Analog Devices ADSP2192-12 EZ-KIT LITE, Руководство пользователя

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ADSP2192-12 EZ-KIT Lite Evaluation System Manual
4-5
JP5
STAND ALONE
JP5
USB
Figure 4-4: USB/Stand-Alone Selection (JP5)
MODE JP5
*Stand Alone Pins 1 and 2
USB Pins 2 and 3
PCI N/A
* Denotes default setting.
Table 4-4: USB/Stand-Alone Selection (JP5)
4.5.3 External AC’97 Disable Jumpers (JP2, JP3)
The external AC’97 disable jumpers (JP2 and JP3) are used to disable the SDI1 and SDI2 pins of the
AC’97 interface in the ADSP2192-12 DSP. These pins are left disabled or grounded so the
respective pins on the ADSP2192-12 DSP are not left floating. If the board is using the SDI1 and
SDI2 pins via the Expansion Connector, install the respective jumper. The on-board AD1885 codec
will not be affected by these jumpers since the AD1885 uses SDI0 as a means of communication
with the ADSP2192-12 DSP.
MODE SD1 (JP2) SD2 (JP3)
*SDI Disable Install Install
SDI Enable Uninstall Uninstall
*Denotes default setting.
Table 4-5: External AC’97 Settings (JP2, JP3)
4.5.4 Codec Line In / Microphone Jumpers (JP4)
The codec Line In/ Microphone jumpers allow you to choose between the AD1885 being connected
to a Line In signal or a Microphone signal from the Audio Connector (P4). The audio connector has
an “IN” label on the edge bracket. If Microphone is selected, the AD1885 provides a built-in
amplifier with 20 dBs of gain. For more details on the AD1885 codec, refer to the AD1885
datasheet.
www.BDTIC.com/ADI