SAA7118 Datasheet, PDF (152/169 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
Table 120 Vertical input window length; register set A [9AH[7:0]; 9BH[3:0]] and B [CAH[7:0]; CBH[3:0]]
VERTICAL INPUT ACQUISITION
WINDOW DEFINITION INPUT
WINDOW LENGTH IN
Y (VERTICAL) DIRECTION⁽¹⁾
No input lines
1 input line
Maximum possible number of input
lines = 4095
CONTROL BITS
A [9BH[3:0]]
B [CBH[3:0]]
A [9AH[7:0]]
B [CAH[7:0]]
YS11 YS10 YS9 YS8 YS7 YS6 YS5 YS4 YS3 YS2 YS1 YS0
0
0
0000000000
0
0
0000000001
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: YS > (number of input lines per field − 2), will result in field dropping.
15.7.8 SUBADDRESSES 9CH TO 9FH
Table 121 Horizontal output window length; register set A [9CH[7:0]; 9DH[3:0]] and B [CCH[7:0]; CDH[3:0]]
HORIZONTAL OUTPUT
ACQUISITION WINDOW
DEFINITION NUMBER OF
DESIRED OUTPUT PIXEL IN
X (HORIZONTAL) DIRECTION⁽¹⁾
No output
Odd lengths are allowed, but will be
filled up to even lengths
Maximum possible number of input
pixels = 4095; note 2
CONTROL BITS
A [9DH[3:0]]
B [CDH[3:0]]
A [9CH[7:0]]
B [CCH[7:0]]
XD11 XD10 XD9 XD8 XD7 XD6 XD5 XD4 XD3 XD2 XD1 XD0
0
0
0000000000
0
0
0000000001
1
1
1111111111
Notes
1. Reference for counting are luminance samples.
2. If the desired output length is greater than the number of scaled output pixels, the last scaled pixel is repeated.
Table 122 Vertical output window length; register set A [9EH[7:0]; 9FH[3:0]] and B [CEH[7:0]; CFH[3:0]]
VERTICAL OUTPUT ACQUISITION
CONTROL BITS
WINDOW DEFINITION NUMBER
A [9FH[3:0]]
A [9EH[7:0]]
OF DESIRED OUTPUT LINES IN
B [CFH[3:0]]
B [CEH[7:0]]
Y (VERTICAL) DIRECTION
YD11 YD10 YD9 YD8 YD7 YD6 YD5 YD4 YD3 YD2 YD1 YD0
No output
0
0 0000000000
1 pixel
0
0 0000000001
Maximum possible number of output 1
lines = 4095; note 1
1 1111111111
Note
1. If the desired output length is greater than the number of scaled output lines, the processing is cut.
2001 May 30
152