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3.3.7
Audio Interface
Audio Interface - CN28
Pin
Signal
Pin
1
GND
3
+3.3V_RUN
7
+12V_RUN
9
+3.3V_RUN
10
11
GND
12
13
+3.3V_RUN
14
15
GND
16
HDA_RST#/I2S_RST#: HD Audio / AC'97 / I2S Codec Reset signal.
HDA_BCLK/I2S_CLK: HD Audio / AC'97 24MHz Serial Bit Clock or I2S Serial Data Clock signal.
SPKR: Speaker output
GP0_I2C_DAT: General Purpose I2C data line.
GP0_I2C_CLK: General Purpose I2C clock line.
Please be aware that using CQ7-D59 carrier board, audio functionalities are not directly supported.
If the system's application needs audio support, it is necessary to provide external Audio codec modules, suited to the audio interface offered by the Qseven
used.
SECO can provide for optional Audio modules with HD Audio Codec or I2S audio codec onboard. Please check paragraphs 4.2.2 and 4.2.3 for further details.
CQ7-D59
CQ7-D59 - Rev. First Edition: 1.0 - Last Edition: 1.1 - Author: S.O. - Reviewed by S.B. Copyright © 2021 SECO S.p.A.
Since Qseven
I2S), then on CQ7-D59 carrier board there isn't any Audio codec.
Instead, the audio signals coming out from Qseven
Signal
directly, without further elaborations, on dedicated connector CN28, which
2
GP0_I2C_DAT
is a 15-pin pin header, p2.54 mm h= 6mm, type NELTRON p/n 2213S-16G-E5 or equivalent,
4
GP0_I2C_CLK
with the pinout shown in the table on the left.
6
SPKR
This connector can be used to connect external audio codec modules, specific for the kind of
interface offered by the Qseven
8
HDA_SDI/I2S_SDI
Signals available on the connector are the following:
HDA_SDO/I2S_SDO
HDA_SYNC/I2S_WS
HDA_SDI/I2S_SDI: HD Audio / AC'97 / I2S Serial Data Input signal.
HDA_RST#/I2S_RST#
HDA_SDO/I2S_SDO: HD Audio / AC'97 / I2S Serial Data Output signal.
HDA_BCLK/I2S_CLK
HDA_SYNC/I2S_WS: HD Audio / AC'97 Serial Bus Synchronization or I2S Word Select signal.
®
modules can have three different audio standard interfaces (AC'97, HD audio,
®
module used.
®
module are carried out
®
module
38
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