mrf89xa Microchip Technology Inc., mrf89xa Datasheet - Page 96

• Manufacturer Part Number: mrf89xa
• Description: Ultra-low Power, Integrated Ism Band Sub-ghz Transceiver
• Manufacturer: Microchip Technology Inc.

To make the MRF89XA device enter into Sleep mode,
certain control register values must be initialized. The
sequence to program the control registers for entering
into Sleep and Wake-up modes is as follows:
For Sleep mode:
1.
2.
3.
4.
EXAMPLE 3-1:
The MRF89XA device can wake up from any interrupt
activity.
For Wake-up mode perform any one the following task:
• Enter in TX/RX mode
• Enable CLKOUT
• Set the INT pin
EXAMPLE 3-2:
DS70622B-page 96
MRF89XA
Check the IRQ bit status
Handle Interrupts
Configure the GCONREG register
Set/Reset CLKOUT in
register
Set CMOD<2:0> (GCONREG<2:0>) = 0
Set CMOD<2:0> (GCONREG<2:0>) = 1
TO PUT THE MRF89XA
INTO SLEEP MODE
TO WAKE THE MRF89XA
FROM SLEEP MODE
the
CLKOUTREG
Preliminary
3.13.1
The registers associated with power-saving modes
are:
• GCONREG (Register 2-1)
• DMODREG (Register 2-2)
• FDEVREG (Register 2-3)
• BRSREG (Register 2-4)
• FTXRXIREG (Register 2-14)
• FTPRIREG (Register 2-15)
• CLKOUTREG (Register 2-28)
POWER-SAVING MODE
REGISTERS
© 2010 Microchip Technology Inc.