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| 型号： | AD9895KBCZRL |
| 厂商： | Analog Devices Inc |
| 文件页数： | 13/58页 |
| 文件大小： | 0K |
| 描述： | IC CCD SIGNAL PROC/GEN 64-CSPBGA |
| 标准包装： | 2,000 |
| 类型： | CCD 信号处理器，12 位 |
| 输入类型： | 逻辑 |
| 输出类型： | 逻辑 |
| 接口： | 3 线串口 |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 64-VFBGA，CSPBGA |
| 供应商设备封装： | 64-CSPBGA（9x9） |
| 包装： | 带卷 (TR) |
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REV. A
–20–
AD9891/AD9895
Complete Field: Combining the Regions
The individual regions are combined into a complete field readout
by using region change positions (RCP) and region pointers
(REGPTR). Figure 22 shows how each field is divided into
multiple regions. This allows the user to change the vertical
timing during various stages of the image readout. The boundaries
of each region are defined by the sequence change positions
(RCP). Each RCP is a 12-bit value representing the line number
bounding the region. A total of seven RCPs allow up to eight
different region areas in the field to be defined. The first RCP is
always hard-coded to zero, and the remaining seven are register
programmable. Note that there are only five possible individual
regions that can be defined, but the eight region areas allow the
same region to be used in more than one place during the field.
Within each region area, the region pointers specify which of the
five individual regions will be used. There are eight region
pointers, one for each region area. Table IX summarizes the
registers for the region change positions and region pointers.
UP TO EIGHT V-CLOCK REGION AREAS MAY BE DEFINED WITHIN ONE FIELD BY
USING THE REGION CHANGE POSITION AND THE REGION POINTERS.
REGION CHANGE POSTION #1
REGION CHANGE POSTION #2
REGION CHANGE POSTION #3
REGION CHANGE POSTION #4
REGION CHANGE POSTION #5
SINGLE FIELD (1 VD INTERVAL)
USE THE REGION SPECIFIED BY REGION POINTER 0
REGION CHANGE POSTION #0
(V-COUNTER = 0)
REGION CHANGE POSTION #6
REGION CHANGE POSTION #7
USE THE REGION SPECIFIED BY REGION POINTER 6
USE THE REGION SPECIFIED BY REGION POINTER 5
USE THE REGION SPECIFIED BY REGION POINTER 4
USE THE REGION SPECIFIED BY REGION POINTER 3
USE THE REGION SPECIFIED BY REGION POINTER 2
USE THE REGION SPECIFIED BY REGION POINTER 1
USE THE REGION SPECIFIED BY REGION POINTER 7
Figure 22. Complete Field Using Multiple Region Areas
Table VIII. Individual Vertical Region Parameters
Register
Length
Range
Description
HDLEN
12b
0–4095 Pixels
HD Line Length for Lines in Each Region 0–4
VxSTART
12b
0–4095 Pixel Location
Sequence Start Position for Each Vx Output in Each Region 0–4
VxSPTRFIRST
4b
Sequence 0–11
Sequence Pointer for Vx Output during Each Region 0–4
(Can Be Used with SPTRSECOND for Alternation, See Text)
VxINVFIRST
1b
High/Low
When High, the Polarity of Sequence VxSPTRFIRST Is Inverted
x is the V-output from 1–4.
Table IX. Complete Vertical Field Registers
Register
Length
Range
Description
VTPRCP
12b
0–4095 Line Location
Region Change Position for each Region Area in Field
VTPREGPTR
3b
Region 0–4Region Pointer for each Region Area of Field
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