Texas Instruments TRF7960 Manual page 23

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6.4.1 Control Registers – Main Configuration Registers
Table 6-11 describes the Chip Status Control register. This register controls the power mode, RF on or off,
and AM or PM. The register default is 0x01 and is reset at EN = L or POR = H.
BIT BIT NAME FUNCTION
1 = Standby mode
B7 stby
0 = Active mode
1 = Received subcarrier signal (decoders
bypassed)
B6 direct
0 = Received decoded signal from selected
decoder
1 = RF output active
B5 rf_on
0 = RF output not active
1 = Half output power
B4 rf_pwr
0 = Full output power
1 = RX_IN2
B3 pm_on
0 = RX_IN1
B2 Reserved
1 = Receiver enable for external field
B1 rec_on
measurement
1 = 5-V operation (V
B0 vrs5_3
0 = 3-V operation (V
Copyright © 2006–2017, Texas Instruments Incorporated
Table 6-11. Chip Status Control Register (Address = 00h)
)
IN
)
IN
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SLOU186G – AUGUST 2006 – REVISED MAY 2017
COMMENTS
Standby mode keeps regulators and oscillator running when
en_rec = L and en_tx = L.
The modulation control is direct through MOD input. The receiver
subcarrier signal is on I/0_6.
When B5 = 1, the RF field is active.
1 = RF driver at 8 Ω
0 = RF driver at 4 Ω
1 = Selects PM signal input
0 = Selects AM signal input
Receiver and oscillator are enabled; intended for external field
measurement.
Selects the V range: 5 V (4.3 V to 5 V) or 3 V (2.7 V to
DD_RF
3.4 V)
TRF7960 TRF7961
TRF7960, TRF7961
Detailed Description 23