CC2510FX Datasheet, PDF (195/253 Pages) List of Unclassifed Manufacturers – True System-on-Chip with Low Power RF Transceiver and 8051 MCU

CC2510Fx / CC2511Fx
RFIM (0x91) – RF Interrupt Mask
Bit Name
7 _{IM_TXUNF}
Reset R/W
0
R/W
6 _{IM_RXOVF}
0
R/W
5 _{IM_TIMEOUT} 0
R/W
4 _{IM_DONE}
0
R/W
3 _{IM_CS}
2 _{IM_PQT}
1 _{IM_CCA}
0 _{IM_SFD}
0
R/W
0
R/W
0
R/W
0
R/W
Description
TX underflow.
0 Interrupt disabled
1 Interrupt enabled
RX overflow.
0 Interrupt disabled
1 Interrupt enabled
RX timeout, no packet has been received in the programmed period.
0 Interrupt disabled
1 Interrupt enabled
Packet received/transmitted. Also used to detect underflow/overflow
conditions.
0 Interrupt disabled
1 Interrupt enabled
Carrier sense.
0 Interrupt disabled
1 Interrupt enabled
Preamble quality reached.
0 Interrupt disabled
1 Interrupt enabled
Clear Channel Assessment
0 Interrupt disabled
1 Interrupt enabled
Start of Frame Delimiter, sync word detected
0 Interrupt disabled
1 Interrupt enabled
15.4 TX/RX Data Transfer
Transmit data is written to the radio when
writing to the RF Data register, RFD.
Received data is returned when the RFD
register is read.
It is required that the user software uses
FIFO structures in memory to implement
RX and TX FIFOs. In most cases it is
recommended that the transfer of data
between FIFOs in memory and the RF
Data register, RFD, involves the use of
DMA channels with RFD as
source/destination and DMA trigger
RADIO. For description on the usage of
DMA, refer to section 13.2 on page 84.
A simple example of writing TX data to the
radio is shown in Figure 45. This example
does not use DMA, but illustrates some of
the basic principles.
CC2510Fx/CC2511Fx PRELIMINARY Data Sheet (Rev. 1.2) SWRS055A Page 195 of
252