ov7620 OmniVision Technologies, Inc, ov7620 Datasheet - Page 34

• Manufacturer Part Number: ov7620
• Description: Single-chip Cmos Vga Color Digital Camera
• Manufacturer: OmniVision Technologies, Inc

OV7620/OV7120 Product Specifications - Rev. 1.2 (7/10/01)
Interlaced:
FD<1:0>- field mode selection. Each frame consists of two fields: Odd & Even, these bits defines the
Progressive Scan:
FD<1:0> - frame mode selection.
VSYNC
FODD
HREF
ODD MODE
FD<7:2>=000001
FD<1:0>=01
HREF
FD<7:2>=000001
FD<1:0>=01
HREF
EVEN MODE
FD<7:2>=000010
FD<1:0>=10
00 - OFF mode; HREF is not asserted in both fields, one exception is the single frame transfer
01 - ODD mode; HREF is asserted in odd field only.
10 - EVEN mode; HREF is asserted in even field only.
11 - FRAME mode; HREF is asserted in both odd field and even field. FD<7:2> useless (default).
00 - OFF mode; HREF is not asserted in both fields, one exception is the single frame transfer
01,10 - SLOT mode; HREF is asserted in frame according FD<7:2>.
11 - FRAME mode; HREF is asserted in every frame. FD<7:2> useless
assertion of HREF in relation to the two fields.
operation (see the description for the register [13])
operation (see the description for the register [13])
FIG 0.10 Frame Division Examples (Progressive Scan Mode)
FIG 0.9 Field Division Examples (Interlaced Mode)
1 field
slot 1
slot 2
slot 2
1 frame
slot 2
slot 1
slot 1
slot 3
slot 2
slot 2
Preliminary
slot 4
slot 1
slot 1
slot 1
slot 2
slot 2
Company Confidential
OMNIVISION TECHNOLOGIES INC.
slot 2
slot 1
slot 1
slot 3
slot 2
slot 2
slot 4
slot 1
slot 1