Blackfin A-V EZ-Extender Manual
2-9
A-V EZ-Extender Hardware Reference
PDWN Connect Jumper (JP3.9/10)
Depending on the application, the
PDWN
pin of the OmniVision and
Kodak cameras can be left floating or controlled by a flag pin
(see
).
Decoder HSYNC Disconnect Jumper (JP3.11/12)
To connect the horizontal sync signal of the video decoder to the
PPI0
frame sync signal of the processor, install jumper
JP3.11/12
; otherwise,
the decoder’s horizontal sync is disconnected.
Decoder VSYNC Connect Jumper (JP3.13/14)
To connect the vertical sync signal of the video decoder to the
PPI0
frame
sync signal of the processor, install jumper
JP3.13/14
; otherwise, the
decoder’s vertical sync is disconnected.
Table 2-3. Jumper Locations and TWI Interface Sources
Jumper Location
TWI Interface Source
JP3.3/5
and
JP3.4/6
Programmable flags
JP3.5/7
and
JP3.6/8
2-wire interface of the processor
Table 2-4. PWDN Pin Connections
JP3.9/10 Jumper
PDWN Connection
Uninstalled
PDWN
is not used and, by default, the cameras function in standard mode
Installed
The
PDWN
functionality of the cameras is controlled by a flag pin of the
processor.
