Add-In Cards
66
Development Kit User’s Manual
Figure 16. AUX Pull-Down Rework
The resistors are:
•
Port B: R5C9 and R5C5
•
Port C: R5B5 and R5B4
•
Port D: R2C1 and R2C2
A.4
Intel® High Definition Audio Interposer
Card (Mott Canyon 4) (Not Included)
The Mott Canyon 4 (MC4) Interposer Card is provided to enable Intel® High Definition
Audio (Intel® HD Audio) and modem functionality on the development board. Mott
Canyon 4 provides two 30-pin MDC1.0 connectors and one 12-pin MDC1.5 connector,
supporting up to two Intel HD Audio codecs simultaneously. The Interposer plugs into
any PCI Express or PCI slot for mechanical stability and is electrically connected to the
platform via a 2x13 ribbon cable from the Mott Canyon 4 card to a 2x8 header (J8E1)
and 2x4 header (J8E2). Headers on Mott Canyon 4 are provided for both modem and
audio sideband signals. MC4 provides four audio jacks and one modem jack. A set of
four more audio jacks may be added by using the MC4 paddle card. MC4 paddle card
also provides one jack each for S/PDIF IN and S/PDIF OUT. For additional information
see page 27 of the schematics. A diagram of the MC4 interposer and paddle card on a
platform is shown in Figure 17.
