参数资料
型号: CS7620-IQ
厂商: CIRRUS LOGIC INC
元件分类: 消费家电
英文描述: CCD IMAGER ANALOG PROCESSOR
中文描述: SPECIALTY CONSUMER CIRCUIT, PQFP64
封装: 10 X 10 X 1.40 MM, MS-026, TQFP-64
文件页数: 40/70页
文件大小: 1032K
代理商: CS7620-IQ
CS7620
40
DS301PP2
4.18
Timing Control - Start of Black Pixels
Default = 04h; Read/Write (address 1Ch)
4.19
Timing Control - End of Black Pixels
Default = 3Fh; Read/Write (address 1Dh)
Bit Number
Bit Name
Default
7
6
5
4
3
2
1
0
Reserved
blk_begin3
0
blk_begin2
1
blk_begin1
0
blk_begin0
0
-
-
-
-
Bit
Mnemonic
Function
7:4
-
Reserved
Black Pixels:
This register indicates the beginning of the black pixels within
a horizontal line.
3
blk_begin3
Before the black pixels, there can be some extra pixels, due to latency through
the horizontal shift register inside the CCD. The default value for this register
is 4, since IBM35CCD2PIX1 has 3 extra pixels. (See Figure 28)
2
blk_begin2
1
blk_begin1
0
blk_begin0
Bit Number
Bit Name
Default
7
6
5
4
3
2
1
0
Reserved
-
blk_end6
0
blk_end5
1
blk_end4
1
blk_end3
1
blk_end2
1
blk_end1
1
blk_end0
1
Bit
Mnemonic
Function
7
-
Reserved
Black Pixels:
This register indicates the end of the black pixels within the hor-
izontal line.
6
5
4
3
2
1
0
blk_end6
blk_end5
blk_end4
blk_end3
blk_end2
blk_end1
blk_end0
This register is used by the black level loop together with blk_begin, to acquire
the proper black level on a line by line basis. Since the loop has some latency,
the value stored in this register, should be 10 less than the actual last black
pixel in each line. Since in IBM35CCD2PIX1, this number is 73, the default is
set to 63. (See Figure 28)
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