Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
Table 131 Scaler and interface configuration example
I2C-BUS
ADDRESS
(HEX)
EXAMPLE 1 EXAMPLE 2 EXAMPLE 3 EXAMPLE 4
HEX DEC HEX DEC HEX DEC HEX DEC
MAIN FUNCTIONALITY
Global settings
80
task enable, IDQ and back-end clock
definition
10
−
10
−
10
−
10
−
83
84
85
XCLK output phase and X-port output enable 01
IGPH, IGPV, IGP0 and IGP1 output definition A0
−
−
−
01
C5
09
−
−
−
00
A0
10
−
−
−
00
A0
10
−
−
−
signal polarity control and I-port byte
swapping
10
86
FIFO flag thresholds and video/text
arbitration
45
−
40
−
45
−
45
−
87
88
ICLK and IDQ output phase and I-port enable 01
power save control and software reset F0
−
−
01
F0
−
−
01
F0
−
−
01
F0
−
−
Task A: scaler input configuration and output format settings
90
91
92
93
task handling
00
08
10
80
−
−
−
−
00
08
10
40
−
−
−
−
00
18
10
80
−
−
−
−
00
38
10
84
−
−
−
−
scaler input source and format definition
reference signal definition at scaler input
I-port output formats and configuration
Input and output window definition
94
95
96
97
98
99
9A
9B
9C
9D
9E
9F
horizontal input offset (XO)
10
00
D0
02
0A
00
F2
00
D0
02
F0
00
16
−
10
00
C0
02
0A
00
22
01
00
03
20
01
16
−
10
00
D0
02
0A
00
F2
00
60
01
20
01
16
−
10
00
D0
02
0A
00
22
01
C8
00
50
00
16
−
horizontal input (source) window length (XS)
vertical input offset (YO)
720
−
704
−
720
−
720
−
10
−
10
−
10
−
10
−
vertical input (source) window length (YS)
242
−
290
−
242
−
290
−
horizontal output (destination) window length
(XD)
720
−
768
−
352
−
200
−
vertical output (destination) window length
(YD)
240
−
288
−
288
−
80
−
Prefiltering and prescaling
A0
A1
A2
A4
A5
A6
integer prescale (value ‘00’ not allowed)
01
00
00
80
40
40
−
−
01
00
00
80
40
40
−
−
02
02
AA
80
40
40
−
−
02
03
F2
80
11
11
−
−
accumulation length for prescaler
FIR prefilter and prescaler DC normalization
scaler brightness control
−
−
−
−
128
64
64
128
64
64
128
64
64
128
17
17
scaler contrast control
scaler saturation control
2000 Mar 15
132
NXP [ NXP ]
