c15bc1 aptina, c15bc1 Datasheet - Page 45

• Manufacturer Part Number: c15bc1
• Description: Mt9d014 1/4-inch 2mp Cmos Digital Image Sensor
• Manufacturer: aptina

Sensor Core Digital Data Path
Test Patterns
Table 11:
Solid Color Test Pattern
100 Percent Color Bars Test Pattern
PDF: 0526161444/Source:6112702771
MT0D014_DS - Rev. J 5/10 EN
Test Patterns
The MT9D014 supports a number of test patterns to facilitate system debug. Test
patterns are enabled using test_pattern_mode (R0x0600–1). The test patterns are listed
in Table 11.
Test patterns 0–3 replace pixel data in the output image (the embedded data rows are
still present). Test pattern 4 replaces all data in the output image (the embedded data
rows are omitted and test pattern data replaces the pixel data).
For all of the test patterns, the MT9D014 registers must be set appropriately to control
the frame rate and output timing. These include:
• All clock divisors
• x_addr_start
• x_addr_end
• y_addr_start
• y_addr_end
• frame_length_lines
• line_length_pck
• x_output_size
• y_output_size
The MT9D014 will disable digital corrections automatically when test patterns are acti-
vated. The test cursor is now added to the end of the data path.
In this mode, all pixel data is replaced by fixed Bayer pattern test data. The intensity of
each pixel is set by its associated test data register (test_data_red, test_data_greenR,
test_data_blue, test_data_greenB).
In this test pattern, shown in Figure 20 on page 46, all pixel data is replaced by a Bayer
version of an 8-color, color-bar chart (white, yellow, cyan, green, magenta, red, blue, and
black). Each bar is 200 pixels wide and occupies the full height of the output image. Each
color component of each bar is set to either “0” (fully off ) or 0x3FF (fully on for
10-bit data). The pattern repeats after 8 * 200 = 1600 pixels. The image size is set by
x_addr_start, x_addr_end, y_addr_start, y_addr_end and may be affected by the setting
of x_output_size, y_output_size. The color-bar pattern starts at the column identified by
x_addr_start. The number of colors that are visible in the output is dependent upon
x_addr_end – x_addr_start and the setting of x_output_size. The width of each color-bar
is fixed at 200 pixels.
test_pattern_mode
0
1
2
3
4
45
MT9D014: 1/4-Inch 2Mp CMOS Digital Image Sensor
Normal operation: no test pattern
PN9 link integrity pattern
Fade-to-gray color bars
Aptina reserves the right to change products or specifications without notice.
100% color bars
Description
Solid color
Sensor Core Digital Data Path
©2007 Aptina Imaging Corporation. All rights reserved.
Preliminary