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Functional Description
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SLES140A—March 2007TVP5147M1PFP
CC F1: CC field 1 data available unmasked
0 = Not available
1 = Available
Line: Line number interrupt unmasked
0 = Not available
1 = Available
The host interrupt raw status 0 and 1 registers represent the interrupt status without applying mask bits.
2.11.84 Interrupt Raw Status 1 Register
Subaddress F1h
Read only
7 6 5 4 3 2 1 0
Reserved H/V lock Macrovision status changed Standard changed FIFO full
H/V lock: unmasked
0 = H/V lock status unchanged
1 = H/V lock status changed
Macrovision status changed: unmasked
0 = Macrovision status unchanged
1 = Macrovision status changed
Standard changed: unmasked
0 = Video standard unchanged
1 = Video standard changed
FIFO full: unmasked
0 = FIFO not full
1 = FIFO was full during write to FIFO
The FIFO full error flag is set when the current line of VBI data cannot enter the FIFO. For example, if the FIFO
has only 10 bytes left and teletext is the current VBI line, then the FIFO full error flag is set, but no data is written
because the entire teletext line does not fit. However, if the next VBI line is closed caption requiring only 2 bytes
of data plus the header, then this goes into the FIFO even if the full error flag is set.
2.11.85 Interrupt Status 0 Register
Subaddress F2h
Read only
7 6 5 4 3 2 1 0
FIFO THRS TTX WSS VPS VITC CC F2 CC F1 Line
FIFO THRS: FIFO threshold passed, masked
0 = Not passed
1 = Passed
TTX: Teletext data available masked
0 = Not available
1 = Available
WSS: WSS data available masked
0 = Not available
1 = Available