LF3310QC15 LODEV [LOGIC Devices Incorporated], LF3310QC15 Datasheet - Page 13

• Manufacturer Part Number: LF3310QC15
• Description: Horizontal / Vertical Digital Image Filter
• Manufacturer: LODEV [LOGIC Devices Incorporated]

DEVICES INCORPORATED
HLD goes LOW, the Horizontal LF
Interface
The first value fed into the interface
on HCF
determines what the interface is going
to load. The three most significant
bits (HCF
Interface
or Configuration/Control Registers
(see Table 8). The nine least signifi-
cant bits (HCF
whatever is to be loaded (see
Tables 9-14). For example, to load
address 15 of the horizontal coefficient
banks, the first data value into the
LF Interface
load horizontal limit register 10, the
first data value should be C0AH. The
first address value should be loaded into
the interface on the same clock cycle that
latches the HIGH to LOW transition of
HLD (see Figures 12 and 13).
F
F
HPAUSE/VPAUSE
HPAUSE/VPAUSE
IGURE
IGURE
HCF/VCF
HCF/VCF
11-0
HLD/VLD
TM
TM
15. C
HLD/VLD
11-9
14. C
will load coefficient banks
is enabled for data input.
is an address which
CLK
TM
11-0
CLK
11-0
) determine if the LF
8-0
should be 00FH. To
W1: Coefficient Set 1 written to coefficient banks during this clock cycle.
W1: Configuration Register loaded with new data on this rising clock edge.
W2: Select Register loaded with new data on this rising clock edge.
ONFIGURATION AND
) are the address for
OEFFICIENT
ADDR
ADDR
1
1
B
CONFIGURATION REGISTER
ANK
S
ELECT
L
COEF
OADING
The next value(s) loaded into the
interface are the data value(s) which
will be stored in the bank or register
defined by the address value. When
loading coefficient banks, the inter-
face will expect eight values to be
loaded into the device after the
address value. The eight values are
coefficients 0 through 7. When
loading select or Configuration
Registers, the interface will expect one
value after the address value. When
loading round registers, the interface
will expect four values after the
address value. When loading limit
registers, the interface will expect two
values after the address value.
Figures 12 and 13 show the data
loading sequences for the coefficient
Registers.
banks and Configuration/Control
0
R
EGISTER
S
DATA
EQUENCE WITH
1
L
OADING
W1
COEF
COEFFICIENT SET 1
13
S
Horizontal / Vertical Digital Image Filter
1
EQUENCE WITH
HPAUSE
ADDR
2
SELECT REGISTER
AND
HPAUSE
VPAUSE I
Both HPAUSE and VPAUSE allow the
user to effectively slow the rate of data
loading through the LF Interface
When HPAUSE is HIGH, the LF
Interface
the Horizontal Filter is held until
HPAUSE is returned to a LOW.
When VPAUSE is HIGH, the LF
Interface
the Vertical Filter is held until
VPAUSE is returned to a LOW.
Figures 14 through 17 display the
effects of both HPAUSE and VPAUSE
while loading 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
Video Imaging Products
AND
TM
TM
VPAUSE I
affecting the data used for
affecting the data used for
MPLEMENTATION
COEF
DATA
7
1
MPLEMENTATION
11/08/2001-LDS.3310-H
LF3310
W2
W1
TM
.