SAA7118 Datasheet, PDF (151/169 Pages) NXP Semiconductors – Multistandard video decoder with adaptive comb filter and component video input

Philips Semiconductors
Multistandard video decoder with adaptive
comb filter and component video input
Preliminary specification
SAA7118
15.7.7 SUBADDRESSES 94H TO 9BH
Table 117 Horizontal input window start; register set A [94H[7:0]; 95H[3:0]] and B [C4H[7:0]; C5H[3:0]]
HORIZONTAL INPUT
ACQUISITION WINDOW
DEFINITION OFFSET IN
X (HORIZONTAL) DIRECTION⁽¹⁾
CONTROL BITS
A [95H[3:0]]
B [C5H[3:0]]
A [94H[7:0]]
B [C4H[7:0]]
XO11 XO10 XO9 XO8 XO7 XO6 XO5 XO4 XO3 XO2 XO1 XO0
A minimum of ‘2’ should be kept, due 0
to a line counting mismatch
0 0000000010
Odd offsets are changing the C_B-C_R 0
sequence in the output stream to
C_R-C_B sequence
Maximum possible pixel
1
offset = 4095
0 0000000011
1 1111111111
Note
1. Reference for counting are luminance samples.
Table 118 Horizontal input window length; register set A [96H[7:0]; 97H[3:0]] and B [C6H[7:0]; C7H[3:0]]
HORIZONTAL INPUT
ACQUISITION WINDOW
DEFINITION INPUT WINDOW
LENGTH IN X (HORIZONTAL)
DIRECTION⁽¹⁾
No output
Odd lengths are allowed, but will be
rounded up to even lengths
Maximum possible number of input
pixels = 4095
CONTROL BITS
A [97H[3:0]]
B [C7H[3:0]]
A [96H[7:0]]
B [C6H[7:0]]
XS11 XS10 XS9 XS8 XS7 XS6 XS5 XS4 XS3 XS2 XS1 XS0
0
0 0000000000
0
0 0000000001
1
1 1111111111
Note
1. Reference for counting are luminance samples.
Table 119 Vertical input window start; register set A [98H[7:0]; 99H[3:0]] and B [C8H[7:0]; C9H[3:0]]
CONTROL BITS
VERTICAL INPUT ACQUISITION
WINDOW DEFINITION OFFSET IN
Y (VERTICAL) DIRECTION⁽¹⁾
A [99H[3:0]]
B [C9H[3:0]]
A [98H[7:0]]
B [C8H[7:0]]
YO11 YO10 YO9 YO8 YO7 YO6 YO5 YO4 YO3 YO2 YO1 YO0
Line offset = 0
0
0 0000000000
Line offset = 1
0
0 0000000001
Maximum line offset = 4095
1
1 1111111111
Note
1. For trigger condition: STRC[1:0] 90H[1:0] = 00; YO + YS > (number of input lines per field − 2), will result in field
dropping. Other trigger conditions: YO > (number of input lines per field − 2), will result in field dropping.
2001 May 30
151