RFM22
Register 17h. Wake-Up Timer Value 1
Bit
D7
D6
D5
D4
D3
D2
D1
D0
wtm[15:8]
R
Name
Type
Reset value = xxxxxxxx
Bit
Name
wtm[15:8]
Function
7：0
Wake Up Timer Current Mantissa (M) Value*.
*Note: The period of the wake-up timer can be calculated as TWUT = (32 x M x 2R-D ) / 32.768 ms.
Register 18h. Wake-Up Timer Value 2
Bit
D7
D6
D5
D4
D3
D2
D1
D0
wtm[7:0]
R
Name
Type
Reset value = xxxxxxxx
Bit
Name
wtm[7:0]
Function
7：0
Wake Up Timer Current Mantissa (M) Value*.
*Note: The period of the wake-up timer can be calculated as TWUT = (32 x M x 2R-D ) / 32.768 ms.
Register 19h. Low-Duty Cycle Mode Duration
Bit
D7
D6
D5
D4
D3
D2
D1
D0
ldc [7:0]
R/W
Name
Type
Reset value = 00000000
Bit
Name
ldc [7:0]
Function
7：0
Low-Duty Cycle Mode Duration (LDC)*.
*Note: The period of the low-duty cycle ON time can be calculated as TLDC_ON = (32 x LDC x 2R-D ) / 32.768 ms. R and D
values are the same as in the wake-up timer setting in "Register 14h. Wake-Up Timer Period 1".
93
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