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.
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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.
Audio Interface Slot CN24
Description
Pin name
Pin nr.
Pin nr. Pin name
Description
+12V Power Rail
+12V_S
B1
A1
PRSNT1#
Hot Plug presence detect (tied to GND)
+12V Power Rail
+12V_S
B2
A2
+12V_S
+12V Power Rail
+12V Power Rail
+12V_S
B3
A3
+12V_S
+12V Power Rail
Power Ground
GND
B4
A4
GND
Power Ground
General Purpose I
2
C Bus Clock line
GP0_I2C_CK
B5
A5
AUDIO_BCLK
HD/AC
’
97 24MHz Serial Bit Clock or I2S Serial Data
Clock signal
General Purpose I
2
C Bus Data line
GP0_I2C_DAT
B6
A6
AUDIO_SDO
Audio Serial Data Output signal
Power Ground
GND
B7
A7
AUDIO_SDIN
Audio Serial Data Input signal
+3.3V Power Rail
+3.3V_S
B8
A8
AUDIO_SYNC
HD/AC
’
97 Serial Bus Synchronization or I2S Word
Select signal
Audio Reset signal
AUDIO_RST#
B9
A9
+3.3V_S
+3.3V Power Rail
+3.3V Auxiliary Power Rail
+3.3V_A
B10
A10
+3.3V_S
+3.3V Power Rail
Not Connected
N.C.
B11
A11
N.C.
Not Connected
Speaker Signal Output
AUDIO_SPKR (*)
B12
A12
GND
Power Ground
Power Ground
GND
B13
A13
N.C.
Not Connected
Not Connected
N.C.
B14
A14
N.C.
Not Connected
Not Connected
N.C.
B15
A15
GND
Power Ground
Power Ground
GND
B16
A16
N.C.
Not Connected
Hot Plug presence detect
AUDIO_PRSNT2#
B17
A17
N.C.
Not Connected
Power Ground
GND
B18
A18
GND
Power Ground
(*) AUDIO_SPKR signal will be available only when SW11 switch #3 is set to OFF position.
