Interfaces and Connectors
EBX-11 Reference manual
43
Audio
The audio interface on the EBX-11 is implemented using the Analog Devices AD1981B Audio
Codec. This interface is AC’97 2.3 compatible. Drivers are available for most Windows-based
operating systems. To obtain the most current versions, consult the EBX-11 product support page
at
http://www.versalogic.com/private/pythonsupport.asp
J10 provides the line-level stereo input and line-level stereo output connection points. The
outputs will drive any standard-powered PC speaker set.
S
OFTWARE
C
ONFIGURATION
The audio interface uses PCI interrupt “INTB#”. The CMOS setup screen is used to select the
IRQ line routed to INTB#.
The audio controller can be disabled within the CMOS setup.
Table 21: Audio Connector
CBR-4004
J10 Pin
Signal
Name
Function
37
AUDINR
Line-In Right
39
AUDINL
Line-In Left
40
AGND
Ground
CBR-4004
J10 Pin
Signal
Name
Function
32
AUDOUTR
Line-Out Right
34
AUDOUTL
Line-Out Left
35
AGND
Ground
CPU Temperature Monitor
A thermometer circuit constantly monitors the die temperature of the CPU. This circuit can be
used to detect over-temperature conditions which can result from fan or heat sink failure or
excessive ambient temperatures.
The system can be configured to generate an interrupt when the temperature exceeds the BIOS
programmed threshold.
Contact the factory for information on reading and writing to the thermometer circuits.
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