lf3320 LOGIC Devices Incorporated, lf3320 Datasheet - Page 16

• Manufacturer Part Number: lf3320
• Description: Horizontal Digital Image Filter
• Manufacturer: LOGIC Devices Incorporated

DEVICES INCORPORATED
loading through the LF Interface
When PAUSEA is HIGH, the LF Inter-
face
A is held until PAUSEA is returned to
a LOW. When PAUSEB is HIGH,
the LF Interface
used for Filter B is held until PAUSEB
is returned to a LOW. Figures 19
through 22 display the effects of both
PAUSEA and PAUSEB while loading
F
F
F
PAUSEA/PAUSEB
CFA/CFB
IGURE
IGURE
IGURE
TM
CFA/CFB
LDA/LDB
CFA/CFB
affecting the data used for Filter
LDA/LDB
CLK
11-0
LDA/LDB
17. C
18. C
19. C
CLK
11-0
W1: Configuration Register loaded with new data on this rising clock edge.
W2: Select Register loaded with new data on this rising clock edge.
W3: Round Register loaded with new data on this rising clock edge.
W4: Limit Register loaded with new data on this rising clock edge.
CLK
11-0
W1: Coefficient Set 1 written to coefficient banks during this clock cycle.
W2: Coefficient Set 2 written to coefficient banks during this clock cycle.
W3: Coefficient Set 3 written to coefficient banks during this clock cycle.
W1: Coefficient Set 1 written to coefficient banks during this clock cycle.
TM
OEFFICIENT
ONFIGURATION
OEFFICIENT
affecting the data
ADDR
CONFIG REG
ADDR
1
ADDR
DATA
1
1
COEFFICIENT SET 1
B
B
1
COEF
ANK
W1
ANK
ADDR
/C
TM
SELECT REG
0
.
ONTROL
2
L
L
COEF
DATA
OADING
OADING
coefficient and control data.
Table 15 shows an example of loading
data into the coefficient banks. The
following data values are written into
address 10 of coefficient banks 0
through 7: 210H, 543H, C76H, 9E3H,
701H, 832H, F20H, 143H. Table 16
shows an example of loading data
into a Configuration Register. Data
value 003H is written into Configura-
0
1
R
COEF
W2
ADDR
EGISTER
S
S
7
3
EQUENCE
EQUENCE WITH
DATA
ADDR
ROUND REGISTER
W1
1
L
2
COEFFICIENT SET 2
OADING
DATA
COEF
COEF
COEFFICIENT SET 1
2-16
2
0
1
DATA
PAUSE I
S
EQUENCE
3
W3
DATA
COEF
4
MPLEMENTATION
ADDR
7
Horizontal Digital Image Filter
ADDR
4
W2
DATA
tion Register 4. Table 17 shows an
example of loading data into a round
register. Data value 7683F4A2H is
written into Filter A round register 12.
Table 18 shows an example of loading
data into a select register. Data value
00FH is loaded into Filter A select reg-
ister 2. Table 19 shows an example of
loading data into Filter B limit register
7. Data value 3B60H is loaded as the
3
COEFFICIENT SET 3
LIMIT REGISTER
COEF
Video Imaging Products
1
DATA
0
2
DATA
COEF
3
COEF
DATA
7
7
4
W4
6/22/2007–LDS.3320-R
W3
LF3320
W1