BT848 ETC, BT848 Datasheet - Page 81

• Manufacturer Part Number: BT848
• Description: Single-Chip Video Capture for PCI
• Manufacturer: ETC

Bt848/848A/849A
Single-Chip Video Capture for PCI
Figure 32. Video Timing in SPI Mode
Brooktree
Notes: (1). HRESET precedes VRESET by two clock cycles at the beginning of fields 1, 3, 5 and 7 to facilitate external
HACTIVE
VACTIVE
HACTIVE
VACTIVE
HRESET
VRESET
HRESET
VRESET
VBISEL
2. ACTIVE pin may be programmed to be composite ACTIVE or horizontal ACTIVE.
3. FIELD transitions with the end of horizontal active video defined by HDELAY and HACTIVE.
VBISEL
FIELD
®
FIELD
field generation.
(1)
B
B
EGINNING OF FIELDS
EGINNING OF FIELDS
2–6
2–6
SCAN LINES
L848A_A
SCAN LINES
1, 3, 5, 7
2, 4, 6, 8
VDELAY/2
VDELAY/2
SCAN LINES
SCAN LINES
E
General Purpose I/O Port
LECTRICAL
I
NTERFACES
71