Analog Devices Blackfin A-V EZ-Extender, Руководство пользователя

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Jumpers
2-10 Blackfin A-V EZ-Extender Manual
Encoder HREF Connect Jumper (JP3.15/16)
To connect the horizontal sync signal of the video encoder to the
PPI0
frame sync signal of the processor, install jumper
JP3.15/16
; otherwise,
the encoder’s horizontal reference is disconnected.
Encoder VSYNC Connect Jumper (JP3.17/18)
To connect the vertical sync signal of the video encoder to the
PPI0
frame
sync signal of the processor, install jumper
JP3.17/18
; otherwise, the
encoder’s vertical sync is disconnected.
Decoder Output Enable Jumper (JP3.19/20)
When installed, jumper
JP3.19/20
enables the video decoder’s data out-
put signals on the
VID_IN
bus.
SNAPSHOT_FODD Disconnect Jumper (JP3.21/22)
The
SNAPSHOT_FODD
net of the Blackfin A-V EZ-Extender is a general-pur-
pose flag pin. The flag pin connects to
SNAPSHOT
(the Kodak camera
evaluation board’s signal) and
FODD
(the OmniVision camera evaluation
board’ control signal). Do not install the jumper unless the processor
needs to control these signals. The flag pin also connects to the SPI select
pin of the AD1836A audio codec—do not install
JP3.21/22
when using
the audio interfaces.