Rainbow Electronics RF12B - Manual (Page 24)

RF12B
in the AFC Control Command (bit 0).
TX REGISTER BUFFERED DATA TRANSMISSION
In this operating mode (enabled by bit el, in the Configuration Control Command) the TX data is clocked
into one of the two 8-bit data registers. The transmitter starts to send out the data from the first register
(with the given bit rate) when bit et is set with the Power Management Command. The initial value of the
data registers (AAh) can be used to generate preamble. During this mode, the SDO pin can be monitored
to check whether the register is ready (SDO is high) to receive the next byte from the microcontroller.
TX register simplified block diagram (before transmit)
TX register simplified block diagram (during transmit)
Typical TX register usage
Tel: +86-755-86096587 Fax: +86-755-86096602 E-mail: [email protected] http://www.hoperf.com