STA400A datasheet(87/117 Pages) STMICROELECTRONICS

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STA400A

signal sat1_ber_done which is comprised in the interrupt vector (addr. 0x0350)

Sat2Ber_F

- Satellite 2 Channel Bit Error Rate

The Sat2 channel error rate states the number of channel symbol errors which where determined within one

PRC packet by reencoding of the Viterbi-decoded Sat2 data stream. A new measurement is indicated by the

signal sat2_ber_done which is comprised in the interrupt vector (addr. 0x0350)

ForceCorr_F

- FEC Control Register

This Register is used to force the correction value for PRC preamble (System value 0x1D) at RS input

RS_Ctrl_F

- RS Decoder Configuration

b3-b2 :

RS Error count conf

‘00’= Count 16 RS Blocks (8 PRCs);

‘01’= Count 64 RS Blocks (32 PRCs);

‘10’= Count 256 RS Blocks (128 PRCs);

‘11’= Count 1024 RS Blocks (512 PRCs).

b1 :

terr_csat_comb

‘1’= Enable Terrestrial-Satellite Combining

‘0’= Disable Terrestrial-Satellite Combining

b0 :

force_corr_en

‘1’= enable forced correction of PRC preamble;

‘0’= disable forced correction of PRC preamble

RS_Cnt_F

- RS Decoder Error Count Control

This register controls the RS Error Counter. After reset the counter is disabled. To start BER measurement a

value must be written in this register. When written, this register generates a one clock cycle trigger signal for

Type:

MultiBytes - R

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

Sat1Ber2_F

0325

11-8

Sat1Ber1_F

0324

7-0

Type:

MultiBytes - R

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

Sat2Ber2_F

0329

11-8

Sat2Ber1_F

0328

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

ForceCorr_F

0330

7-0

Type:

SingleByte - R/W

Word Length:

Byte Name

Address (Hex)

Bit Map

Reset Value (Hex)

RS_Ctrl_F

0331

3-0

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