參數(shù)資料
型號: SCM20014
廠商: Motorola, Inc.
英文描述: VGA Digital Image Sensor(VGA數(shù)字圖像傳感器)
中文描述: VGA數(shù)碼圖像傳感器(顯卡數(shù)字圖像傳感器)
文件頁數(shù): 21/54頁
文件大?。?/td> 911K
代理商: SCM20014
SCM20014
MOTOROLA
21
Preliminary!! Last Update: 12/14/99
The
Color Tile Configuration Register; Table 7
, defines
the maximum number of lines and the maximum num-
ber of colors per line. A maximum of four row and four
column definitions are permitted. The
Color Tile Config-
uration Register
defaults to two lines and two colors per
line. The user should leave this register in default unless
a unique CFA option has been ordered.
This register can be configured to any pattern combina-
tion of 1, 2, or 4 rows and 1, 2, or 4 columns.
The Color Tile Row Definition registers;
Table 8
,
Table
9
,
Table 10
, and
Table 11
define the sequence of colors
for each respective line. Each byte wide line definition
allows a maximum of four unique color definitions using
2 bits per color in a given line. Gain programming for
each color was described earlier in this section. The de-
fault line definitions are colors 00
b
, 01
b
, 00
b
, 01
b
for row
1 and 10
b
, 11
b
, 10
b
, 11
b
for row 2 which supports a Bay-
er pattern as defined in
section 2.1.2
. The user should
leave these registers in default unless a unique CFA op-
tion has been ordered.
For the default Bayer configuration of the color filter ar-
ray;
Figure 4
, the Color Gain Register addresses are as
follows: Reg (00
h
): green pixel of a green-red row; Reg
(01
h
): red pixel; Reg (02
h
): blue pixel; and Reg (03
h
):
green pixel of a blue-green row. The predefined gain
Address
03
h
DPGA Color 4 Gain Code
Green of Blue-Green Row
Default
02
h
msb (7)
6
5
4
3
2
1
lsb (0)
x
x
cg4[5]
cg4[4]
cg4[3]
cg4[2]
cg4[1]
cg4[0]
Bit
Number
Function
Description
Reset
State
7 - 6
Unused
Unused
xx
5 - 0
Gain
Gain = 0.88 + (0.06 * cg4
d
)
000010
b
Table 6. DPGA Color 4 Gain Register
Address
05
h
Color Tile Configuration
Default
05
h
msb (7)
6
5
4
3
2
1
lsb (0)
x
x
x
x
nc[1]
nc[0]
nr[1]
nr[0]
Bit
Number
Function
Description
Reset
State
7 - 4
Unused
Unused
xxxx
3 - 2
Columns
00
b
= 1 Column in tile.
01
b
= 2 Columns in tile.
1x
b
= 4 Columns in tile.
01
b
1 - 0
Rows
00
b
= 1 Row in tile.
01
b
= 2 Rows in tile.
1x
b
= 4 Rows in tile.
01
b
Table 7. Color Tile Configuration Register
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