vpx3224d ETC-unknow, vpx3224d Datasheet - Page 82

• Manufacturer Part Number: vpx3224d
• Description: Video Pixel Decoders
• Manufacturer: ETC-unknow

82
VPX 3225D, VPX 3224D
Address
Hex
h’151
h’152
h’153
h’154
h’157
Number
of Bits
12
12
12
12
12
Mode
w
w
w
w
w
Start position of the programmable ‘video active’
The start position has to be an even value and is given relative to the
trailing edge of HREF. Programmable VACT is activated with bit [2] of
the control word (h’140)!
bit [10:0]: start of VACT reference signal
End position of the programmable ‘video active’
The end position has to be an even value and is given relative to the
trailing edge of HREF.
bit [10:0]: end of VACT reference signal
HREF and VREF control
determines length and polarity of the timing reference signals
bit [0]:
bit [1]:
bit [2]:
bit [5:3]:
bit [6]:
Output Multiplexer
bit [7:0]:
bit [8]:
bit [9]:
bit [10]:
bit [11]:
Number of frames to output within 3000 frames
This value will be activated only if the corresponding latch flag is set
(control word h’140, bit [10] ).
Function
Odd/Even polarity
0
1
HREF Polarity
0
1
VREF Polarity
0
1
VREF pulse width, binary value + 2
000: pulse width = 2
111: pulse width = 9
1 disables field as output
setting this bit will force the ‘field’ pin to the high impedance
state
Multi-purpose bits on Port B
determines the state of Port B when used as programmable
output
activate multi-purpose bits on Port B
note that double clock mode has to be selected for this
option!
Port Mode
0
1
switch ‘VBI active’ qualifier
0
1
reserved (must be set to zero)
FP-RAM VPX Back-End
Temporal Decimation
odd high
even high
active high
active low
active high
active low
Output Multiplexer
parallel_out, ‘single clock’, Port A & B = FO[15:0];
‘double clock’
Port A = FO[15:8] / FO[7:0],
Port B = programmable output/not used;
connect ‘VBI active’ to VACT pin
connect ‘VBI active’ to TDO pin
HVREF
PRELIMINARY DATA SHEET
Default
40
720
0
0
0
0
0
0
3000
Name
pval_
start
pval_stop
refsig
oepol
hpol
vpol
vlen
disfield
outmux
bmp
bmpon
double
vbiact
tdecframes
Micronas