Eurotech Vector, User Manual

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Vector - User Manual
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Audio Interface
For its audio interface, the Vector uses an Intel
®
High Definition Audio (Intel HD Audio) compatible
codec providing high quality audio in an embedded environment. The following sections describe the
audio inputs and audio outputs provided by this codec. For electrical specifications, see Audio
Interface , page 39 .
Audio Inputs: Microphone
The Vector supports a stereo microphone input on header J6 , page 30 . This header includes a
microphone plug in sense signal.
Audio Outputs: Stereo Speakers and Stereo Line Out
The Vector drives an amplified speaker output on header J4 , page 29 and a stereo line output on
header J5 , page 29 . The stereo line out header includes a presence detect signal.
A/D Inputs
The Vector embedded controller accepts two analog inputs from header J23 , page 34 for general-
purpose A/D conversion. The embedded controller performs the A/D conversion and the processor
reads the result from the LPC bus. For electrical specifications, see Embedded Controller , page 37 .
Discrete I/O
The Vector provides various inputs and outputs (I/O) to support an external keypad, to provide
general-purpose inputs and outputs, and to control on-board functionality. The SMBus controls these
I/O devices. The following sections describe the discrete I/O on the Vector.
Keypad/GPIO
A keypad scan device included on the Vector supports up to a 10x8 keypad or up to eighteen GPIOs.
The default setting is eighteen GPIOs. Configuration is software-controlled using the SMBus. For the
SMBus address of this device, see System Management Bus , page 17 . The keypad/GPIO signals are
available on header J21 , page 33 . For electrical specifications, see Keypad/GPIO , page 39 .