STV2310 datasheet(47/112 Pages) STMICROELECTRONICS

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STV2310

Functional Description

UDW Coding for VPS

In Video Programming Systems (VPS), a nibble split algorithm is applied. In all bytes, bit 6 is the

even parity check of bits 5 to 0. Bit 7 is the complement of bit 6.

The result of the VPS sliced information is providing 12 bytes of data, which are generated in the

following order:

● VPUD00: This byte provides the LSB contents of VPS byte 5.

● VPUD01: This byte provides the MSB contents of VPS byte 5.

SD[1:0]Sound bits

RR[1:0]R-Rating bits for flagging material not suitable for children.

RX[3:0]Reserved bits for future applications. Presently not defined.

● VPUD10: This byte provides the LSB contents of VPS byte 11.

● VPUD11: This byte provides the MSB contents of VPS byte 11.

ID[1:0]Identification of the address for this VPS line.

ADT[4:0]Announced day of transmission.

AMT[3]Announced month of transmission.

● VPUD20: This byte provides the LSB contents of VPS byte 12.

● VPUD21: This byte provides the MSB contents of VPS byte 12.

AMT[2:0]Announced month of transmission.

ASH[4]Announced start hour.

● VPUD30: This byte provides the LSB contents of VPS byte 13.

Table 19: UDW Coding for VPS

ADF

DID

SDID

VPUD

bit

432

RX3RX2

RX1RX0

bit

432

SD1

SD0

RR1

RR0

bit

432

ADT2

ADT1

ADT0

AMT3

bit

432

ID1

ID0

ADT4

ADT3

bit

432

ASH3

ASH2

ASH1

ASH0

bit

432

AMT2

AMT1

AMT0

ASH4

bit

432

ASM1

ASM0

NC3

NC2

STV2310 数据表(PDF) 47 Page - STMicroelectronics

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