ML7344J datasheet(27/151 Pages) ETC2

27 / 151 page

FEDL7344C/E/J-04

ML7344C/E/J

27/151

●LSI state transition control

●LSI State transition instruction

State can be controlled from MCU by setting registers below.

State transition command

Instruction

TX_ON

SET_TRX([RF_STATUS:B0 0x0B(3-0)])=0b1001

RX_ON

SET_TRX([RF_STATUS:B0 0x0B(3-0)])=0b0110

TRX_OFF

SET_TRX([RF_STATUS:B0 0x0B(3-0)])=0b1000

Force_TRX_OFF

SET_TRX([RF_STATUS:B0 0x0B(3-0)])=0b0011

SLEEP_EN

SLEEP_EN([SLEEP/WU_SET:B0 0x2D(0)])=0b1

VCO_CAL_EN

VCO_CAL_START([VCO_CAL_START:B0 0x6F(0)])=0b1

State can be changed without command from MCU. If one of the following condition is met, state is changed

automatically according to the following table. In order to enable these functions, the following registers must

be programmed.

Function

Control bit name

Automatic TX_ON after FIFO write completion (AUTO_TX

)

AUTO_TX_EN([RF_STATUS_CTRL:B0 0x0A(4)])

Automatic TX_ON during FIFO write (FAST_TX)

FAST_TX_EN([RF_STATUS_CTRL:B0 0x0A(5)])

RF state setting after packet transmission completion

TXDONE_MODE[1:0]([RF_STATUS_CTRL:B0 0x0A(1-0)])

RF state setting after packet reception completion

RXDONE_MODE[1:0]([RF_STATUS_CTRL:B0 0x0A(3-2)])

Automatic RX_ON/TX_ON by Wake-up timer

WAKEUP_MODE([SLEEP/WU_SET:B0 0x2D(6)])

WAKEUP_EN([SLEEP/WU_SET:B0 0x2D(4)])

Automatic VCO calibration after exit from SLEEP

AUTO_VCOCAL_EN([VCO_CAL_START:B0 0x6F(4)])

Automatic SLEEP by timer

WU_DURATION_EN([SLEEP/WU_SET:B0 0x2D(5)])

Automatic SLEEP by high speed carrier checking mode

FAST_DET_MODE_EN([CCA_CTRL:B0 0x39(3)])

Force_TRX_OFF after PLL unlock detection during TX

PLL_LD_EN([PLL_LOCK_DETECT:B1 0x0B(7)])

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