ADVANCE INFORMATION
VPX 322xE
81
Micronas
FP-RAM VPX Back-End
Name
Default
Function
Mode
Number
of Bits
Address
Hex
Read Table for Window #2
h
’
11f
12
r
Position of VACT
bit[11:1]:
Delay of VACT relative to the trailing edge of HREF
vact_delay2
Load Table for Window #2 (WinLoadTab2)
h
’
12A
12
w/r
Vertical Begin
17
bit[8:0]:
Vertical Begin (first active video line within a field)
min. line number for 625/50 standards: 7
min. line number for 525/60 standards: 10
max. line number: determined by current TV line standard
vbeg2
bit[11:9]:
reserved (must be set to zero)
h
’
12B
12
w/r
Vertical Lines In
500
bit[8:0]:
Number of input lines
determines the range between the first and the last active
video line within a field; vbeg + vlinei should not exceed the
max. number of lines determined by the current line
standard (exceeding values will be corrected automatically)
vlinei2
bit[9]:
enable temporal decimation (0: off, 1: on)
with temporal decimation enabled, only the number of
frames selected in register h
’
157 (tdecframes) will be output
within an interval of 3000 frames
tdec2
bit[11:10]: field disable flags
11: Window disabled
10: Window enabled in ODD fields only
01: Window enabled in EVEN fields only
00: Window enabled in both fields
h
’
12C
12
w/r
Vertical Lines Out
240
bit[8:0]:
Number of output lines
vlineout cannot be greater than vlinein (no interpolation);
for vlineout < vlinein vertical compression via line dropping
is applied
vlineo2
bit[11:9]:
reserved (must be set to zero)
h
’
12D
12
w/r
Horizontal Begin
0
bit[10:0]:
Horizontal start of window after scaling (relative to npix)
hbeg > 0 enables cropping on the left side of the window
hbeg2
bit[11]:
reserved (must be set to zero)
h
’
12E
12
w/r
Horizontal Length
640
bit[10:0]:
Horizontal length of window after scaling (relative to npix)
hbeg + hlen can not exceed npix
hlen2
bit[11]:
reserved (must be set to zero)
h
’
12F
12
w/r
Number of Pixels
640
bit[10:0]:
Number of active pixels for the full active line (after scaling)
npix must be an even value within the range 32...864
npix2
bit[11]:
reserved (must be set to zero)