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

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Jumpers
2-8 Blackfin A-V EZ-Extender Manual
For example,
JP3.4/6/8
refers to a single jumper that can be placed across
pins
4
and
6
(or pins
6
and
8
) of
JP3
. The dark pin indicates pin
1
of each
header.
Video Test Loopback Jumpers (JP1.1/2, JP1.3/4,
JP1.5/6)
For test purposes only, the video test jumpers loop-back the video
encoder’s output signals to the video decoder’s input signals. By default,
none of the video test loopback jumpers are installed.
Connector Voltage Selection Jumper (JP2)
The camera module and LCD display interfaces can be powered via the
extender. The actual voltage of the interfaces, 3.3V or 5V, is determined
by the
JP2
jumper’s placement (see Table 2-2 ).
TWI Source Selection Jumpers (JP3.3/5/7,
JP3.4/6/8)
Due to the fact that some Blackfin processors feature a built-in 2-wire
interface (TWI), while others need to emulate the interface with program-
mable flags, two jumpers are provided to plug the A-V EZ-Extender to
both TWI sources (see
Table 2-3 ).
Table 2-2. Jumper Locations and Connector Voltages
Jumper Location Connector Voltage
JP2.1/2
3.3V
JP2.2/3
5V
Not installed No power