
C200h
13