Rainbow Electronics RF12B - Manual (Page 22)

RF12B
bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR
1 1 0 0 1 0 0 r0 d6 d5 d4 d3 d2 d1 d0 en C80Eh
With this command, Low Duty-Cycle operation can be set in order to decrease the average power
consumption in receiver mode. The time cycle is determined by the Wake-Up Timer Command. The
Duty-Cycle can be calculated by using (d6 to d0) and M. (M is parameter in a Wake-Up Timer
Command.)
Duty-Cycle= (D * 2 +1) / M *100%
Bit 0 (en): Enables the Low Duty-Cycle Mode. Wake-up timer interrupt not generated in this mode.
Note: In this operation mode, bit er must be cleared and bit ew must be set in the Power Management
Command .
Application proposal for LPDM(Low Power Duty-cycle Mode) Receivers:
Bit 0 (en): Enables the Low Duty-Cycle Mode. Wake-up timer interrupt not generated in this mode.
Note: In this operation mode, bit er must be cleared and bit ew must be set in the Power Management
Command.
16. Low Battery Detector and Microcontroller Clock Divider Command
bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 POR
1 1 0 0 0 0 0 0 d2 d1 d0 0 v3 v2 v1 v0 C000h
The 5 bit parameter (v4 to v0) represents the value V, which defines the threshold voltage V
lb
of the
detector:
V = 2.2 + V * 0.1 [V]
lb
Clock divider configuration:
d2 d1 d0 Clock Output Frequency [ MHz]
0 0 0 1
0 0 1 1.25
0 1 0 1.66
0 1 1 2
1 0 0 2.5
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