QM55003

Mid-Band Low-Band NB_IoT TxM

QM55003 Data Sheet REV C | Subject to change without notice

13 of 25

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PRELIMINARY

Table 1: RFFE MIPI Register Map (1 of 4)

Register Details

This section displays each register in table form. Table headers described here:

TRIG.

– Indicates whether the Write Command can be triggered. The value in the Trig. Column indicates which trigger

causes the Bit Field to be loaded from t

he shadow register. “T012” means that any or all triggers will cause a load from

shadow register.

Register 0 (0x00)

– PA_CTRL0

BIT(S)

FIELD NAME

DEFAULT

DESCRIPTION

R/W

B/

G

TRIG.

7:6

Reserved[1:0]

0b00

This is a read-only bit that is reserved and yields a

value of 0 at readback

R

No

No

5:3

PA_BAND[2:0]

0b000

PA Band

000: off

001: AUX2

010: AUX1

011: RX_HB

100: LB_TX

101: Reserved

110: MB_TX

111: RX_LB

R/W

T012

2

TX_EN[2]

0b0

Transmit Enable

0 = Transmit mode disabled

1 = Transmit mode enabled

Set this bit to 1 to turn on the module’s PA for LB or

MB transmit or to use one of the four TRX ports in

transmit mode.

R/W

T012

1

PA_MODE[1]

0b0

PA Power Control Mode

0 = HPM

1 = LPM

R/W

No

0

Reserved[0]

0b0

This is a read-only bit that is reserved and yields a

value of 0 at readback.

R/W

No

Register 1 (0x01)

– PA_CTRL1

BIT(S)

FIELD NAME

DEFAULT

DESCRIPTION

R/W

B/G

TRIG.

7:4

PA_BIAS2[3:0]

0b0000

PA Bias

– power stage

R/W

No

T012

3:0

PA_BIAS1[3:0]

0b0000

PA Bias

– driver stage

R/W

No

T012

Register 2 (0x02)

– PA_CTRL2

BIT(S)

FIELD NAME

DEFAULT

DESCRIPTION

R/W

B/G

TRIG.

7:4

Reserved[3:0]

0b0000

These are a read-only bits that are reserved and yield

a value of 0 at readback.

R/W

No

No

3:0

PA_TUNE[3:0]

0b0000

PA Tuning Cap

R/W

No

T012