Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
Table 89 I-port FIFO flag control and arbitration; global set 86H[3:0]
X = don’t care.
CONTROL BITS D3 TO D0
I-PORT FIFO FLAG CONTROL AND ARBITRATION
FFL1
FFL0
FEL1
FEL0
FAE FIFO flag almost empty level
<16 Dwords
X
X
X
X
X
X
X
X
0
0
1
1
0
1
0
1
<8 Dwords
<4 Dwords
0 Dwords
FAF FIFO flag almost full level
≥16 Dwords
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
≥24 Dwords
≥28 Dwords
32 Dwords
Table 90 I-port FIFO flag control and arbitration; global set 86H[7:4]
X = don’t care.
CONTROL BITS D7 TO D4
FUNCTION
VITX1
VITX0
IDG02
IDG12
See subaddress 84H: IDG11 and IDG10
X
X
X
X
X
X
X
X
X
X
0
0
1
See subaddress 84H: IDG01 and IDG00
X
X
1
I-port signal definitions
I-port data output inhibited
0
0
1
1
0
1
0
1
X
X
X
X
X
X
X
X
Only video data are transferred
Only text data are transferred (no EAV, SAV will occur)
Text and video data are transferred, text has priority
2000 Mar 15
114
NXP [ NXP ]
