Datasheet

SLES084C − August 2007 TVP5146

2.12 VBUS Register Definitions

2.12.1 VDP Closed Caption Data Register

Subaddress 80 051Ch–80 051Fh

Read only

Subaddress 7 6 5 4 3 2 1 0

80 051Ch Closed caption field 1 byte 1

80 051Dh Closed caption field 1 byte 2

80 051Eh Closed caption field 2 byte 1

80 051Fh Closed caption field 2 byte 2

These registers contain the closed caption data arranged in bytes per field.

2.12.2 VDP WSS Data Register

Subaddress 80 0520h–80 0526h

WSS NTSC (CGMS):

Read only

Subaddress 7 6 5 4 3 2 1 0 Byte

80 0520h b5 b4 b3 b2 b1 b0 WSS field 1 byte 1

80 0521h b13 b12 b11 b10 b9 b8 b7 b6 WSS field 1 byte 2

80 0522h b19 b18 b17 b16 b15 b14 WSS field 1 byte 3

80 0523h Reserved

80 0524h b5 b4 b3 b2 b1 b0 WSS field 2 byte 1

80 0525h b13 b12 b11 b10 b9 b8 b7 b6 WSS field 2 byte 2

80 0526h b19 b18 b17 b16 b15 b14 WSS field 2 byte 3

These registers contain the wide screen signaling data for NTSC.

Bits 0–1 represent word 0, aspect ratio.

Bits 2–5 represent word 1, header code for word 2.

Bits 6–13 represent word 2, copy control.

Bits 14–19 represent word 3, CRC.

PAL/SECAM:

Read only

Subaddress 7 6 5 4 3 2 1 0 Byte

80 0520h b7 b6 b5 b4 b3 b2 b1 b0 WSS field 1 byte 1

80 0521h b13 b12 b11 b10 b9 b8 WSS field 1 byte 2

80 0522h Reserved

80 0523h Reserved

80 0524h b7 b6 b5 b4 b3 b2 b1 b0 WSS field 2 byte 1

80 0525h b13 b12 b11 b10 b9 b8 WSS field 2 byte 2

80 0526h Reserved

PAL/SECAM:

Bits 0–3 represent group 1, aspect ratio.

Bits 4–7 represent group 2, enhanced services.

Bits 8–10 represent group 3, subtitles.

Bits 11–13 represent group 4, others.