Philips Semiconductors
Preliminary specification
PAL/NTSC/SECAM video decoder with adaptive PAL/NTSC
comb filter, VBI-data slicer and high performance scaler
SAA7114H
Table 108 Vertical input window length; register set A (9AH[7:0]; 9BH[3:0]) and B (CAH[7:0]; CBH[3:0])
CONTROL BITS
A(9AH[7:0]) B(CAH[7:0])
YS11 YS10 YS9 YS8 YS7 YS6 YS5 YS4 YS3 YS2 YS1 YS0
VERTICAL INPUT ACQUISITION
WINDOW DEFINITION INPUT
WINDOW LENGTH IN
A(9BH[3:0]) B(CBH[3:0])
Y (VERTICAL) DIRECTION(1)
No input lines
1 input line
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
1
1
Maximum possible number of input
lines = 4095
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.
15.5.8 SUBADDRESSES 9CH TO 9FH
Table 109 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)
CONTROL BITS
A(9CH[7:0]) B(CCH[7:0])
A(9DH[3:0]) B(CDH[3:0])
XD11 XD10 XD9 XD8 XD7 XD6 XD5 XD4 XD3 XD2 XD1 XD0
No output
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
Odd lengths are allowed, but will be
filled up to even lengths
Maximum possible number of input
pixels = 4095; note 2
1
1
1
1
1
1
1
1
1
1
1
1
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 110 Vertical output window length; register set A (9EH[7:0]; 9FH[3:0]) and B (CEH[7:0]; CFH[3:0])
CONTROL BITS
A(9EH[7:0]) B(CEH[7:0])
YD11 YD10 YD9 YD8 YD7 YD6 YD5 YD4 YD3 YD2 YD1 YD0
VERTICAL OUTPUT ACQUISITION
WINDOW DEFINITION NUMBER
OF DESIRED OUTPUT LINES IN
Y (VERTICAL) DIRECTION
A(9FH[3:0]) B(CFH[3:0])
No output
1 pixel
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
0
1
0
1
1
Maximum possible number of output
lines = 4095; note 1
Note
1. If the desired output length is greater than the number of scaled output lines, the processing is cut.
2000 Mar 15
122
NXP [ NXP ]
