Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
Table 84 I-port output signal definitions; global set 84H[3:0]
X = don’t care.
CONTROL BITS D3 TO D0
I-PORT OUTPUT SIGNAL DEFINITIONS
IDV1
IDV0
IDH1
IDH0
IGPH is a H-gate signal, framing the scaler output
X
X
X
X
0
0
0
1
IGPH is an extended H-gate (framing H-gate during scaler output and scaler
input H-reference outside the scaler window)
IGPH is a horizontal trigger pulse, on active going edge of H-gate
IGPH is a horizontal trigger pulse, on active going edge of extended H-gate
IGPV is a V-gate signal, framing scaled output lines
X
X
0
0
1
1
X
X
0
1
0
1
1
1
0
1
X
X
X
X
X
X
X
X
IGPV is the reference signal from scaler input
IGPV is a vertical trigger pulse, derived from V-gate
IGPV is a vertical trigger pulse derived from input V-reference
Table 85 I-port signal definitions; global set 84H[5:4] and 86H[4]
CONTROL BITS
IDG11
I-PORT SIGNAL DEFINITIONS
86H[4]
IDG12
84H[5:4]
IDG10
IGP1 is output field ID, as defined by OFIDC[90H[6]]
IGP1 is A/B task flag, as defined by CONLH[90H[7]]
IGP1 is sliced data flag, framing the sliced VBI-data at the I-port
IGP1 is set to logic 0 (default polarity)
0
0
0
0
1
1
1
0
0
1
1
0
0
1
0
1
0
1
0
1
0
IGP1 is the output FIFO almost filled flag
IGP1 is the output FIFO overflow flag
IGP1 is the output FIFO almost full flag, level to be programmed in
subaddress 86H
IGP1 is the output FIFO almost empty flag, level to be programmed in
subaddress 86H
1
1
1
2000 Mar 15
112
NXP [ NXP ]
