Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
15.5.5 SUBADDRESSES 90H AND C0H
Table 96 Task handling control; register set A (90H[2:0]) and B (C0H[2:0])
X = don’t care.
CONTROL BITS D2 TO D0
EVENT HANDLER CONTROL
RPTSK
STRC1
STRC0
Event handler triggers immediately after finishing a task
Event handler triggers with next V-sync
X
X
X
X
0
0
0
1
1
X
X
0
1
0
1
X
X
Event handler triggers with field ID = 0
Event handler triggers with field ID = 1
If active task is finished, handling is taken over by the next task
Active task is repeated once, before handling is taken over by the next task
1
Table 97 Task handling control; register set A (90H[5:3]) and B (C0H[5:3])
CONTROL BITS D5 TO D3
EVENT HANDLER CONTROL
FSKP2
FSKP1
FSKP0
Active task is carried out directly
0
0
0
0
0
1
1 field is skipped before active task is carried out
... fields are skipped before active task is carried out
6 fields are skipped before active task is carried out
7 fields are skipped before active task is carried out
...
1
...
1
...
0
1
1
1
Table 98 Task handling control; register set A (90H[7:6]) and B (C0H[7:6])
X = don’t care.
CONTROL BITS D7 AND D6
EVENT HANDLER CONTROL
CONLH
OFIDC
Output field ID is field ID from scaler input
X
X
0
1
Output field ID is task status flag, which changes every time an selected task
is activated (not synchronized to input field ID)
Scaler SAV/EAV byte bit D7 and task flag = 1, default
0
1
X
X
Scaler SAV/EAV byte bit D7 and task flag = 0
2000 Mar 15
117
NXP [ NXP ]
