XR18W753
SINGLE CHIP 868MHZ TO 956MHZ RF TRANSCEIVER
REV. 1.0.0
The Physical Layer Management Entity (PLME) provides layer management service interfaces through which
layer management functions may be invoked. The figure below shows the different modes of operation that
can be invoked by the PLME.
F IGURE 6. M ODES OF O PERATION
ed_ready=0
plme-ed.request
ED
plme-ed.request
ed_ready=1
cca_ready=1
CCA
plme-cca.request
cca_ready=0
pck_received=1
&
pck_tx_ready=1
pck_received=0
RX_BUSY
one_shot=0
RX_ON
plme-set-trx-state.request
TX_ON
TX_ON
pd-data.request
TX_BUSY
pck_tx_ready=0
sync_found=1
sync_found=0
plme-set-trx-state.request
RX_ON
plme-set-trx-state.request
TRX_OFF
pck_received=1
&
one_shot=1
plme-set-trx-state.request
RX_ON
TRX_OFF
pll_on
plme-set-trx-state.request
TX_ON
plme-set-trx-state.request
FORCE_TRX_OFF
(from every active state)
pll_off
PLME
MODEM_RESET
IDLE
POWER MODES
Automatic transitions
XR18W753 commands
NOTE: Every XR18W753 command is acknowledged by the ‘plme_ready’ interrupt
The modes of operation can be invoked via the MODEM_REQUEST register and the status can be read from
the MODEM_CONF0 and MODEM_CONF1 registers.
10
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