
2000 Mar 15
66
Philips Semiconductors
Preliminary specication
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb lter, VBI-data slicer and high performance scaler
SAA7114H
VBI-raw sample streams are enveloped with
SAV and EAV, like normal video
Decoded VBI-data is transported as Ancillary (ANC)
data, two modes:
– direct decoded VBI-data bytes (8-bit) are directly
placed in the ANC data field, 00H and FFH codes
may appear in data block (violation to CCIR-656)
– recoded VBI-data bytes (8-bit) directly placed in ANC
data field, 00H and FFH codes will be recoded to
even parity codes 03H and FCH to suppress invalid
CCIR-656 codes.
There are no empty cycles in the ancillary code and its
data field. The data codes 00H and FFH are suppressed
(changed to 01H or FEH respectively) in active video
stream, as well as in VBI-raw sample stream (VBI
pass-through). Optionally the number range can be limited
further.
Table 31 Signals dedicated to the image port
SYMBOL
PIN
I/O
DESCRIPTION
BIT
IPD7 to
IPD0
54 to 57
and
59 to 62
I/O I-port data
ICODE[93H[7]], ISWP[1:0]85H[7:6]
and IPE[1:0]87[1:0]
ICLK
45
I/O continuous reference clock at image port, can
be input or output, as output decoder LLC or
XCLK from X-port
ICKS[1:0]80H[1:0] and
IPE[1:0]87H[1:0]
IDQ
46
O
data valid ag at image port, qualier, with
programmable polarity;
secondary function: gated clock
ICKS2[80H[2]], IDQP[85H[0]] and
IPE[1:0]87H[1:0]
IGPH
53
O
horizontal reference output signal, copy of the
H-gate signal of the scaler, with programmable
polarity; alternative functions: HRESET pulse
IDH[1:0]84H[1:0], IRHP[85H[1]] and
IPE[1:0]87H[1:0]
IGPV
52
O
vertical reference output signal, copy of the
V-gate signal of the scaler, with programmable
polarity;
alternative functions: VRESET pulse
IDV[1:0]84H[3:2], IRVP[85H[2]] and
IPE[1:0]87H[1:0]
IGP1
49
O
general purpose output signal for I-port
IDG12[86H[4]], IDG1[1:0]84H[5:4],
IG1P[85H[3]] and IPE[1:0]87H[1:0]
IGP0
48
O
general purpose output signal for I-port
IDG02[86H[5]], IDG0[1:0]84H[7:6],
IG0P[85H[4]] and IPE[1:0]87H[1:0]
ITRDY
42
I
target ready input signals
ITRI
47
I
port control, switches I-port into 3-state
IPE[1:0]87H[1:0]