STA400A datasheet(92/117 Pages) STMICROELECTRONICS

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STA400A

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TAGCREF

- Terrestrial AGC Reference Level

This register is 13 bits long and is divided into two bytes. The LSB byte is named TAGCREF0, the MSB byte is

named TAGCREF1. It sets the signal level at the terrestrial ADC input.

TAGCINTG

- Terrestrial AGC Integrator

This register is connected to the 8MSB of the internal integrator of the terrestrial AGC loop. It gives an image of

the power level at the terrestrial analog input. The register format is two’s complement.

IF_CTRL

- IF Sampling Control Register

This register selects the external ADC format and controls the average filter of the AGC integrator.

b7:

AVG_OFF

Internal averager circuit disable. ‘1’=Averager disabled; ‘0’=Averager enabled.

b6-b2:

Reserved for Future Use

b1 :

FORMAT

External/Internal ADC code format. ‘1’=Two’s complement; ‘0’=Offset Binary.

b0:Reserved

SELTSTOUT

- Internal Test Bus Selection for each Block

This register selects, for each internal blocks, which signals are connected to the FTESTOUT pins. It must ve

used together with the TSTMUXCTL register (addr 0x040B).

b3-b0:TBD

TSTMUXCTL

- Selection of the Internal Block for Functional Test

This register selects, among 16 test buses from the internal functional blocks, the one to be connected to the

FTESTOUT bus according with the table below. It must ve used together with the SELTSTOUT register (addr

Type:

MultiBytes - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

TAGCREF1

0405

12-8

TAGCREF0

0404

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

TAGCINTG

0406

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

IF_CTRL

0407

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

SELTSTOUT

040A

3-0

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