lf3330 LOGIC Devices Incorporated, lf3330 Datasheet - Page 4

• Manufacturer Part Number: lf3330
• Description: Vertical Digital Image Filter
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
ACC — Accumulator Control
When ACC is HIGH, the accumulator
is enabled for accumulation and the
accumulator output register is dis-
abled for loading. When ACC is
LOW, no accumulation is performed
and the accumulator output register is
enabled for loading. ACC is latched
on the rising edge of CLK.
SHEN — Shift Enable
SHEN enables or disables the loading
of data into the input/cascade regis-
ters and the line buffers. When SHEN
is LOW, data is loaded into the input/
cascade registers and shifted through
T
T
T
T
ABLE
ABLE
ABLE
ABLE
BITS
BITS
BITS
BITS
11-0
11-4
11-1
11-1
0
1
2
3
0
0
2. C
3. C
4. C
5. C
FUNCTION
Line Buffer Length
FUNCTION
Line Buffer Mode
Line Buffer Load
Odd and Even Field
Filtering Port Enable
Odd and Even Field
Filtering Line Buffer Enable
Reserved
FUNCTION
Limit Enable
Reserved
FUNCTION
Cascade Mode
Reserved
ONFIGURATION
ONFIGURATION
ONFIGURATION
ONFIGURATION
R
R
R
R
EGISTER
EGISTER
EGISTER
EGISTER
DESCRIPTION
See Line Buffer Description Section
DESCRIPTION
0 : Delay Mode
1 : Recirculate Mode
0 : Normal Load
1 : Parallel Load
0 : VB Port Disabled
1 : VB Port Enabled
0 : VB Line Buffer Disabled
1 : VB Line Buffer Enabled
Must be set to “0”
DESCRIPTION
0 : Limiting Disabled
1 : Limiting Enabled
Must be set to “0”
DESCRIPTION
0 : First Device
1 : Cascaded Device
Must be set to “0”
the line buffers on the rising edge of
CLK. When SHEN is HIGH, data can
not be loaded into the input/cascade
registers or shifted through the line
buffers and their contents will not be
changed.
RSL
RSL
sixteen user-programmable round/
select/limit registers are used in the
round/select/limit circuitry. A value
of 0 on RSL
limit register 0. A value of 1 selects
round/select/limit register 1 and so
on. RSL
edge of CLK (see the round, select,
0 – A
1 – A
2 – A
3 – A
3-0
3-0
— Round/Select/Limit Control
determines which of the
DDRESS
DDRESS
DDRESS
DDRESS
3-0
is latched on the rising
3-0
selects round/select/
200H
201H
202H
203H
4
Vertical Digital Image Filter
and limit sections for a complete dis-
cussion).
OED — DOUT Output Enable
When OED is LOW, DOUT
enabled for output. When OED is
HIGH, DOUT
impedance state.
OEC — COUT Output Enable
When OEC is LOW, COUT
enabled for output. When OEC is
HIGH, COUT
impedance state.
FUNCTIONAL DESCRIPTION
F
Video Imaging Products
IGURE
RSL CIRCUITRY
4. RSL C
RSL
4
15-0
15-0
3-0
is placed in a high-
is placed in a high-
IRCUITRY
32
32
5
9/19/2005–LDS.3330-N
DATA OUT
DATA IN
SELECT
32
32
16
16
15-0
LIMIT
15-0
RND
LF3330
is
is