STV-974/552S-R01 STMicroelectronics, STV-974/552S-R01 Datasheet - Page 12

• Manufacturer Part Number: STV-974/552S-R01
• Description: KIT DEMO W/VS6552
• Manufacturer: STMicroelectronics

Specifications of STV-974/552S-R01

• Sensor Type: CMOS Imaging, Color (RGB)
• Sensing Range: VGA
• Interface: I²C
• Sensitivity: 30 fps
• Embedded: No
• Utilized Ic / Part: STV0974E, VS6552
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 497-3891

STV0974
Note:
Table 4: Output video formats
Byte ordering assumes a little endian memory system, i.e. in 16-bit formats, the least significant
byte is sent first. For example, the UYVY format produces the sequence U Y
Nevertheless various options are available to suit memory system requirements:
YUV format processing The RGB pixel is converted to YUV coordinates according to ITU-R
BT601 specification. The YUV coordinates are then rounded and clipped for an 8-bit
representation. To produce a 4:2:2 digital component video, U and V components are filtered and
down sampled by a factor of 2, coincident with Y sampling time.
RGB format processing Dithering: In order to avoid contouring effects on low color depth
displays, the RGB components are dithered prior to truncation to the required number of bits.
Framing: The output frame is produced by performing the following steps:
1 Blanking code insertion: During video blanking intervals, blanking codes are inserted in the
2 Synchronization pattern detection and correction: The coder performs detection of various
3 Video Timing Reference Code Insertion: A 4-byte sequence is inserted at the beginning and
Table 5: XY bits definition
SAV (Start of Active Video) is defined as the 4-byte sequence where H = 0.
EAV (End of Active Video) is defined as the 4-byte sequence where H = 1.
UYVY
RGB565
RGB444
RGB332
7 (msb)
6
5
4
3
2
1
0 (lsb)
●
●
●
Name
output stream. The default blanking code is the 16-bit pattern 0x1080, corresponding to Y =
0x10 and U/V = 0x80 as per
synchronization patterns and applies a correction according to the current output format.
the end of each digital video line to delineate lines and frames in the video stream. The
sequence is defined in
Byte ordering can be changed to big endian
In YUV formats, the U and V components can be swapped
In RGB formats, the R and B components can be swapped
Bit
Y
Y
R
0
R
1
F
V
H
P3
P2
P1
P0
3
7
7
4
2
Symbol
0
Y
Y
R
R
2
6
6
3
1
0
Y
Y
R
R
1
5
5
0
2
0
Y
Y
R
G
0
4
4
R
1
2
Y
Y
R
3
G
3
3
R
0
1
Y
Y
G
2
G
2
2
R
5
Always 1.
Even / Odd Field. To maintain compatibility with
V = 1 during field blanking, 0 otherwise.
H = 1 during line blanking, 0 otherwise.
Protection bit: P3 = V xor H
Protection bit: P2 = F xor H
Protection bit: P1 = V xor V
Protection bit: P0 = F xor V xor H
Y
Y
0
G
1
B
1
1
[1]
R
Y
Y
Format
4
1
0
G
B
0
0
G
0
3
U
V
as FF 00 00 XY, where the XY byte is defined by:
3
G
7
7
G
V
U
[1]
2
6
G
2
6
G
V
U
1
.
5
1
G
5
V
G
U
0
4
0
4
B
V
B
U
4
3
3
B
3
V
B
U
3
2
2
B
2
V
B
U
2
1
1
B
1
V
B
U
1
0
0
B
0
0
YUV (or YC
16-bit RGB format for direct viewfinder on 64 K color
LCDs.
16-bit RGB format for direct viewfinder on 4096 color
LCDs. Uses 4 bit per RGB component, the four MSB’s are
zero padded.
8-bit RGB format for low bit rate viewfinder usage.
Definition
B
C
R
[1]
) 4:2:2 format as per
, F is alternatively 0 or 1.
Description
Functional description
0
V Y
[1]
1
... as per
[1]
12/61
.