MSC Q7-BT MSC_Q7-BT_User_Manual.pdf 29 / 113
4 Module Connector Signal Description
In the following tables signals are marked with the power rail
associated with the pin, and for input and I/O pins, with the input
voltage tolerance. The pin power rail and the pin input voltage
tolerance may be different.
Output pins are also classified as push pull (PP) or open drain (OD).
The column “PU/PD” describes pull-up and pull-down components on
the module.
An additional label, “SUS”, indicates that the pin is active during
suspend states (S3, S4, S5). Otherwise the signal is not active before
power state S0 (full powered) is reached. If suspend modes are used,
then care must be taken to avoid loading signals that are active during
suspend to avoid excessive suspend mode current draw.
4.1 High Definition Audio
The module provides an HDA Link for connecting HDA codecs on the carrier board.
Table 4-1 HDA Signal Description
Reset output to codec, active low.
Sample-synchronization signal to the codec(s).
24.00 MHz serial data clock
Serial TDM data output to the codec.
Serial TDM data inputs from the codec.
Output for audio buzzer – the “speaker” in PC-AT
systems.
Connect to HDA codec if input is available.
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