RFM22
Register 14h. Wake-Up Timer Period 1
Bit
D7
D6
D5
D4
D3
D2
D1
D0
Reserved
R/w
wtr[3:0]
R/w
wtd[1:0]
R/w
Name
Type
Reset value = xxx00000
Bit
Name
Function
7：6
5：3
1：0
Reserved
wtr[3:0]
wtd[1:0]
Reserved.
Wake Up Timer Exponent (R) Value*.
Wake Up Timer Exponent (D) Value*.
*Note: The period of the wake-up timer can be calculated as TWUT = (32 x M x 2R-D ) / 32.768 ms.
Register 15h. Wake-Up Timer Period 2
Bit
D7
D6
D5
D4
D3
D2
D1
D0
wtm[15:8]
R/W
Name
Type
Reset value = 00000000
Bit
Name
wtm[15:8]
Function
7：0
Wake Up Timer 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 16h. Wake-Up Timer Period 3
Bit
D7
D6
D5
D4
D3
D2
D1
D0
wtm[7:0]
R/W
Name
Type
Reset value = 00000001
Bit
Name
wtm[7:0]
Function
7：0
Wake Up Timer 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.
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