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Please remember that CN24 uses a PCI-e x1 connector, but it is used to carry out HD / AC'97 / I2S audio interface, it is not used to realise a PCI-e
interface. The compatibility with PCI-e add-on cards is only mechanical and electrical, not functional.
Description
+12V Power Rail
+12V Power Rail
+12V Power Rail
Power Ground
General Purpose I
2
C Bus Clock line
2
General Purpose I
C Bus Data line
Power Ground
+3.3V Power Rail
Audio Reset signal
+3.3V Auxiliary Power Rail
Not Connected
Speaker Signal Output
Power Ground
Not Connected
Not Connected
Power Ground
Hot Plug presence detect
Power Ground
(*) AUDIO_SPKR signal will be available only when SW11 switch #3 is set to OFF position.
CQ7-A30
CQ7-A30 - Rev. First Edition: 1.0 - Last Edition: 2.0 - Author: S.B. - Reviewed by G.G. Copyright © 2016 SECO S.r.l.
Audio Interface Slot CN24
Pin name
Pin nr.
Pin nr.
+12V_S
B1
A1
+12V_S
B2
A2
+12V_S
B3
A3
GND
B4
A4
GP0_I2C_CK
B5
A5
GP0_I2C_DAT
B6
A6
GND
B7
A7
+3.3V_S
B8
A8
AUDIO_RST#
B9
A9
+3.3V_A
B10
A10
N.C.
B11
A11
AUDIO_SPKR (*)
B12
A12
GND
B13
A13
N.C.
B14
A14
N.C.
B15
A15
GND
B16
A16
AUDIO_PRSNT2#
B17
A17
GND
B18
A18
Pin name
Description
PRSNT1#
Hot Plug presence detect (tied to GND)
+12V_S
+12V Power Rail
+12V_S
+12V Power Rail
GND
Power Ground
HD/AC'97 24MHz Serial Bit Clock or I2S Serial Data
AUDIO_BCLK
Clock signal
AUDIO_SDO
Audio Serial Data Output signal
AUDIO_SDIN
Audio Serial Data Input signal
HD/AC'97 Serial Bus Synchronization or I2S Word
AUDIO_SYNC
Select signal
+3.3V_S
+3.3V Power Rail
+3.3V_S
+3.3V Power Rail
N.C.
Not Connected
GND
Power Ground
N.C.
Not Connected
N.C.
Not Connected
GND
Power Ground
N.C.
Not Connected
N.C.
Not Connected
GND
Power Ground
44
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