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參數(shù)資料
| 型號： | UDA1326PS |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | Codec |
| 英文描述： | USB AUDIO-CODEC(通用串行總線音頻編解碼器) |
| 中文描述： | USB音頻編解碼器（通用串行總線音頻編解碼器） |
| 文件頁數(shù)： | 12/43頁 |
| 文件大小： | 678K |
| 代理商： | UDA1326PS |
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Philips
Semiconductors, Inc.
USB-CODEC UDA1325PS
Technical Report
DML98022
* If I/O-expander used, HID inputs 3,4,5 & 6:
The functions of these inputs can be defined in
UniCoDes
too. For this you will have to select tabfield 2 of the
HID Report Descriptor
menu (see fig 2-4) and set the corresponding value of the function you had in mind.
12
* If I/O-expander used, output pins 1, 2 & 3:
The three output pins are also programmable in
UniCoDes
. For this you have the following addresses available:
-
Address 0Bh for defining the polarity of the output pins (see fig 2-6, LEFT).
-
Address 0Ch, 0Dh and 0Eh for defining the function for each pin. As you can see the functions are restricted
to 2 possible functions. These are Mute and the DBB functions (see fig 2-6, RIGHT)
The result is that when one of these two functions is toggled, the “state machine” or software routine in the
firmware will toggle the corresponding pins on the expander.
Figure 2-6
Output definition related addresses
* If I/O-expander used, Mute & Standby outputs:
If prefferred you can define either the Standby or Mute output on the expander. This can and may vary on each
application.
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