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LF3330 Datasheet(PDF) 4 Page - LOGIC Devices Incorporated

Part No. LF3330
Description  Vertical Digital Image Filter
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Maker  LODEV [LOGIC Devices Incorporated]
Homepage  http://www.logicdevices.com
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LF3330 Datasheet(HTML) 4 Page - LOGIC Devices Incorporated

 
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DEVICES INCORPORATED
LF3330
Vertical Digital Image Filter
4
Video Imaging Products
11/08/2001–LDS.3330-M
ACC — Accumulator Control
When ACC is HIGH, the accumulator
is enabled for accumulation and the
accumulator output register is
disabled 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 registers and the line
buffers. When SHEN is LOW, data
is loaded into the input/cascade
registers and shifted through 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.
RSL3-0 — Round/Select/Limit Control
RSL3-0 determines which of the
sixteen user-programmable round/
select/limit registers are used in the
round/select/limit circuitry. A
value of 0 on RSL3-0 selects round/
select/limit register 0. A value of 1
selects round/select/limit register 1
and so on. RSL3-0 is latched on the
rising edge of CLK (see the round,
select, and limit sections for a
complete discussion).
OED — DOUT Output Enable
When OED is LOW, DOUT15-0 is
enabled for output. When OED is
HIGH, DOUT15-0 is placed in a
high-impedance state.
OEC — COUT Output Enable
When OEC is LOW, COUT15-0 is
enabled for output. When OEC is
HIGH, COUT15-0 is placed in a high-
impedance state.
BITS
FUNCTION
DESCRIPTION
0
Limit Enable
0 : Limiting Disabled
1 : Limiting Enabled
11-1
Reserved
Must be set to “0”
TABLE 4.
CONFIGURATION REGISTER 2 – ADDRESS 202H
BITS
FUNCTION
DESCRIPTION
0
Cascade Mode
0 : First Device
1 : Cascaded Device
11-1
Reserved
Must be set to “0”
TABLE 5.
CONFIGURATION REGISTER 3 – ADDRESS 203H
BITS
FUNCTION
DESCRIPTION
11-0
Line Buffer Length
See Line Buffer Description Section
TABLE 2.
CONFIGURATION REGISTER 0 – ADDRESS 200H
BITS
FUNCTION
DESCRIPTION
0
Line Buffer Mode
0 : Delay Mode
1 : Recirculate Mode
1
Line Buffer Load
0 : Normal Load
1 : Parallel Load
2
Odd and Even Field
0 : VB Port Disabled
Filtering Port Enable
1 : VB Port Enabled
3
Odd and Even Field
0 : VB Line Buffer Disabled
Filtering Line Buffer Enable
1 : VB Line Buffer Enabled
11-4
Reserved
Must be set to “0”
TABLE 3.
CONFIGURATION REGISTER 1 – ADDRESS 201H
FIGURE 4. RSL CIRCUITRY
32
32
4
RSL3-0
RND
LIMIT
32
16
16
RSL CIRCUITRY
DATA IN
32
DATA OUT
5
SELECT


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